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Stormwater Pollution Prevention Plan
Prepared in accordance with NYS DEC General Permit GP-0-20-001
for:
Saratoga Hospital- Myrtle Street
Owner/Operator(s):
Saratoga Hospital
221 Church Street
Saratoga Springs, NY 12866
SWPPP Contact(s):
The LA Group, PC
40 Long Alley
Saratoga Springs, NY 12866
1-518-587-8100
1-518-587-0180
SWPPP Preparation Date:
July 22, 2021
Table of Contents
1.0 PERMIT OVERVIEW AND REQUIREMENTS..................................................................... 1
1.1 PERMIT OVERVIEW...................................................................................................................... 1
2.0 SWPPP REVIEW, UPDATE.......................................................................................................2
2.1 SWPPP REVIEW.......................................................................................................................... 2
2.2 SWPPPUPDATE.......................................................................................................................... 2
3.0 SITE ASSESSMENT, EVALUATION AND PLANNING.......................................................3
3.1 PROJECT LOCATION..................................................................................................................... 3
3.2 PRE-DEVELOPMENT CONDITIONS ................................................................................................ 3
3.3 PROJECT TYPE ............................................................................................................................. 3
3.4 PROJECT SCOPE............................................................................................................................ 3
3.5 HISTORIC PRESERVATION DETERMINATION................................................................................. 3
3.6 RECEIVING wATERS ....................................................................................................................4
3.7 So1Ls ........................................................................................................................................... 4
4.0 EROSION AND SEDIMENT CONTROL.................................................................................4
4.1 EROSION AND SEDIMENT CONTROL PRACTICES........................................................................... 4
4.2 EROSION AND SEDIMENT CONTROL DRAWINGS........................................................................... 4
4.3 CONSTRUCTION PHASING PLAN AND SEQUENCE OF OPERATIONS................................................ S
4.4 EROSION AND SEDIMENT CONTROL PRACTICE MAINTENANCE.................................................... 6
4.5 EROSION AND SEDIMENT CONTROL INSPECTION.......................................................................... 7
4.6 CONTRACTOR SEQUENCE FORM .................................................................................................. 8
5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES......................8
S.1 STORMWATER MANAGEMENT CONTROLS ................................................................................... 8
5.2 GREEN INFRASTRUCTURE PRACTICES/RUNOFF REDUCTION TECHNIQUES................................... 9
5.3 POST CONSTRUCTION STORMWATER MANAGEMENT DRAWINGS .............................................. 10
5.4 HYDRAULIC AND HYDROLOGIC ANALYSIS ................................................................................ 10
S.S COMPARISON OF PRE AND POST CONSTRUCTION STORMWATER RUNOFF.................................. 10
6.0 POST CONSTRUCTION STORMWATER MAINTENANCE............................................ ll
6.1 MAINTENANCE TO BE PERFORMED ............................................................................................ 11
7.0 CONSTRUCTION WASTE ...................................................................................................... 13
8.0 OFFSITE VEHICLE TRACKING........................................................................................... 13
9.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS ..................................... 13
10.0 SPILL PREVENTION PRACTICES....................................................................................... 14
ll.0 CERTIFICATIONS.................................................................................................................... 18
12.0 DEFINITIONS............................................................................................................................23
Appendices
A Notice of Intent (NOI) and MS4 Acceptance Form
B Stormwater Management Report and Hydro CAD
C Map Set — Location Map and Construction Drawing
D SWPPP Inspection Forms —SWPPP Inspection Report
E Other SWPPP Forms — Construction Sequence, SWPPP Plan Changes,
Spill Response Form, Stormwater Management Practice Maintenance Log
F SPDES General Permit GP-0-20-001
G Historic Preservation/Endangered Species Documentation
H Deep Ripping and De-compaction (DEC, 2008)
I Stormwater Maintenance Agreement
Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street
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1 .0 PERMIT OVERVIEW AND REQUIREMENTS
1.1 Permit Overview
This Stormwater Pollution Prevention Plan (SWPPP) is prepared to inform the
landowner and construction personnel of the measures to be implemented for
controlling runoff and pollutants from the site during and after construction activities.
The objective of this plan is to comply with the New York Department of Environmental
Conservation (NYSDEC) State Pollutant Discharge Elimination System (SPDES)
General Permit for Stormwater Discharges from Construction Activities, Permit No. GP-
0-20-001 requirements. Any material conflicts between this plan and the site plans,
specification or instructions, must be brought to the attention of the design professional.
The project may have other permits and it is the responsibility of the owner and
contractor to know and understand all permits.
The operator will be issued a bill from New York State for a one hundred and ten dollar
($110.00) annual fee for the open GP-0-20-001 permit. The operator will also be billed
by New York State for a one time one hundred and ten dollar ($110.00) per acre fee for
the proposed disturbed soil area listed in the NOI, and finally a one time six hundred
and seventy five ($675.00) per acre fee for the proposed increased impervious area
listed in the NOI.
The operator is responsible to maintain onsite in a secure location that is accessible
during normal working hours to an individual performing a compliance inspection, the
following information:
✓ the Notice of Intent (NOI),
✓ the NYS Department of Environmental Conservation NOI
Acknowledgement Letter,
✓ the SWPPP,
✓ a copy of the General Permit (included in the SWPPP),
✓ MS4 SWPPP Acceptance Form (where applicable), and
✓ All inspection reports.
All post-construction stormwater management facilities must be inspected annually by a
qualified professional, a report prepared and submitted to the City Engineer
documenting the inspections as well as the maintenance activities that were completed
during the prior year.
Technical standards are detailed in the "New York State Standards and Specifications
for Sediment and Erosion and Sediment Control (November 2016)", as well as
illustrated on the Construction Drawings included in Appendix C. The design of post-
construction stormwater control practices follow the guidance provided by "New York
State Stormwater Management Design Manual."
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2.0 SWPPP REVIEW, UPDATE
2.1 SWPPP Review
Applicable Federal, State, and local regulatory agencies that have jurisdiction may
elect to review this SWPPP and notify the permittee in writing that the SWPPP does
not meet the requirements of their regulations. If the SWPPP needs to be revised,
the permittee and the site contractor will make the required modifications within
seven days of such notification and submit written certification to the notifying
agency that the changes have been implemented. A copy of the SWPPP will be
kept available on site for review by regulatory agencies, engineers, and
subcontractors.
This Project is in the City of Saratoga Springs which is a regulated MS4
Community, so a copy of this SWPPP was sent to the City for review. A copy of the
signed MS4 Acceptance form is provided in Appendix A of this SWPPP.
2.2 SWPPP Update
The permittee identified in this SWPPP shall amend the SWPPP under the
following conditions:
✓ Whenever the current provisions prove to be ineffective in minimizing
pollutants in stormwater discharge from the site
✓ Whenever there is a change in design, construction or operation that could
have an effect on the discharge of pollutants
✓ To address issues or deficiencies identified during an inspection by the
qualified inspector, the Department or other regulatory authority
✓ To identify a new subcontractor that will implement any part of the
SWPPP.
If modifications are required to the post-stormwater management practices and the
Project is within a regulated, traditional land use control MS4, the owner or operator
of the Project must notify the MS4 in writing of any planned amendments or
modifications to the post-construction stormwater management practice component
of the SWPPP. Unless otherwise notified by the MS4, the owner or operator shall
have the SWPPP amendments or modifications reviewed and accepted by the MS4
prior to commencing construction of the post-construction stormwater management
practice. The SWPPP PLAN CHANGES, AUTHORIZATION, AND CHANGE
CERTIFICATION form (Appendix E) must be filled out and a copy retained onsite
during construction.
If modifications are required to the post-stormwater management practices and the
Project is not within a Regulated, Traditional Land Use Control MS4, the changes
shall be documented in the SWPPP kept onsite.
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3.0 SITE ASSESSMENT, EVALUATION AND PLANNING
3.1 Project Location
The Project is located at the intersection of Myrtle and Morgan Street, City of
Saratoga Springs, Saratoga County, NY 12866. Access to the site is off of Myrtle
and Morgan Street.
See Appendix C for a general site location map.
3.2 Pre-Development Conditions
Currently, the site is bound to the west by the Saratoga Golf and Polo Club. The site
is bound to the south by Morgan Street and the north and east by existing
residential properties. The existing cover present in the proposed area of
disturbance is a mix of grass and wooded area with an existing driveway and
residence.
3.3 Project Type
This project is a new development project and has been designed in accordance
with Chapter 4 of the NYSDEC Stormwater Management Design Manual and
NYSDEC's General Permit (GP-0-20-001) for construction activities. Offsite work
included as part of the project will be completed in accordance with Table 1 of
Appendix B of the General Permit for "walking path projects".
3.4 Project Scope
The Project includes the construction of a four (4) story medical building. The
remainder of the proposed site improvements includes construction of a parking lot,
site lighting, landscaping, stormwater controls, and connections to the municipal
water and sewer. The Project Site represents the area that will be disturbed as a
result of the Project.
3.5 Historic Preservation Determination/Endangered Species
The project area is within an area that is shown on the OPRHP website that might
possibly contain archeologically sensitive resources and therefore a phase 1
archeological study was completed. The results of the study did not identify the
presence of archeological sites and that no additional investigation was
recommended. An OPRHP letter stating that the project will have no impact on
archeological and or historic resources can be found in Appendix G.
The Project will have no impact on any listed, proposed to be listed, threatened or
endangered species, or a critical habitat. The NYSDEC environmental mapper
print out is provided in Appendix G.
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3.6 Receiving Waters
The Site drains to multiple locations offsite to the south to Myrtle & Morgan Street,
to a wooded area to the west, an existing stormwater pond to the east and offsite to
an existing subdivision to the North. The ultimate discharge for the site is Putman
Brook.
3.7 Soils
According to the Natural Resources Conservation Service (NRCS) Web Soil
Survey, the area including and surrounding the Project Site is comprised of
Deerfield loamy fine sand, Galway loam and Windsor loamy sand. The hydrological
soil group classifications are `A', `C' and `A' respectively.
Test pits and falling head permeability tests were completed by Terracon
Engineering in December 2015. Additional test pits and infiltration testing were
completed in December 2020 and July 2021. Results of the tests are provided in
Attachment A of the Stormwater Management Report (Appendix B).
4.0 EROSION AND SEDIMENT CONTROL
4.1 Erosion and Sediment Control Practices
Temporary Structural Practices
✓ Silt Fence
✓ Dust Control
✓ Stabilized Construction Entrance
Permanent Structural Controls
✓ Grading
✓ Rock Outlet Protection
Temporary Stabilization Practices (including vegetative practices)
✓ Seed and mulch bare soil areas within 14 days of disturbance.
Permanent Stabilization Practices (including vegetative practices)
✓ Seed and mulch all disturbed areas. Slopes that are 3:1 or steeper should
receive a Rolled Erosion Control Product (RECP), sodding, and or hydro-
seeding a homogenous mixture of wood fiber mulch with tackifying agent.
Refer to Construction Drawings attached in Appendix C for detailed information on
each practice.
4.2 Erosion and Sediment Control Drawings
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Erosion and Sediment Control practices are shown on Construction Drawings
included in Appendix C.
4.3 Construction Phasing Plan and Sequence of Operations
The project will be phased to disturb less than five acres at a single time.
✓ Temporary structural erosion controls will be installed prior to earthwork as
per the attached plans.
✓ Areas to be undisturbed for more than 14 days will be temporarily
stabilized by seeding.
✓ Disturbed areas will be reseeded and mulched immediately after final
contours are re-established and no more than 14 days after the
completion of construction at that site.
✓ Temporary erosion control devices will not be removed until the area
served is stabilized by the growth of vegetation and the area is certified as
being stabilized by the Erosion Control Superintendent.
Reference
Construction Activities Sheet Start � Stop
Number
Sequence must include major items such as, but not limited to, clearing and
grubbing, excavation and grading, utility and infrastructure installation and any other
activity resulting in soil disturbance. Include installation of erosion and sediment
control ractices and timin of installation.
Schedule a pre-construction meeting with appropriate Prior to
permitting authority (City of Saratoga Springs) construction
Delineate resources to protect and establish method of spoils Week 1
disposal (on-site and off)
Establish staging area, construction entrance, topsoil Week 1
stockpile and concrete washout area
Clearing and grubbing as necessary for the installation of Week 1
perimeter controls
Construction and stabilization of perimeter controls. Install Week 1-2
initial runoff controls and stabilization
Clear site and rough grade Weeks 2-5
Begin roadway grading and utility installation Weeks 5-12
Install permanent stormwater management practices week 7-
completion
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Begin building construction Weeks 9-
completion
Begin parking lot construction Weeks 12-20
Protect post-construction practice areas during construction Throughout
to preserve native soil permeability, install SMP's only after
site is stabilized construction
Conduct soil restoration Week 15-
completion
Final fine grading, landscaping and stabilization Week 15-
completion
Monitor/maintain erosion and sediment control measures Ongoing
Remove erosion and sediment control measures upon
stabilization of contributing areas Ongoing
4.4 Erosion and Sediment Control Practice Maintenance
✓ Silt fence —maintenance shall be performed as needed and material removed
when "bulges" develop in the silt fence. When sediment material
accumulates to one third of the silt fence height, the sediment will be removed
and placed in an upland area and be stabilized. Any tears in the silt fence
fabric will be repaired or replaced, any silt fence that is not properly toed in
will be repaired and any broken posts will be replaced.
✓ Check dams — should be inspected after each rain event. Correct all damage
immediately. If significant erosion has occurred between structures, a liner of
stone or other suitable material should be installed. Remove sediment
accumulated behind the dam as needed to allow channel to drain through the
check dam and prevent large flows over the dam.
✓ Storm drain inlet protection (not including silt sacks) — inspect after each
storm event. Remove sediment when 50 percent of the storage volume is
achieved.
✓ Sediment trap — sediment shall be removed and the trap restored to the
original dimensions when the sediment has accumulated to '/2 of the design
depth.
✓ Sediment basins- should be inspected for stability and integrity at least once
every seven (7) days and especially after rain storms. Any structural failure in
sediment basins or trenches that serve them shall be repaired within 24 hours
after detection. All temporary sediment basins or trenches shall be cleaned
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out when one foot of sediment or half the design depth of the trap has
accumulated. All spoils shall be removed to a stabilized upland area.
✓ Stabilized construction entrance — entrance shall be maintained in a condition
which shall prevent tracking. This may require periodic top dressing with
additional aggregate. All sediment tracked onto or spilled on public rights of
way shall be removed immediately. When necessary, wheels must be
cleaned to remove sediment prior to entrance on public rights of way. When
washing is required, it shall be done in an area stabilized with aggregate and
wash water shall be directed away from streams or wetlands preferably to a
broad grassed area or a stormwater pond.
✓ Rock outlet protection — once a riprap outlet has been installed, the
maintenance needs are very low. It should be inspected after high flows for
evidence of scour beneath the riprap. Repair should be immediate.
✓ Replace top-soil, mulch and seed where seeding has been disturbed.
✓ Dust control — if the site is subject to dusty conditions on the construction
access roads or other open areas, these areas will be have water or other
suitable material applied that will inhibit the production of dust. This will be
done on an as needed basis or preventatively if problems are known to occur.
No chemical or polymer materials should be applied in close proximity to any
streams or wetlands.
4.5 Erosion and Sediment Control Inspection
■ It is recommended that a rain gage be installed at the site.
■ A qualified inspector shall conduct an assessment of the site prior to
the commencement of construction and certify in an inspection report
that the appropriate erosion and sediment controls described in the
SWPPP and required by GP-0-20-001 have been adequately installed
to ensure overall preparedness of the site for commencement of
construction.
■ This qualified inspector must be a Licensed Professional Engineer,
Certified Professional in Erosion and Sediment Control (CPESC),
Registered Landscape Architect, or someone working under the direct
supervision of, and at the same company as, the licensed Professional
Engineer or Registered Landscape Architect, provided they have
received 4 hours of Department endorsed training in proper erosion
and sediment control principles from a Soil and Water Conservation
District, or other Department endorsed entity. After receiving the initial
training, the qualified inspector shall receive 4 hours of training every 3
years.
■ The day-to-day erosion control activities on the site will be monitored
by the construction manager. The qualified inspector (as defined by
the NYS DEC SPDES regulations) and his crews will make at least
one inspection every seven (7) days of erosion control devices, and
non-stabilized areas during construction. A maintenance inspection
report will be completed by the qualified inspector after each
inspection. The report form to be completed by the inspector is
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attached in Appendix D. Reports should be compiled and maintained
on-site in the SWPPP 3-ring binder.
■ All measures will be maintained in good working order; if repair is
necessary, it will be initiated within 24 hours of report. The qualified
inspector shall take photographs of any needed repairs and also
photograph when the repairs are completed. These photographs will
be time and date stamped and attached to the weekly inspection
report.
■ Seeded and planted areas will be inspected for bare spots, washouts,
and healthy growth. If necessary, spot reseeding or sodding will be
implemented.
■ A trained contractor will be an employee from the contracting company
responsible for the implementation of the SWPPP. This person will be
onsite when any soil disturbing activities are being conducted. The
trained contractor must have received 4 hours of Department endorsed
training in proper erosion and sediment control principles from a Soil
and Water Conservation District, or other Department endorsed entity.
After receiving the initial training, the qualified inspector shall receive 4
hours of training every 3 years. This trained contractor cannot conduct
the regular SWPPP compliance inspections unless they meet the
qualified inspector qualifications.
4.6 Contractor Sequence Form
The operator shall prepare a summary of construction status using the Construction
Sequence Form (included in Appendix E) once every month. Significant deviations
to the sequence and reasons for those deviations (i.e. weather, subcontractor
availability, etc.), shall be noted by the contractor. The schedule shall be used to
record the dates for initiation of construction, implementation of erosion control
measures, stabilization, etc. A copy of this table will be maintained at the
construction site and updated.
5.0 POST CONSTRUCTION STORMWATER MANAGEMENT
PRACTICES
5.1 Stormwater Management Controls
The proposed Post Construction Stormwater Management controls on this project
are listed below:
✓ Underground Infiltration Chambers
✓ Infiltration Basin
✓ Bioretention Basin
✓ Green Roof
✓ Pocket Pond
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5.2 Green Infrastructure Practices/Runoff Reduction Techniques
The proposed Green Infrastructure practices or Standard Management practices
with Runoff Reduction capabilities on this project are listed below:
✓ Underground Infiltration Chambers
✓ Infiltration Basin
✓ Bioretention Basin
✓ Green Roof
The provided runoff reduction volume is 0.305 ac-ft, which is greater than the
required minimum runoff reduction volume of 0.127 ac-ft.
Soil Restoration
Excessively compacted areas and areas of cut and fill on the Project Site will have
soil restoration applied as needed and as specified in the table below. Attached in
Appendix H is "Deep Ripping and De-compaction, (DEC 2008)." This methodology
should be followed for soil restoration as specified in the table below:
Type ofSoil Disturbance Soil Restoration Requirement Comments/Examples
Minimal So�Disturbance Restoration not permitted Preservation of Natural Features
Areas where topso�is stripped Restoration not required Clearing and Grubbing
only-no change in grade
HSG A& B HSG C& D
Areas of cut and fill apply 6 inches of Aerate* and apply
topsoil 6 inches of topsoil
Heavy traffic areas onsite gSG A& B HSG C&D
(especially in a zone 5-25 feet
around buildings,but not within a Aerate and apply 6 Apply full Soil
5 foot perimeter around mches of topso� Restoration**
foundation walls)
Keep construction equipment from
Areas where Runoff Reduction Restoration not required,but may be crossing these areas. To protect
and/or infittration practices are appfied to enhance the reduction newly installed practice from any
appfied specified for appropriate practices ongoing construction activities
construct a single phase operation
fence area.
*Aeration inctudes the use of machines such as tractor-drawn implements with coutters making a narrow slit in
the soil,a roller with many spikes making indentations in the soil,or prongs which function hke a mini-subso�er
**Per "Deep Ripping and Decopmpaction,DEC 2008"
• If compost amendment is required, 2 to 4 inches of screened compost will be
incorporated into the soil.
• Prior to application of the deep-ripping and de-compaction, the depth to
bedrock or naturally occurring hardpan should be known so that the depth of
tillage be adjusted according to those restrictive depths.
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• Soils with a slope that exceeds 10% will not have full soil restoration with
deep-ripping and de-compaction due to potential for erosion from tilled soil.
• Any soil tillage (deep or shallow) will not be done on soils that are
excessively wet, as this will damage the soil.
• Any tillage will not be done within approximately 10' of the drip-line of any
existing established trees.
• Any large stones that are unearthed during tillage should be removed from
the surface prior to final surface preparation and vegetation establishment.
5.3 Post Construction Stormwater Management Drawings
Post construction stormwater management controls are shown on Construction
Drawings included in Appendix C.
5.4 Hydraulic and Hydrologic Analysis
The program utilized for quantifying stormwater runoff rates and volumes was
HydroCAD software, produced by Applied Microcomputer Systems of Chocorua,
NH. The SCS 24-hour Type II design storms for 1, 10, and 100-year frequency
rainfall were analyzed.
✓ Hydrologic/hydraulic analysis for all structural components of the stormwater
control system for the applicable design storms (see Appendix B).
✓ Comparison of post-development stormwater runoff conditions with pre-
development conditions (see Appendix B).
✓ Dimensions, material specifications and installation details for each post-
construction stormwater control practice (see Appendix B and C).
5.5 Comparison of Pre and Post Construction Stormwater Runoff
Stormwater Quantity. These calculations are based on the HydroCAD
analysis.
Pre Develo ment Post Develo ment
10 ear, 24 hour storm Q 33.00 CFS 22.05 CFS
100 ear, 24 hour storm Q 77.93 CFS 58.07 CFS
Water Quality Volume Calculations
The following was utilized to determine water quality volume:
WQv= (P) (Rv)(A)
12
Where:
WQv= Water Quality Volume (acre/feet)
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P = 90% Rainfall Event
Rv = 0.05 + 0.009(I) where I is impervious cover in percent
A = Subcatchment area in acres
Re uired Provided
Water Quality Volume (WQv) 0.407 AC FT 0.442 AC FT
6.0 POST CONSTRUCTION STORMWATER MAINTENANCE
6.1 Maintenance to be Performed
Saratoga Hospital will be responsible for the continuous upkeep and maintenance
of all post construction stormwater management facilities.
Post-construction maintenance for this project will consist of regular inspections of
permanent stormwater management facilities and steep slopes. These
maintenance procedures are essential to assure continual performance of the
stormwater management practices on your site. During the inspection and any
maintenance activity to the stormwater management practices, the responsible
party should fill out an inspection and maintenance log (Appendix E) to record that it
was done. Annual inspections of the post construction stormwater management
practices shall be completed and inspection reports shall be sent to the office of the
City Engineer for their records.
The City of Saratoga Springs shall approve a formal maintenance and inspection
agreement in accordance with City Code Chapter 242 for stormwater management
facilities to ensure the practices will be properly operated and maintained in
accordance with the long term operation and maintenance plans. This agreement
shall be binding on all subsequent land owners and recorded in the office of the
County Clerk as a deed restriction on the property.
Catch Basins (All)
■ Sediment removal with a vacuum truck should be done at least once a year,
preferably after spring runoff and then in early fall, or when they are at 50%
capacity, whichever comes first.
■ Any mechanical valves should be operated for inspection every two months.
Underground Infiltration Chambers
■ The systems should be inspected quarterly for the first year and if there are no
problems, the system can be inspected annually after the first year.
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■ If sediment is accumulating on the bottom of the system, pump in water via a
flushing port or observation well and then pump the sediment laden water out via
the flushing port or the inlet. This can be done with a vacuum truck. The system
may have to be flushed multiple times until it is clean of sediment.
■ Also, the manifold feeding the pipe storage should be flushed by pumping water
in the manhole access and out the flushing port. This should be done during the
routine inspection.
Green Roof
■ Maintenance may include watering, fertilizing and weeding as needed,
specifically during the first year.
■ Roof drains should be checked after each major storm event and cleaned as
needed.
■ Clean trash and debris out of system as necessary
■ Dead or diseased vegetation should be replaced
■ Areas devoid of mulch shall be re-mulched on an annual basis
Pocket Pond
■ Should be inspected twice a year and after heavy rain storms.
■ Any erosion or scour occurring in the pond, forebay or outlets shall be repaired
and revegetated as needed.
■ Sediment removal in the forebay shall occur every five to six years or when 50%
full.
■ Regular litter control to be performed as needed.
■ Mow grass when it reaches 4-6 inches in height as needed
Bioretention
■ Clean sediment out of pretreatment portion of the system when it accumulates to
a depth of three inches or more
■ Clean trash and debris out of system as necessary
■ Dead or diseased vegetation should be replaced
■ When the filtering capacity of the filter diminishes substantially (when water
ponds for more than 48 hours), the top few inches of discolored material shall be
removed and be replaced with fresh material. The removed sediments shall be
disposed of in an acceptable manner (i.e. landfill).
■ Silt and sediment should be removed from the filter bed when the accumulation
exceeds one inch.
■ Areas devoid of mulch shall be re-mulched on an annual basis
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Hydrodynamic Separator
■ Inspections of the separator must be completed at a minimum of twice a year
(Site specific maintenance frequency should be established during the first two or
three years or operation)
■ Maintenance shall be performed if any internal components are broken or
missing, inlet or outlet is obstructed or if the accumulation of trash, debris and/or
oil in the baffled chambers around the vortex is significant. All maintenance shall
be completed during dry weather when no flow is entering the system.
7.0 CONSTRUCTION WASTE
Waste Materials: All waste materials generated during construction will be disposed at
a suitable landfill, or transfer station.
Hazardous Waste: The project will not be a generator of hazardous waste and it is not
anticipated that any hazardous waste will be generated during construction. If there are
any materials generated, a licensed hazardous waste carrier will be contracted to
dispose the hazardous material at a suitable disposal site. If hazardous materials are
discovered during construction, the work will be stopped until the issue is resolved.
Waste: Portable sanitary facilities will be made available to construction personnel and
will be serviced regularly.
8.0 OFFSITE VEHICLE TRACKING
Excavation equipment involved with the construction will remain on the project site and
will not regularly egress or ingress the site. Any trucks used to bring in materials or
remove materials via municipal paved roads will do so over a stabilized construction
entrance. If any off-site vehicle tracking occurs, the contractor will be directed to initiate,
street sweeping program in the immediate vicinity of the site.
9.0 TEMPORARY STABILIZATION FOR FROZEN
CONDITIONS
The following temporary stabilization measures MUST be performed when construction
is occurring during winter/frozen ground conditions. The following requirements do not
supersede any other requirements of this SWPPP as they apply to non-frozen ground
conditions.
■ Perimeter erosion control MUST still be installed prior to earthwork
disturbance as per this SWPPP.
■ Any areas that cannot be seeded to turf by October 1 or earlier will
receive a temporary seeding. The temporary seeding will consist of
winter rye seeded at the rate of 120 pounds per acre (2.5 pounds per
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1,000 square feet) or stabilized as per the temporary stabilization for
winter construction/frozen conditions.
■ Any area of disturbance that will remain inactive for a period of 14
consecutive days MUST be mulched. This includes any previously
disturbed areas that are covered with snow.
■ Mulch MUST consist of loose straw applied at the rate of 2 to 3 bales
(90 to 100 pounds) per thousand square feet.
■ Mulch MUST be applied uniformly over the area of bare soil or bare
soil that is covered with snow. For the latter condition, mulch MUST
be applied on top of snow.
■ Using a tracked vehicle, mulch MUST be crimped into the bare
soil/snow. The tracked vehicle MUST be driven across the mulched
areas in at least two directions to maximize crimping of mulch into the
soil/snow.
■ If mulch gets blown off an area to a significant degree, the site
inspector WILL require that an area be re-mulched in accordance with
Items 2 through 5 above, and this area WILL be included on the
inspection checklist for the next inspection.
■ If a particular area repeatedly experiences loss of mulch due to wind,
then the inspector WILL require that an alternative method be used to
secure the mulch in place. Such alternatives may include the use of
netting, tackifier or other methods deemed appropriate by the
inspector.
■ During periods when snow is melting and/or surface soils are thawing
during daytime hours, mulched areas MUST be re-tracked (crimped)
as per Item 5 above at least once every seven days, more frequently if
directed by the inspector. Additional mulch may be required to obtain
complete coverage of an area. Biodegradable erosion control matting
may be required on steeper slopes.
■ Additional stabilization measures for non-frozen ground conditions
described in this SWPPP WILL be implemented at the time deemed
appropriate by the inspector.
During the winter season, if a site has been stabilized and soil disturbing activities have
been suspended for the winter, weekly inspections can be suspended. However, monthly
inspections must still be conducted. All normal weekly inspections must resume when soil
disturbing activities resume.
10.0 SPILL PREVENTION PRACTICES
Good Housekeeping and Material Management Practices
The following good housekeeping and material management practices will be followed
on site during the construction project to reduce the risk of spills or other accidental
exposure of materials and substances to stormwater runoff.
■ Materials will be brought on site in the minimum quantities required.
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■ All materials stored on site will be stored in a neat, orderly manner in
their appropriate containers, and if possible, under a roof or other
enclosure.
■ Products will be kept in their original containers with the original
manufacturer's label.
■ Substances will not be mixed with one another unless recommended
by the manufacturer.
■ Whenever possible, all of a product will be used up before disposal.
■ Manufacturer's recommendations for proper use and disposal will be
followed.
■ The construction manager or his designee will inspect regularly to
ensure proper use and disposal of materials on site.
■ The contractor shall prohibit washing of tools, equipment, and
machinery in or within 100 feet of any watercourse or wetland.
■ All above grade storage tanks are to be protected from vehicle damage
by temporary barriers.
Inventory for Pollution Prevention Plan
The materials and substances listed below are expected to be on-site during
construction.
■ Petroleum for fueling vehicles will be stored in above ground storage
tanks. Tanks will either be steel with an enclosure capable of holding
110% of the storage tank volume or of a Con-Store, concrete encased
type typically employed by NYSDOT. Hydraulic oil and other oils will
be stored in their original containers. Concrete and asphalt will be
stored in the original delivery trucks.
■ Fertilizer may be stored on site in its original container for a short
period of time prior to seeding. Original containers will be safely piled
on pallets or similar devices to protect from moisture.
■ Paints and other similar materials will be stored in their original
containers and all empty containers will be disposed of in accordance
with label directions.
■ Portable sanitary facilities, which contain chemical disinfectants
(deodorants) will be located on-site, with the disinfectants held in the
tank of the toilet.
Hazardous Products
These practices are used to reduce the risks associated with hazardous materials.
■ Products will be kept in original containers unless they are not re-
sealable.
■ Original labels and material safety data sheets will be retained; they
contain important product information.
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■ If surplus product must be disposed of, manufacturers' or local and
State recommended methods for proper disposal will be followed.
Spill Prevention
The following product specific practices will be followed on site.
Petroleum Products:
■ Construction personnel should be made aware that emergency
telephone numbers are located in this SWPPP.
■ The contractor shall immediately contact NYSDEC in the event of a
spill, and shall take all appropriate steps to contain the spill, including
construction of a dike around the spill and placing absorbent material
over this spill.
■ The contractor shall instruct personnel that spillage of fuels, oils, and
similar chemicals must be avoided and will have arranged with a
qualified spill remediation company to serve the site.
■ Fuels, oils, and chemicals will be stored in appropriate and tightly
capped containers. Containers shall not be disposed of on the project
site.
■ Fuels, oils, chemicals, material, equipment, and sanitary facilities will
be stored/located away from trees and at least 100 feet from streams,
wells, wet areas, and other environmentally sensitive sites.
■ Dispose of chemical containers and surplus chemicals off the project
site in accordance with label directions.
■ Use tight connections and hoses with appropriate nozzles in all
operations involving fuels, lubricating materials or chemicals.
■ Use funnels when pouring fuels, lubricating materials or chemicals.
■ Refueling and cleaning of construction equipment will take place in
parking areas to provide rapid response to emergency situations.
■ All on-site vehicles will be monitored for leaks and receive regular
preventative maintenance to reduce the chance of leakage. Any
vehicle leaking fuel or hydraulic fuel will be immediately scheduled for
repairs and use will be discontinued until repairs are made.
Fertilizers:
■ Fertilizer will be stored in its original containers on pallets with water
resistant coverings.
■ Proper delivery scheduling will minimize storage time.
■ Any damaged containers will be repaired immediately upon discovery
and any released fertilizer recovered to the fullest extent practicable.
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Paints:
■ All containers will be tightly sealed and stored when not required for
use.
■ Excess paint will not be discharged to the storm water system or
wastewater system, but will be properly disposed of according to
manufacturers' instructions or State and local regulations.
Concrete Trucks:
■ Concrete trucks will be allowed to wash out or discharge surplus
concrete or drum wash water only at designated locations on site.
Asphalt Trucks:
■ Asphalt trucks shall not discharge surplus asphalt on the site.
Spill Control Practices
In addition to the good housekeeping and material management practices discussed in
the previous sections of this plan, the following practices will be followed for spill
prevention and cleanup. The construction manager or site superintendent responsible
for the day-to-day site operations will be the spill prevention and cleanup coordinator.
He will designate at least three other site personnel who will receive spill prevention and
cleanup training. These individuals will each become responsible for a particular phase
of prevention and cleanup. The names of responsible spill personnel will be posted in
the material storage area and in the onsite construction office or trailer.
■ Manufacturers' recommended methods for spill cleanup will be clearly
posted and site personnel will be made aware of the procedures and
the location of the information and cleanup supplies. Any spill in
excess or suspected to be in excess of two gallons will be reported to
the NYSDEC Regional Spill Response Unit. Notification to the
NYSDEC (1-800-457-7362) must be completed within two hours of the
discovery of the spill.
■ Materials and equipment necessary for spill cleanup will be kept in the
material storage area onsite. Equipment and materials will include but
not be limited to absorbent pads, brooms, dust pans, mops, rags,
gloves, goggles, activated clay, sand, sawdust, and plastic and metal
trash containers specifically for this purpose.
■ All spills will be cleaned up immediately after discovery.
■ The spill area will be kept well ventilated and personnel will wear
appropriate protective clothing to prevent injury from contact with
spilled substance.
■ Spills of toxic or hazardous material will be reported to the appropriate
State or local government agency, regardless of the size
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11 .0 CERTIFICATIONS
Preparer Certification of Compliance with Federal, State, and Local Regulations
This Stormwater Pollution Prevention Plan was prepared in accordance
with the New York State Department of Environmental Conservation
SPDES General Permit for Stormwater Discharges from Construction
Activities (Permit No. GP-0-20-001), pursuant to Article 17, Titles 7, 8 and
Article 70 of the Environmental Conservation Law. This SPDES General
Permit implements the Federal Clean WaterAct pertaining to stormwater
discharges.
Name: Brett Strom Title: Civil Engineer
Signature: Date:
Company Name: The LA Group, PC
Owner Pollution Prevention Plan Certification
I certify under penalty of law that this document and all attachments were
prepared under my direction or supervision to assure that qualified
personnel properly gathered and evaluated the information submitted.
Based on my inquiry of the person or persons who are directly responsible
for gathering the information, the information submitted is, to the best of
my knowledge and belief, true, accurate, and complete. 1 am aware that
false statements made herein are punishable as a Class A misdemeanor
pursuant to Section 210.45 of the Penal Law.
1 understand that GP-0-20-001 requires site inspections be conducted by
a qualified professional once every seven (7) days and when approved in
writing by the NYSDEC, disturbances of greater than five (5) acres at one
time require site inspections two (2) times every seven (7) days. These
inspections shall be performed by a qualified professional as defined by
the General Permit.
The Owner/Operator will be held financially responsible for any and all fines
related to work tasks that are not specified by the Contractor(s)/Subcontractor(s)
below.
Name: Kevin Ronayne Title:
Signature: Date:
Company Name:
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Contractor and Subcontractor Certification
1 hereby certify that 1 understand and agree to comply with the terms and
conditions of the SWPPP and agree to implement any corrective actions
identified by the qualified inspector during a site inspection. 1 also
understand that the owner or operator must comply with the terms and
conditions of the New York State Pollutant Discharge Elimination System
("SPDES") general permit for stormwater discharges from construction
activities and that it is unlawful for any person to cause or contribute to a
violation of water quality standards. Furthermore, 1 understand that
certifying false, incorrect or inaccurate information is a violation of the
referenced permit and the laws of the State of New York and could subject
me to criminal, civil and/or administrative proceeding.
Name Title
Signature Date
Company Name
Address
City, State, Zip
Phone Number
1.
2.
SWPPP Components You 3.
Are Responsible For 4.
5.
6.
Name of Trained
Individual Responsible for
SWPPP Implementation Title
Signature of Trained
Individual Responsible for
SWPPP Implementation Date
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Contractor and Subcontractor Certification
1 hereby certify that I understand and agree to comply with the terms and
conditions of the SWPPP and agree to implement any corrective actions
identified by the qualified inspector during a site inspection. I also
understand that the owner or operator must comply with the terms and
conditions of the New York State Pollutant Discharge Elimination System
("SPDES") general permit for stormwater discharges from construction
activities and that it is unlawful for any person to cause or contribute to a
violation of water quality standards. Furthermore, 1 understand that
certifying false, incorrect or inaccurate information is a violation of the
referenced permit and the laws of the State of New York and could subject
me to criminal, civil and/or administrative proceeding.
Name Title
Signature Date
Company Name
Address
City, State, Zip
Phone Number
1.
2.
SWPPP Components You 3.
Are Responsible For 4.
5.
6.
Name of Trained
Individual Responsible for
SWPPP Implementation Title
Signature of Trained
Individual Responsible for
SWPPP Implementation Date
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Contractor and Subcontractor Certification
1 hereby certify that 1 understand and agree to comply with the terms and
conditions of the SWPPP and agree to implement any corrective actions
identified by the qualified inspector during a site inspection. 1 also
understand that the owner or operator must comply with the terms and
conditions of the New York State Pollutant Discharge Elimination System
("SPDES") general permit for stormwater discharges from construction
activities and that it is unlawful for any person to cause or contribute to a
violation of water quality standards. Furthermore, 1 understand that
certifying false, incorrect or inaccurate information is a violation of the
referenced permit and the laws of the State of New York and could subject
me to criminal, civil and/or administrative proceeding.
Name Title
Signature Date
Company Name
Address
City, State, Zip
Phone Number
1.
2.
SWPPP Components You 3.
Are Responsible For 4.
5.
6.
Name of Trained
Individual Responsible for
SWPPP Implementation Title
Signature of Trained
Individual Responsible for
SWPPP Implementation Date
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Contractor and Subcontractor Certification
1 hereby certify that 1 understand and agree to comply with the terms and
conditions of the SWPPP and agree to implement any corrective actions
identified by the qualified inspector during a site inspection. 1 also
understand that the owner or operator must comply with the terms and
conditions of the New York State Pollutant Discharge Elimination System
("SPDES") general permit for stormwater discharges from construction
activities and that it is unlawful for any person to cause or contribute to a
violation of water quality standards. Furthermore, 1 understand that
certifying false, incorrect or inaccurate information is a violation of the
referenced permit and the laws of the State of New York and could subject
me to criminal, civil and/or administrative proceeding.
Name Title
Signature Date
Company Name
Address
City, State, Zip
Phone Number
1.
2.
SWPPP Components You 3.
Are Responsible For 4.
5.
6.
Name of Trained
Individual Responsible for
SWPPP Implementation Title
Signature of Trained
Individual Responsible for
SWPPP Implementation Date
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12.0 DEFINITIONS
Construction Activity(ies) - means any clearing, grading, excavation, filling,
demolition, or stockpiling activities that result in soil disturbance. Clearing activities can
include, but are not limited to, logging equipment operation, the cutting and skidding of
trees, tree removal, stump removal and/or brush removal. Construction activity does
not include routine maintenance that is performed to maintain the original line and
grade, hydraulic capacity, or original purpose of a facility.
Construction Phasing Plan - a plan designed to construct particular portions of an
individual project at different times. Phasing is often used when a project is very large
to limit the disturbance at a single time to 5 acres per phase.
Erosion and Sediment Control Practices —temporary measures installed prior to
construction and maintained during construction to temporarily treat any stormwater
runoff. Once construction is completed and post-construction stormwater management
practices are installed and the site is stabilized, the erosion and sediment control
practices are removed from the site.
Final Stabilization - means that all soil disturbance activities have ceased and a
uniform, perennial vegetative cover with a density of eighty (80) percent over the entire
pervious surface has been established; or other equivalent stabilization measures, such
as permanent landscape mulches, rock rip-rap or washed/crushed stone have been
applied on all disturbed areas that are not covered by permanent structures, concrete
pavement.
Green Infrastructure — in the context of stormwater management, the term green
infrastructure includes a wide array of practices at multiple scales to manage and treat
stormwater, maintain and restore natural hydrology and ecological function by
infiltration, evapotranspiration, capture and reuse of stormwater, and establishment of
natural vegetative features. On a regional scale, green infrastructure is the preservation
and restoration of natural landscape features, such as forests, floodplains and wetlands,
coupled with policies such as infill and redevelopment that reduce overall
imperviousness in a watershed or ecoregion. On the local scale green infrastructure
consist of site and neighborhood specific practices and runoff reduction techniques.
Such practices essentially result in runoff reduction and or establishment of habitat
areas with significant utilization of soils, vegetation, and engineered media rather than
traditional hardscape collection, conveyance and storage structures. Some examples
include green roofs, trees and tree boxes, pervious pavement, rain gardens, vegetated
swales, planters, reforestation and protection and enhancement of riparian buffers and
floodplains.
Impervious Area (Cover) - means all impermeable surfaces that cannot effectively
infiltrate rainfall. This includes paved, concrete and gravel surfaces (i.e. parking lots,
driveways, roads, runways, and sidewalks); building rooftops, and miscellaneous
impermeable structures such as patios, pools, and sheds.
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Municipal Separate Storm Sewer (MS4) — a conveyance or system of conveyances
(including roads with drainage systems, municipal streets, catch basins, curbs, gutters,
ditches, man-made channels, or storm drains):
i. Owned or operated by a state, city, town, borough, county, parish, district,
association, or other public body (created by or pursuant to State law) having
jurisdiction over disposal of sewage, industrial wastes, stormwater, or other
wastes, including special districts under State law such as a sewer district,
flood control district or drainage district, or similar entity, or an Indian tribe or
an authorized Indian tribal organization, or a designated and approved
management agency under section 208 of the CWA that discharges to
surface waters of the State.
ii. Designed or used for collecting or conveying stormwater
iii. Which is not a combined sewer
iv. Which is not part of a Publicly Owned Treatment Works (POTW) as defined at
40 CFR 122.2.
Notice of Intent — a standardized format notification sent to the NYSDEC to inform
them of the proposed activity to be sent after the SWPPP has been completed.
Owner or Operator — means the person, persons or legal entity which owns or leases
the property on which the construction activity is occurring; and/or an entity that has
operational control over the construction plans and specifications, including the ability to
make modifications to the plans and specifications.
Post-Construction Stormwater Management Practices — permanent devices
constructed or installed onsite to treat stormwater from a site when construction is
completed.
Qualified Inspector - means a person that is knowledgeable in the principles and
practices of erosion and sediment control, such as a licensed Professional Engineer,
Certified Professional in Erosion and Sediment Control (CPESC), Registered
Landscape Architect, New York State Erosion and Sediment Control Certificate
Program holder or other Department endorsed individual(s). It can also mean someone
working under the direct supervision of, and at the same company as, the licensed
Professional Engineer or Registered Landscape Architect, provided that person has
training in the principles and practices of erosion and sediment control. Training in the
principles and practices of erosion and sediment control means that the individual
working under the direct supervision of the licensed Professional Engineer or
Registered Landscape Architect has received four (4) hours of Department endorsed
training in proper erosion and sediment control principles from a Soil and Water
Conservation District, or other Department endorsed entity. After receiving the initial
training, the individual working under the direct supervision of the licensed Professional
Engineer or Registered Landscape Architect shall receive four (4) hours of training
every three (3) years.
It can also mean a person that meets the Qualified Professional qualifications in
addition to the Qualified Inspector qualifications.
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Note: Inspections of any post-construction stormwater management practices that
include structural components, such as a dam for an impoundment, shall be performed
by a licensed Professional Engineer.
Qualified Professional — means a person that is knowledgeable in the principles and
practices of stormwater management and treatment, such as a licensed Professional
Engineer, Registered Landscape Architect or other Department endorsed individual(s).
Individuals preparing SWPPPs that require the post-construction stormwater
management practice component must have an understanding of the principles of
hydrology, water quality management practice design, water quantity control design,
and, in many cases, the principles of hydraulics. All components of the SWPPP that
involve the practice of engineering, as defined by the NYS Education Law (see Article
145) , shall be prepared by, or under the direct supervision of, a professional engineer
licensed to practice in the State of New York.
Regulated, Traditional Land Use Control MS4 - means a city, town, or village with
land use control authority that is required to gain coverage under New York State DEC's
SPDES General Permit for Stormwater Discharges from Municipal Separate
Stormwater Sewer Systems (MS4s).
Sequence of Operations — the individual steps and their specific order which are
undertaken in order to construct a project or a given phase of a project from beginning
to end. (i.e. clearing, grading, foundation work, landscaping, etc.)
State Pollutant Discharge Elimination System (SPDES) — means the system
established pursuant to Article 17 of the Environmental Conservation Law (ECL) and 6
NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the
state.
Stormwater Pollution Prevention Plan (SWPPP) - a report that is compiled providing
detailed information about the proposed activity and the specifics to how the stormwater
will be managed during construction and after construction is completed.
Surface Waters of the State - shall be construed to include lakes, bays, sounds,
ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes,
inlets, canals, the Atlantic Ocean, within the territorial seas of the state of New York and
all other bodies of surFace water, natural or artificial, inland or coastal, fresh or salt,
public or private (except those private waters that do not combine or effect a junction
with natural surFace or underground waters), which are wholly or partially within or
bordering the state or within its jurisdiction. Waters of the state are further defined in 6
NYCRR Parts 800-941.
Temporary Stabilization — means that exposed soil has been covered with material(s)
as set forth in the technical standard, New York Standards and Specifications for
Erosion and Sediment Control, to prevent the exposed soil from eroding. The materials
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can include, but are not limited to, mulch, seed and mulch, and erosion control mats
(e.g. jute twisted yarn, excelsior wood fiber mats).
Trained Contractor — means an employee from the contracting (construction)
company, identified in Part III.A.6., that has received four (4) hours of Department
endorsed Appendix A 47 training in proper erosion and sediment control principles from
a Soil and Water Conservation District, or other Department endorsed entity. After
receiving the initial training, the trained contractor shall receive four (4) hours of training
every three (3) years.
It can also mean an employee from the contracting (construction) company, identified in
Part III.A.6., that meets the qualified inspector qualifications (e.g. licensed Professional
Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered
Landscape Architect, New York State Erosion and Sediment Control Certificate
Program holder, or someone working under the direct supervision of, and at the same
company as, the licensed Professional Engineer or Registered Landscape Architect,
provided they have received four (4) hours of Department endorsed training in proper
erosion and sediment control principles from a Soil and Water Conservation District, or
other Department endorsed entity).
The trained contractor is responsible for the day to day implementation of the SWPPP.
G:\Proj-2015\201517_Saratoga Hospital_PUD Amendment Myrtle_St\201517Enviro\02SWPPP\201517_SWPPP.docx
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Appendix A
Notice of Intent
(NOI)
and
MS4 Acceptance Form
7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1
NOI for coverage under
Stormwater General Permit for
Construction Activity
version 1.30
(Submission #: HPA-DSEM-1T7P3, version 1)
Detai Is
Submission Alias Saratoga Hospital-Surgery Center
Originally Started By Brett Strom
Submission ID HPA-DSEM-1T7P3
Submission Reason New
Status Draft
Form Input
Owner/Operator Information
Owner/Operator Name (Company/Private Owner/Municipality/Agency/Institution,
etc.)
Saratoga Hospital
Owner/Operator Contact Person Last Name (NOT CONSULTANT)
Ronayne
Owner/Operator Contact Person First Name
Kevin
Owner/Operator Mailing Address
221 Church Street
City
Saratoga Springs
State
NY
https://nform-prod.dec.ny.gov/app/#/submissionwizard/2e3ed844-2184-4bce-a783-baee38802151/11 1/15
7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1
Zip
12866
Phone
518-587-3222
Email
kronayne@saratogacare.org
Federal Tax ID
14-1338547
Project Location
Project/Site Name
Saratoga Hospital- Myrtle Street
Street Address (Not P.O. Box)
Myrtle Street
Side of Street
North
City/TownNillage (THAT ISSUES BUILDING PERMIT)
Saratoga Springs
State
NY
Zip
12866
DEC Region
5
County
SARATOGA
Name of Nearest Cross Street
Morgan Street
Distance to Nearest Cross Street (Feet)
0
Project In Relation to Cross Street
North
Tax Map Numbers Section-Block-Parcel
165-1-37.2,165-1-37.1
https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 2/15
7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1
Tax Map Numbers
NONE PROVIDED
1. Coordinates
Provide the Geographic Coordinates for the project site. The two methods are:
- Navigate to the project location on the map (below) and click to place a marker and
obtain the XY coordinates.
- The "Find Me" button will provide the lat/long for the person filling out this form. Then pan
the map to the correct location and click the map to place a marker and obtain the XY
coordinates.
Navigate to your location and click on the map to get the X,Y coordinates
43.088712931360945,-73.79812930325481
Project Details
2. What is the nature of this project?
New Construction
3. Select the predominant land use for both pre and post development conditions.
Pre-Development Existing Landuse
Other: Medical Facility
Post-Development Future Land Use
Other: Medical Facility
3a. If Single Family Subdivision was selected in question 3, enter the number of
subdivision lots.
NONE PROVIDED
4. In accordance with the larger common plan of development or sale, enter the total
project site acreage, the acreage to be disturbed and the future impervious area
(acreage)within the disturbed area.
*** ROUND TO THE NEAREST TENTH OF AN ACRE. ***
Total Site Area (acres)
19.8
Total Area to be Disturbed (acres)
7.4
Existing Impervious Area to be Disturbed (acres)
0.7
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Future Impervious Area Within Disturbed Area (acres)
5.1
5. Do you plan to disturb more than 5 acres of soil at any one time?
No
6. Indicate the percentage (%) of each Hydrologic Soil Group(HSG) at the site.
A (%)
10
B (%)
0
C �%�
90
D (%)
0
7. Is this a phased project?
Yes
8. Enter the planned start and end dates of the disturbance activities.
Start Date
4/1/2022
End Date
12/1/2022
9. Identify the nearest surface waterbody(ies) to which construction site runoff will
discharge.
Putnam Brook
9a. Type of waterbody identified in question 9?
Stream/Creek Off Site
Other Waterbody Type Off Site Description
NONE PROVIDED
9b. If"wetland" was selected in 9A, how was the wetland identified?
NONE PROVIDED
10. Has the surface waterbody(ies in question 9 been identified as a 303(d) segment
in Appendix E of GP-0-20-001?
No
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11. Is this project located in one of the Watersheds identified in Appendix C of GP-O-
20-001?
No
12. Is the project located in one of the watershed areas associated with AA and AA-
S classified waters?
No
If No, skip question 13.
13. Does this construction activity disturb land with no existing impervious cover
and where the Soil Slope Phase is identified as an E or F on the USDA Soil Survey?
NONE PROVIDED
If Yes, what is the acreage to be disturbed?
NONE PROVIDED
14. Will the project disturb soils within a State regulated wetland or the protected
100 foot adjacent area?
No
15. Does the site runoff enter a separate storm sewer system (including roadside
drains, swales, ditches, culverts, etc)?
Yes
16. What is the name of the municipality/entity that owns the separate storm sewer
system?
City of Saratoga Springs
17. Does any runoff from the site enter a sewer classified as a Combined Sewer?
No
18. Will future use of this site be an agricultural property as defined by the NYS
Agriculture and Markets Law?
No
19. Is this property owned by a state authority, state agency, federal government or
local government?
No
20. Is this a remediation project being done under a Department approved work
plan? (i.e. CERCLA, RCRA, Voluntary Cleanup Agreement, etc.)
No
Required SWPPP Components
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21. Has the required Erosion and Sediment Control component of the SWPPP been
developed in conformance with the current NYS Standards and Specifications for
Erosion and Sediment Control (aka Blue Book)?
Yes
22. Does this construction activity require the development of a SWPPP that
includes the post-construction stormwater management practice component (i.e.
Runoff Reduction, Water Quality and Quantity Control practices/techniques)?
Yes
If you answered No in question 22, skip question 23 and the Post-construction
Criteria and Post-construction SMP Identification sections.
23. Has the post-construction stormwater management practice component of the
SWPPP been developed in conformance with the current NYS Stormwater
Management Design Manual?
Yes
24. The Stormwater Pollution Prevention Plan (SWPPP) was prepared by:
Professional Engineer (P.E.)
SWPPP Preparer
The LA Group
Contact Name (Last, Space, First)
Strom, Brett
Mailing Address
40 Long Alley
City
Saratoga Springs
State
NY
Zip
12866
Phone
5185878100
Email
bstrom @thelagroup.com
Download SWPPP Preparer Certification Form
Please take the following steps to prepare and upload your preparer certification form:
1) Click on the link below to download a blank certification form
2) The certified SWPPP preparer should sign this form
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3) Scan the signed form
4) Upload the scanned document
Download SWPPP Preparer Certification Form
Please upload the SWPPP Preparer Certification
SH Surgery Center Preparer Form.pdf - 09/1 7/201 9 03:29 PM
Comment
NONE PROVIDED
Erosion & Sediment Control Criteria
25. Has a construction sequence schedule for the planned management practices
been prepared?
Yes
26. Select all of the erosion and sediment control practices that will be employed on
the project site:
Temporary Structural
Dust Control
Silt Fence
Stabilized Construction Entrance
Biotechnical
None
Vegetative Measures
Mulching
Seeding
Permanent Structural
Rock Outlet Protection
Other
NONE PROVIDED
Post-Construction Criteria
* IMPORTANT: Completion of Questions 27-39 is not required if response to
Question 22 is No.
27. Identify all site planning practices that were used to prepare the final site
plan/layout for the project.
Reduction of Clearing and Grading
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27a. Indicate which of the following soil restoration criteria was used to address the
requirements in Section 5.1.6("Soil Restoration") of the Design Manual (2010
version).
All disturbed areas will be restored in accordance with the Soil Restoration requirements in
Table 5.3 of the Design Manual (see page 5-22).
28. Provide the total Water Quality Volume (WQv) required for this project (based on
final site plan/layout). (Acre-feet)
0.407
29. Post-construction SMP Identification
Use the Post-construction SMP Identification section to identify the RR techniques (Area
Reduction), RR techniques(Volume Reduction) and Standard SMPs with RRv Capacity
that were used to reduce the Total WQv Required (#28).
Identify the SMPs to be used by providing the total impervious area that contributes runoff
to each technique/practice selected. For the Area Reduction Techniques, provide the total
contributing area (includes pervious area) and, if applicable, the total impervious area that
contributes runoff to the technique/practice.
Note: Redevelopment projects shall use the Post-Construction SMP Identification section
to identify the SMPs used to treat and/or reduce the WQv required. If runoff reduction
techniques will not be used to reduce the required WQv, skip to question 33a after
identifying the SMPs.
30. Indicate the Total RRv provided by the RR techniques (Areallolume Reduction)
and Standard SMPs with RRv capacity identified in question 29. (acre-feet)
0.305
31. Is the Total RRv provided (#30) greater than or equal to the total WQv required
(#28)?
No
If Yes, go to question 36. If No, go to question 32.
32. Provide the Minimum RRv required based on HSG. [Minimum RRv Required =
(P) (0.95) (Ai) / 12, Ai=(s) (Aic)] (acre-feet)
0.127
32a. Is the Total RRv provided (#30) greater than or equal to the Minimum RRv
Required (#32)?
Yes
If Yes, go to question 33.
Note: Use the space provided in question #39 to summarize the specific site limitations
and justification for not reducing 100% of WQv required (#28). A detailed evaluation of the
specific site limitations and justification for not reducing 100% of the WQv required (#28)
must also be included in the SWPPP.
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If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP
preparer must modify design to meet sizing criteria.
33. SMPs
Use the Post-construction SMP Identification section to identify the Standard SMPs and, if
applicable, the Alternative SMPs to be used to treat the remaining total WQv (=Total WQv
Required in #28 - Total RRv Provided in #30).
Also, provide the total impervious area that contributes runoff to each practice selected.
NOTE: Use the Post-construction SMP Identification section to identify the SMPs used on
Redevelopment projects.
33a. Indicate the Total WQv provided (i.e. WQv treated) by the SMPs identified in
question #33 and Standard SMPs with RRv Capacity identified in question #29.
(acre-feet)
.137
Note: For the standard SMPs with RRv capacity, the WQv provided by each practice = the
WQv calculated using the contributing drainage area to the practice - provided by the
practice. (See Table 3.5 in Design Manual)
34. Provide the sum of the Total RRv provided (#30) and the WQv provided (#33a).
.442
35. Is the sum of the RRv provided (#30) and the WQv provided (#33a) greater than
or equal to the total WQv required (#28)?
Yes
If Yes, go to question 36.
If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP
preparer must modify design to meet sizing criteria.
36. Provide the total Channel Protection Storage Volume (CPv required and
provided or select waiver (#36a), if applicable.
CPv Required (acre-feet)
NONE PROVIDED
CPv Provided (acre-feet)
NONE PROVIDED
36a. The need to provide channel protection has been waived because:
Reduction of the total CPv is achieved on site through runoff reduction techniques or
infiltration systems.
37. Provide the Overbank Flood (Qp) and Extreme Flood (Qf) control criteria or
select waiver (#37a), if applicable.
Overbank Flood Control Criteria (Qp)
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Pre-Development (CFS)
33.0
Post-Development (CFS)
22.05
Total Extreme Flood Control Criteria (Qf)
Pre-Development (CFS)
77.93
Post-Development (CFS)
58.07
37a. The need to meet the Qp and Qf criteria has been waived because:
NONE PROVIDED
38. Has a long term Operation and Maintenance Plan for the post-construction
stormwater management practice(s) been developed?
Yes
If Yes, Identify the entity responsible for the long term Operation and Maintenance
Saratoga Hospital
39. Use this space to summarize the specific site limitations and justification for not
reducing 100% of WQv required (#28). (See question #32a) This space can also be
used for other pertinent project information.
100% of the WQv could not be reduced due to shallow depths to bedrock.
Post-Construction SMP Identification
Runoff Reduction (RR) Techniques, Standard Stormwater Management Practices
(SMPs) and Alternative SMPs
Identify the Post-construction SMPs to be used by providing the total impervious area that
contributes runoff to each technique/practice selected. For the Area Reduction
Techniques, provide the total contributing area (includes pervious area) and, if applicable,
the total impervious area that contributes runoff to the technique/practice.
RR Techniques (Area Reduction)
Round to the nearest tenth
Total Contributing Acres for Conservation of Natural Area (RR-1)
NONE PROVIDED
Total Contributing Impervious Acres for Conservation of Natural Area (RR-1)
NONE PROVIDED
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Total Contributing Acres for SheetFlow to Riparian Buffers/Filter Strips (RR-2)
NONE PROVIDED
Total Contributing Impervious Acres for Sheetflow to Riparian Buffers/Filter Strips
(RR-2)
NONE PROVIDED
Total Contributing Acres for Tree Planting/Tree Pit (RR-3)
NONE PROVIDED
Total Contributing Impervious Acres for Tree Planting/Tree Pit (RR-3)
NONE PROVIDED
Total Contributing Acres for Disconnection of Rooftop Runoff(RR-4)
NONE PROVIDED
RR Techniques (Volume Reduction)
Total Contributing Impervious Acres for Disconnection of Rooftop Runoff(RR-4)
NONE PROVIDED
Total Contributing Impervious Acres for Vegetated Swale (RR-5)
NONE PROVIDED
Total Contributing Impervious Acres for Rain Garden (RR-6)
NONE PROVIDED
Total Contributing Impervious Acres for Stormwater Planter (RR-7)
NONE PROVIDED
Total Contributing Impervious Acres for Rain Barrel/Cistern (RR-8)
NONE PROVIDED
Total Contributing Impervious Acres for Porous Pavement (RR-9)
NONE PROVIDED
Total Contributing Impervious Acres for Green Roof(RR-10)
0.5
Standard SMPs with RRv Capacity
Total Contributing Impervious Acres for Infiltration Trench (I-1)
NONE PROVIDED
Total Contributing Impervious Acres for Infiltration Basin (I-2)
0.5
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Total Contributing Impervious Acres for Dry Well (I-3)
NONE PROVIDED
Total Contributing Impervious Acres for Underground Infiltration System (I-4)
1.5
Total Contributing Impervious Acres for Bioretention (F-5)
0.9
Total Contributing Impervious Acres for Dry Swale (O-1)
NONE PROVIDED
Standard SMPs
Total Contributing Impervious Acres for Micropool Extended Detention (P-1)
NONE PROVIDED
Total Contributing Impervious Acres for Wet Pond (P-2)
NONE PROVIDED
Total Contributing Impervious Acres for Wet Extended Detention (P-3)
NONE PROVIDED
Total Contributing Impervious Acres for Multiple Pond System (P-4)
NONE PROVIDED
Total Contributing Impervious Acres for Pocket Pond (P-5)
1.2
Total Contributing Impervious Acres for SurFace Sand Filter (F-1)
NONE PROVIDED
Total Contributing Impervious Acres for Underground Sand Filter (F-2)
NONE PROVIDED
Total Contributing Impervious Acres for Perimeter Sand Filter (F-3)
NONE PROVIDED
Total Contributing Impervious Acres for Organic Filter (F-4)
NONE PROVIDED
Total Contributing Impervious Acres for Shallow Wetland (W-1)
NONE PROVIDED
Total Contributing Impervious Acres for Extended Detention Wetland (W-2)
NONE PROVIDED
Total Contributing Impervious Acres for Pond/Wetland System (W-3)
NONE PROVIDED
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Total Contributing Impervious Acres for Pocket Wetland (W-4)
NONE PROVIDED
Total Contributing Impervious Acres for Wet Swale (O-2)
NONE PROVIDED
Alternative SMPs (DO NOT INCLUDE PRACTICES BEING USED FOR
PRETREATMENT ONLY)
Total Contributing Impervious Area for Hydrodynamic
NONE PROVIDED
Total Contributing Impervious Area for Wet Vault
NONE PROVIDED
Total Contributing Impervious Area for Media Filter
NONE PROVIDED
"Other" Alternative SMP?
NONE PROVIDED
Total Contributing Impervious Area for "Other"
NONE PROVIDED
Provide the name and manufaturer of the alternative SMPs (i.e. proprietary
practice(s)) being used for WQv treatment.
Note: Redevelopment projects which do not use RR techniques, shall use questions
28, 29, 33 and 33a to provide SMPs used, total WQv required and total WQv
provided for the project.
Manufacturer of Alternative SMP
NONE PROVIDED
Name of Alternative SMP
NONE PROVIDED
Other Permits
40. Identify other DEC permits, existing and new, that are required for this
project/facility.
None
If SPDES Multi-Sector GP, then give permit ID
NONE PROVIDED
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If Other, then identify
NONE PROVIDED
41. Does this project require a US Army Corps of Engineers Wetland Permit?
No
If"Yes," then indicate Size of Impact, in acres, to the nearest tenth
NONE PROVIDED
42. If this NOI is being submitted for the purpose of continuing or transferring
coverage under a general permit for stormwater runoff from construction activities,
please indicate the former SPDES number assigned.
NONE PROVIDED
MS4 SWPPP Acceptance
43. Is this project subject to the requirements of a regulated, traditional land use
control MS4?
Yes - Please attach the MS4 Acceptance form below
If No, skip question 44
44. Has the "MS4 SWPPP Acceptance" form been signed by the principal executive
officer or ranking elected official and submitted along with this NOI?
NONE PROVIDED
MS4 SWPPP Acceptance Form Download
Download form from the link below. Complete, sign, and upload.
MS4 SWPPP Acceptance Form
MS4 Acceptance Form Upload
SH Surgery Center MS4 Acceptance Signed.pdf- 09/17/2019 03:40 PM
Comment
NONE PROVIDED
Owner/Operator Certification
Owner/Operator Certification Form Download
Download the certification form by clicking the link below. Complete, sign, scan, and
upload the form.
Owner/Operator Certification Form (PDF, 45KB),
Upload Owner/Operator Certification Form
SH-Sugery Center Owner Form.pdf - 09/1 7/201 9 03:30 PM
Comment
NONE PROVIDED
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Attachments
Date Attachment Name Context User
9/1 7/201 9 3:40 SH Surgery_Center MS4 Acceptance Brett
PM Signed.pdf Attachment Strom
9/1 7/201 9 3:30 SH-Sugery_Center Owner Form.pdf Attachment Brett
PM — Strom
9/1 7/201 9 3:29 SH Surgery_Center Preparer Form.pdf Attachment Brett
PM — — Strom
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Appendix B
Stormwater Management Report
Hydro CAD
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Stormwater Management Report
for:
Saratoga Hospital
at
Myrtle Street
Saratoga Springs, NY 12866
Saratoga County
Owner/Operator(s):
Saratoga Hospital
221 Church Street
Saratoga Springs, NY 12866
Contact: Kevin Ronayne
(518) 580-2452
SWM Report Contact(s):
The LA Group, PC
40 Long Alley
Saratoga Springs, NY 12866
1-518-587-8100
Project No. 201517
Preparation Date:
July 22, 2021
Stormwater Management Report Saratoga Hospital- Myrtle Street
201517
Table of Contents
1.0 INTRODUCTION.................................................................................................................4
2.0 PROJECT DESCRIPTION.................................................................................................4
2.1 SITE LOCATION....................................................................................................................4
2.2 PROJECT DESCRIPTION.........................................................................................................4
2.3 SOIL CONDITIONS/SOIL TESTING .........................................................................................4
2.4 CURVE NUMBERS AND RAINFALL DATA..............................................................................4
3.0 EXISTING CONDITIONS..................................................................................................5
4.0 PROPOSED CONDITIONS................................................................................................5
5.0 NYSDEC DESIGN CRITERIA...........................................................................................6
S.1 SITE PLANNING TO PRESERVE NATURAL FEATURES............................................................6
5.2 WATER QUALITY VOLUME�WQV�......................................................................................8
5.3 RUNOFF REDUCTION VOLUME�RRV�..................................................................................9
5.4 CHANNEL PROTECTION VOLUME�CPV� ............................................................................10
S.S OVERBANK FLOOD�QP�AND EXTREME FLOOD�QF�ATTENUATION.................................11
6.0 PROPOSED STORMWATER FACILITIES.................................................................11
6.1 PRETREATMENT.................................................................................................................11
6.2 TREATMENT.......................................................................................................................11
7.0 POST-CONSTRUCTION MAINTENANCE REQUIREMENTS................................12
7.0 REFERENCES...................................................................................................................13
Stormwater Management Report Saratoga Hospital- Myrtle Street
201517
Attachment
A SoilInvestigations
Soil Survey
Natural Resource Map
B Existing Conditions Watershed Map and HydroCAD Calculations
C Proposed Conditions Watershed Map, HydroCAD Calculations & Frozen
Conditions
D Storm Data
Stormwater Management Report Saratoga Hospital- Myrtle Street
201517
1.0 INTRODUCTION
The following is a Stormwater Management Report (SWM Report) developed for the Operator,
NRP Holdings, LLC, for the Tait Lane Reserve, herein referred to as the"Proj ect." It is prepared
in accordance with the New York State Department of Environmental Conservation (NYSDEC)
Stormwater Management Design Manual, dated January, 2015.
The Project has been designed in accordance with Chapter 4 of the NYSDEC Stormwater
Management Design Manual (SWMDM), and NYSDEC's General Permit GP-0-20-001 for
construction activities. Stormwater calculations were performed utilizing widely accepted
engineering methodologies, including TR-55, and the stormwater modeling computer program
HydroCAD (version 10.00)produced by HydroCAD Software Solutions, LLC.
2.0 PROJECT DESCRIPTION
21 Site Location
The Project is located off Myrtle Street and Morgan Street in Saratoga Springs, Saratoga County,
NY 12866. Access to the site is off Myrtle Street and Morgan Street.
2.2 Project Description
The Project includes the construction of a four (4) story medical building. The remainder of the
proposed site improvements includes construction of a parking lot, site lighting, landscaping,
stormwater controls, and connections to the municipal water and sewer. The Project Site
represents the area that will be disturbed as a result of the Project. The project is considered a
new developmentprojectper Chapters 4 of the SWMDM. The Project Site represents the area
that will be disturbed as a result of the Project.
2.3 Soil Conditions/Soil Testing
According to the Natural Resources Conservation Service (NRCS) Web Soil Survey, the area
surrounding the Project Site is comprised of Deerfield loamy fine sand, Galway loam and
Windsor loamy sand. The hydrological soil group classi�cations for the soils are `A', `C' and
`A' respectively.
2.4 Curve Numbers and Rainfall Data
The surface cover for the project area is grass, woods and an impervious driveway. The curve
numbers utilized in the modeling were assigned based on cover type and HSG soil classification.
V
The LA GROUP
Landscape Ar_h'i[ecture!ff tng'ineering P L 4
Stormwater Management Report Saratoga Hospital- Myrtle Street
201517
The design storms used for the pre-development versus post-development comparison were the
1, 10, and 100-year, 24-hour duration, SCS Type II events. The rainfall amounts for these
storms are 2.15, 3.75, and 6.20 inches, respectively.
3.0 EXISTING CONDITIONS
The Project area existing condition, for which this stormwater management plan is based,
consists of grass and woods. Under the watershed's existing condition, the majority of the
runoff from the site flows offsite to the south and west. A total of�ve (5) analysis points were
used to utilized in comparing all pre- versus post-runoff conditions. Refer to drawing "W-1
Existing Conditions Watershed Map," located in Attachment B for more information.
Table 3-1 below provides a summary of the existing conditions peak discharge rates for the
Project's watershed.
Table 3-1
Existin Conditions Peak Dischar e Rates
Analysis AP-1 AP-2 AP-3 AP-4 AP-5
Point
Design Storm (cfs) (cfs) (cfs) (cfs) (cfs)
10-Year 725 4.54 7.40 12.90 0.91
100-Year 16.92 10.96 16.73 3120 2.12
Refer to Attachment B for more information on the existing conditions watershed modeling.
4.0 PROPOSED CONDITIONS
Under the watershed's Proposed Condition, stormwater from the Project will continue to
discharge to the same points as in the Existing Condition (Analysis Points 1-5). The total
watershed has generally remained unchanged, as is shown on the drawing "W-2 Proposed
Conditions Watershed Map" contained in Attachment C. To meet NYSDEC requirements (see
Section 5.0 NYSDEC Design Criteria of this report) a pocket pond, underground infiltration
chambers, in�ltration basin, green roof and a bioretention basin have been incorporated into the
stormwater management design to mitigate the quality and quantity of stormwater runoff
discharged from the Project Site.
Table 4-1 below provides a summary of the existing conditions versus proposed conditions peak
discharge rates for the Project's watershed.
�
The LA GROUP
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Stormwater Management Report Saratoga Hospital- Myrtle Street
201517
Table 4-1
Existin Conditions Versus Pro osed Conditions Peak Dischar e Rates
Analysis AP-1 AP-2 AP-3 AP-4 AP-5
Point
EXisting Proposed Existing Proposed Existing Proposed EXisting Proposed Existing Proposed
Design Storm (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs)
10-Year 7.25 4.62 4.54 2.96 7.40 3.16 12.90 10.49 091 0.82
100-Year 16.92 9.81 10.96 7.14 16.73 13.76 31.20 25.43 2.12 1.93
Refer to Attachment C for more information on the proposed conditions watershed modeling.
5.0 NYSDEC DESIGN CRITERIA
The New York State Stormwater Management Design Manual, dated January 2015 (The
Manual) has been utilized to develop the stormwater management plan. The Manual includes a
five-step process that involves site planning and stormwater management practice selection. The
five steps include;
• Site planning to preserve natural features and reduce impervious cover,
• Calculation of the Water Quality Volume (WQv) for the Site,
• Incorporation of green infrastructure techniques and standard SMPs with Runoff
Reduction Volume (RRv) capacity,
• Use of standard SMPs where applicable, to treat the portion of WQv not addressed by
green infrastructure techniques and standard SMPs with RRv capacity, and
• Design of volume and peak rate control (where required)
The approach of the stormwater management plan was to address the stormwater requirements
separately. The five steps were reduced to Site Planning to Preserve Natural Features, Water
Quality Volume, Runoff Reduction Volume, Channel Protection Volume, and Overbank Flood
and Extreme Storm Attenuation, as discussed in the following sections.
Attachment D of this report contains detailed calculations for determining and summarizing the
required and provided volumes for Water Quality and Runoff Reduction. In general, the required
design criteria (WQv and RRv) were calculated for all areas where site disturbance or green
infrastructure techniques are proposed.
5.1 Site Planning to Preserve Natural Features
Within Chapter 3 of The Manual, Table 3.1 Green Infrastructure Planning General Categories
and Specific Practices includes a list of planning practices utilized in the planning and design of
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a project. There are two categories, Preservation of Natural Resources and Reduction of
Imperious Cover.
Preservation of Natural Resources includes:
• Preservation of Undisturbed Areas
• Preservation of Buffers
• Reduction of Clearing and Grading
• Locating Development in Less Sensitive Areas
• Open Space Design
• Soil Restoration
Reduction of Impervious Cover includes:
• Roadway Reduction
• Sidewalk Reduction
• Driveway Reduction
• Cul-de-sac Reduction
• Building Footprint Reduction
• Parking Reduction
A Natural Resource Map for Green Infrastructure Planning has been developed which indicates
natural resource areas and critical environmental areas to be protected (where feasible). As
required in Section 3.6 of The Manual, the map includes (where applicable):
• Jurisdictional Wetlands
o There are no wetlands located near the project site.
• Waterways
o No waterways are impacted by the Project.
• Wetland Adjacent Area
o There are no wetlands located near the project site.
• Floodplains
o The project is not within the flood plain.
• Forest, vegetative cover
o Project is designed to maintain as much of the woods as feasible.
• Topography/Steep slopes
o There are no steep slopes located throughout the project.
• Existing soils, including hydrologic soil groups and soil erodibility
o See Section 23 of this Report.
• Drainage Patterns
o See Section 3.0 of this Report.
• Bedrock/Significant geological features
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o See Section 23 of this Report.
The Natural Resource Plan indicates the areas to be avoided and depicts the area most suitable
for development.
5.2 Water Quality Volume (WQv)
The Water Quality Volume (WQv) requirement is designed to improve water quality sizing to
capture and treat 90% of the average annual stormwater runoff volumes. The WQv is directly
related to the amount of impervious cover created at a site. The following equation is used to
determine the water quality storage volume.
Offsite work will be completed in accordance with Table 1 in Appendix B of the NYSDEC
General Permit (GP-0-20-001) for which the construction of walking paths only require erosion
and sediment control.
WQv = P Rv A
12
Where:
WQv = Water quality volume (acre/feet)
P = 90% Rainfall Event(1.15" for Saratoga Springs)
Rv = 0.05 + 0.009(� where I is percent impervious cover
A = Site area in acres
The required WQv will be provided by a pocket pond, underground infiltration chambers,
infiltration basin, green roof and a bioretention basin designed in accordance with the SWMDM.
The total required WQv for the project is 0.407 ao-ft. Refer to Table 5-1 for a summary of the
provided water quality volumes for the Project.
Table 5-1
Water Qualit Volume Qv Summar
SMP Type Provided
(ac-ft)
SMP1 Green Roof 0.046
SMP2 Infiltration Basin 0.059
SMP3 Bioretention Basin 0.086
SMP4 Underground Infiltration Chambers 0.136
SMPS Pocket Pond 0.115
TOTAL 0.442
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Refer to Attachment D for detailed WQv calculations.
5.3 Runoff Reduction Volume (RRv)
Section 4.3 of the Manual states, "Runoff reduction shall be achieved by infiltration,
groundwater recharge, reuse, recycle, evaporation/evapotranspiration of 100 percent of the post-
development water quality volumes to replicate pre-development hydrology by maintaining pre-
construction infiltration, peak runoff flow, discharge volume, as well as minimizing concentrated
flow by using runoff control techniques to provide treatment in a distributed manner before
runoff reaches the collection system."
The Project does not reduce 100% runoff reduction of the on-site WQv of the project. Utilizing
green infrastructure and stormwater management practices with RRv capabilities throughout the
project an RRv of 0.305 acre-feet is provided which is greater than the minimum required RRv
of 0.127 acre-feet . See Table 5-2 for a summary of the provided runoff reduction volumes for
each green infrastructure practice.
Table 5-2
Runoff Reduction Volume RRv Summar
SMP Provided
(ac-ft)
531 Conservation ofNatural Areas -
5.32 Sheetflow to Riparian Buffers/Filter Strips -
5.3.3 Vegetated Open Swales -
5.3.4 Tree Planting/Tree Box -
5.3.5 Disconnection of Rooftop Runoff -
5.3.6 Stream Daylighting -
5.3.7 Rain Garden -
5.3.8 Green Roof 0.046
5.3.9 Stormwater Planters -
5.3.10 Rain Tanks/Cisterns -
5.3.11 Porous Pavement -
Underground Infiltration Chambers 0.136
Infiltration Basin 0.059
Bioretention Basin 0.064
TOTAL 0.305 (ac-ft)
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The provided volume is less than the Water Quality Volume. As part of the stormwater
management plan, the following green infrastructure planning and design options were evaluated
and the corresponding specific site limitations:
• 5.3.1 Conservation of Natural Areas
o Conservation areas is notproposed as there is insuf�cient area.
• 5.3.2 Sheetflow to Riparian Buffers/Filter Strips
o Sheetflow to riparian buffers is not proposed as there are insuf�cient filter areas.
• 5.3.3 Vegetated Open Swales
o A vegetated swale is used as part of this project but credit is not taked due to the
low RRv credit(<0.001 ao-ft).
• 5.3.4 Tree Planting/Tree Box
o Tree plantings have been proposed throughout the site but credit is not taken due
to the low RRv credit(<0.001 ao-ft)provided.
• 5.3.5 Disconnection of Rooftop Runoff
o Rooftop disconnection is not proposed as part of the project as the contributing
roof area exceeds maximum requirement and a green roof is proposed.
• 5.3.6 Stream Daylighting
o All subsurface storm sewer piping will be daylighted as soon as possible.
• 5.3.7 Rain Garden
o Rain gardens are typically applied for residential applications. The contributing
drainage areas of project components exceed the maximum contributing area of
1,000 sf(for a rain garden), specified in The Manual.
• 5.3.8 Green Roof
o A green roof is proposed as part of this project.
• 5.3.9 Stormwater Planters
o Stormwater planters are not proposed as part of this project due to poor existing
soils.
• 5.3.10 Rain Tanks/Cisterns
o Rain tanks/cisterns are not financially feasible.
• 5.3.11 Porous Pavement
o Porous pa�ement is not proposed due to locations of shallow depth to bedrock.
Refer to Attachment D for detailed RRv calculations.
5.4 Channel Protection Volume (CPv)
The channel protection volume is reduced through the use of green infrastructure practices
(bioretention basin, in�ltration basin, underground infiltration chambers, green roof�. The
provided channel protection volume is equal to runoff reduction provided by the green
infrastructure practices. The provided channel protection volume (0305 ao-ft) is greater than the
required channel protection volume of 0.100 ac-ft.
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5.5 Overbank Flood (Qp) and Extreme Flood (Qf�Attenuation
The primary purpose of the Overbank Flood (Qp) control sizing criterion is to prevent an
increase in the frequency and magnitude of out-of-bank flooding generated by urban
development. It requires storage and attenuation of the 10-year, 24-hour storm to ensure post-
development peak discharge rates do not exceed the pre-development condition.
The intent of the Extreme Flood (Qf� criteria is to (a)prevent the increased risk of flood damage
from large storm events, (b) maintain the boundaries of the pre-development 100-year
floodplain, and (c)protect the physical integrity of stormwater management practices. It requires
storage and attenuation of the 100-year, 24-hour storm to ensure post-development peak
discharge rates do not exceed the pre-development condition.
During the 10-year and 100-year 24-hour storm the post-development peak discharge rates do
not exceed the pre-development rates. See Table 4-1 of this Report for detailed comparison of
pre- and post-development peak rates.
6.0 PROPOSED STORMWATER FACILITIES
The Project is proposing the installation a pocket pond, underground in�ltration chambers,
infiltration basin, green roof and a bioretention basin to address stormwater requirements for the
project. The stormwater facilities have been indicated on the plans and HydroCAD reports as
SMP-1 through SMP-5. SMP-1 is a green roof located on the main building will treat roof
runoff. SMP-2 is the infiltration basin located to the north of the parking lot and runoff from the
parking lot. SMP-3 is a bioretention basin located in the center of the site that will treat parking
lot runoff. SMP-4 are underground infiltration chambers located to the east of the main building
and will treat parking lot runoff. SMP-5 is a pocket pond located to the west of the main building
and will treat parking lot and roadway runoff.
61 Pretreatment
Pretreatment of runoff for SMP-2 and SMP-3 is provided by hydrodynamic separators. SMP-4
uses an isolator row to pretreat runoff prior to stormwater reaching the other chambers. SMP-5
uses forebays to pretreat runoff prior to discharging into the pocket pond.
6.2 Treatment
Treatment for runoff entering in infiltration basin and underground in�ltration chambers is
provided by capturing and treating the entire WQv though in�ltration into the underlying soils.
Treated of runoff entering the green roof and bioretention basin is treated by infiltration
stormwater through the soil media prior to discharge. Treatment of runoff entering the pocket
pond is treated by attenuating the full WQv within the permanent pool. The total storage is the
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volume within the pond below the invert of the outlet control structure as well as the storage
within the forebay below the overflow weirs.
7.0 POST-CONSTRUCTION MAINTENANCE REQUIREMENTS
Saratoga Hospital will be responsible for the continuous upkeep and maintenance of all
stormwater management facilities. Maintenance includes, but is not limited to, cleaning of
sediment from drainage inlet sumps, removal of sediment from SMPs, cleaning conveyance
piping and channels of obstructions, inspection and repair as required of any outlet control
mechanisms, and repairing any other detriments in the design that is resulting in the facilities to
not function as intended in the design.
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7.0 REFERENCES
1. Urban Hydrology for Small Watersheds. Published by the U.S. Soil Conservation
Service, Washington, D.C., June 1986.
2. HydroCAD 10.00 Computer Program, by HydroCAD Software Solutions, LLC.
3. NYSDEC Stormwater Management Design Manual. Published by the New York State
Department of Environmental Conservation, Updated January 2015.
G:�Proj-2015\201517_Saratoga Hospital_PUD Amendment Myrtle_St\201517Enviro\02SWPPP\201517_SWM Report.doc
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Attachment A
Soil Investigations
Soil Survey
Natural Resource Map
�JSp/� United States A product ofthe National Custom Soil Resource
= Department of Cooperative Soil Survey,
Agriculture a joint effort of the United Report for
n I ��� States Department of
IV Agriculture and other S a rato g a
Federal agencies, State
Natural agencies including the
Resources Agricultural Experiment �O u ���' ���
Conservation Stations, and local
Service participants
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,
July 9, 2021
P reface
Soil surveys contain information that affects land use planning in survey areas.
They highlight soil limitations that affect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for
many different users, including farmers, ranchers, foresters, agronomists, urban
planners, community officials, engineers, developers, builders, and home buyers.
Also, conservationists, teachers, students, and specialists in recreation, waste
disposal, and pollution control can use the surveys to help them understand,
protect, or enhance the environment.
Various land use regulations of Federal, State, and local governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the effects of
soil limitations on various land uses. The landowner or user is responsible for
identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onsite investigation is needed to supplement this information in some
cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/
portal/nres/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https://offices.sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil
Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/?
cid=nres142p2_053951).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads. Clayey or wet soils are poorly suited to use as
septic tank absorption fields. A high water table makes a soil poorly suited to
basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (NRCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Web Soil Survey, the site for official soil survey information.
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its
programs and activities on the basis of race, color, national origin, age, disability,
and where applicable, sex, marital status, familial status, parental status, religion,
sexual orientation, genetic information, political beliefs, reprisal, or because all or a
part of an individual's income is derived from any public assistance program. (Not
all prohibited bases apply to all programs.) Persons with disabilities who require
2
alternative means for communication of program information (Braille, large print,
audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of
Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or
call (800) 795-3272 (voice) or(202) 720-6382 (TDD). USDA is an equal opportunity
provider and employer.
3
Contents
Preface....................................................................................................................2
How Soil Surveys Are Made..................................................................................5
SoilMap.................................................................................................................. 8
SoilMap................................................................................................................9
Legend................................................................................................................10
MapUnit Legend................................................................................................ 11
MapUnit Descriptions.........................................................................................11
Saratoga County, New York............................................................................13
DeB—Deerfield loamy fine sand, 3 to 8 percent slopes..............................13
GaC—Galway loam, 8 to 15 percent slopes............................................... 14
WnB—Wndsor loamy sand, 3 to 8 percent slopes.....................................15
References............................................................................................................18
4
How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous
areas in a specific area. They include a description of the soils and miscellaneous
areas and their location on the landscape and tables that show soil properties and
limitations affecting various uses. Soil scientists observed the steepness, length,
and shape of the slopes; the general pattern of drainage; the kinds of crops and
native plants; and the kinds of bedrock. They observed and described many soil
profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The
profile extends from the surface down into the unconsolidated material in which the
soil formed or from the surface down to bedrock. The unconsolidated material is
devoid of roots and other living organisms and has not been changed by other
biological activity.
Currently, soils are mapped according to the boundaries of major land resource
areas (MLRAs). MLRAs are geographically associated land resource units that
share common characteristics related to physiography, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey
areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that
is related to the geology, landforms, relief, climate, and natural vegetation of the
area. Each kind of soil and miscellaneous area is associated with a particular kind
of landform or with a segment of the landform. By observing the soils and
miscellaneous areas in the survey area and relating their position to specific
segments of the landform, a soil scientist develops a concept, or model, of how they
were formed. Thus, during mapping, this model enables the soil scientist to predict
with a considerable degree of accuracy the kind of soil or miscellaneous area at a
specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented
by an understanding of the soil-vegetation-landscape relationship, are sufficient to
verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them
to identify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character
of soil properties and the arrangement of horizons within the profile. After the soil
5
Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additional data based on experience and
research.
The objective of soil mapping is not to delineate pure map unit components; the
objective is to separate the landscape into landforms or landform segments that
have similar use and management requirements. Each map unit is defined by a
unique combination of soil components and/or miscellaneous areas in predictable
proportions. Some components may be highly contrasting to the other components
of the map unit. The presence of minor components in a map unit in no way
diminishes the usefulness or accuracy of the data. The delineation of such
landforms and landform segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, onsite
investigation is needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale of
mapping, intensity of mapping, design of map units, complexity of the landscape,
and experience of the soil scientist. Observations are made to test and refine the
soil-landscape model and predictions and to verify the classification of the soils at
specific locations. Once the soil-landscape model is refined, a significantly smaller
number of ineasurements of individual soil properties are made and recorded.
These measurements may include field measurements, such as those for color,
depth to bedrock, and texture, and laboratory measurements, such as those for
content of sand, silt, clay, salt, and other components. Properties of each soil
typically vary from one point to another across the landscape.
Observations for map unit components are aggregated to develop ranges of
characteristics forthe components. The aggregated values are presented. Direct
measurements do not exist for every property presented for every map unit
component. Values for some properties are estimated from combinations of other
properties.
While a soil survey is in progress, samples of some of the soils in the area generally
are collected for laboratory analyses and for engineering tests. Soil scientists
interpret the data from these analyses and tests as well as the field-observed
characteristics and the soil properties to determine the expected behavior of the
soils under different uses. Interpretations for all of the soils are field tested through
observation of the soils in different uses and under different levels of management.
Some interpretations are modified to fit local conditions, and some new
interpretations are developed to meet local needs. Data are assembled from other
sources, such as research information, production records, and field experience of
specialists. For example, data on crop yields under defined levels of management
are assembled from farm records and from field or plot experiments on the same
kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on
such variables as climate and biological activity. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example,
soil scientists can predict with a fairly high degree of accuracy that a given soil will
have a high water table within certain depths in most years, but they cannot predict
that a high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
6
Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings,
fields, roads, and rivers, all of which help in locating boundaries accurately.
7
Soil Map
The soil map section includes the soil map for the defined area of interest, a list of
soil map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
8
Custom Soil Resource Report
� Soil Map �
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Soil Map may not be vali'�,�at this scal.e.,; _, — =-
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43°5'16"N , � '�_...•,x_.r r�� -_ � ._ :. 1 � .�_;_�t�� � 43°5'16"N
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� Map Scale:1:2,490 if printed on A laix�pe(11"x 8.5")she�. `
^ N Meters `
0 � 70 140 210
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0 100 Z00 400 E00
Mapprojection:VVebMercator Canermorclinates:WGS84 Edgetics:UTM 7�ne 18N WGS84
9
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) Spoil Area The soil surveys that comprise your AOI were mapped at
Area of Interest(AOI) 1 24,000.
Stony Spot
Soils Very Stony Spot
Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale.
Wet Spot
� � Soil Map Unit Lines " Enlargement of maps beyond the scale of mapping can cause
Other misunderstandin of the detail of ma in and accurac of soil
0 Soil Map Unit Points � 9 pp 9 Y
,. Special Line Features line placement.The maps do not show the small areas of
Special Point Features contrasting soils that could have been shown at a more detailed
� Blowout Water Features sCale.
Streams and Canals
�:, Borrow Pit
Transportation Please rely on the bar scale on each map sheet for map
� Clay Spot Rails measurements.
i-�-+
Closed Depression _ Interstate Highways
Source of Map: Natural Resources Conservation Service
, Gravel Pit US Routes Web Soll Sulvey URL:
Gravelly Spot Coordinate System: Web Mercator(EPSG3857)
Major Roads
:r•r Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator
� Lava Flow gackground projection,which preserves direction and shape but distorts
distance and area.A projection that preserves area,such as the
� Marsh or swamp � Aerial Photography Albers equal-area conic projection,should be used if more
- Mine or Quarry accurate calculations of distance or area are required.
Miscellaneous Water This product is generated from the USDA-NRCS certified data as
Perennial Water of the version date(s)listed below.
Rock outcrop Soil Survey Area: Saratoga County, New York
J� Saline Spot Suroey Area Data: Version 20,Jun 11,2020
. Sandy Spot Soil map units are labeled(as space allows)for map scales
� Severely Eroded Spot 1:50,000 or larger.
Sinkhole Date(s)aerial images were photographed: Jun 10,2015—Mar
- Slide or Slip 29,2017
0o Sodic Spot The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps.As a result,some minor
shifting of map unit boundaries may be evident.
10
Custom Soil Resource Report
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
DeB Deerfield loamy fine sand,3 to 0.4 2.5°k
8 percent slopes
GaC Galway loam,8 to 15 percent 15.5 89.8°k
slopes
WnB Windsor loamy sand,3 to 8 1.3 7.7°k
percent slopes
Totals for Area of Interest 17.3 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Wthin a taxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into landforms or
11
Custom Soil Resource Report
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
12
Custom Soil Resource Report
Saratoga County, New York
DeB—DeerField loamy fine sand, 3 to 8 percent slopes
Map Unit Setting
National map unit symbol: 2xfg9
Elevation: 0 to 1,190 feet
Mean annual precipitation: 36 to 71 inches
Mean annual airtemperature: 39 to 55 degrees F
Frost-free period: 145 to 240 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Deerfield and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of DeerField
Setting
Landform: Outwash terraces, outwash deltas, kame terraces, outwash plains
Landform position (three-dimensional):Tread
Down-slope shape: Convex, linear, concave
Across-slope shape: Concave, linear, convex
Parent material: Sandy outwash derived from granite, gneiss, and/or quartzite
Typical profile
Ap-0 to 9 inches: loamy fine sand
Bw- 9 to 25 inches: loamy fine sand
BC-25 to 33 inches: fine sand
Cg-33 to 60 inches: sand
Properties and qualities
Slope: 3 to 8 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Moderately well drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water(Ksat): Moderately high to very
high (1.42 to 99.90 in/hr)
Depth to water table:About 15 to 37 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Sodium adsorption ratio, maximum: 11.0
Available water capacity: Moderate (about 6.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2w
Hydrologic Soil Group: A
Hydric soil rating: No
Minor Components
Windsor
Percent of map unit: 7 percent
13
Custom Soil Resource Report
Landform: Outwash deltas, kame terraces, outwash plains, outwash terraces
Landform position (three-dimensional):Tread
Down-slope shape: Linear, concave, convex
Across-slope shape: Concave, linear, convex
Hydric soil rating: No
Wareham
Percent of map unit: 5 percent
Landform: Depressions, drainageways
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: Yes
Sudbury
Percent of map unit:2 percent
Landform: Outwash plains, outwash terraces, outwash deltas, kame terraces
Landform position (three-dimensional):Tread
Down-slope shape: Linear, convex, concave
Across-slope shape: Concave, linear, convex
Hydric soil rating: No
Ninigret
Percent of map unit: 1 percent
Landform: Kame terraces, outwash terraces, outwash plains
Landform position (three-dimensional):Tread
Down-slope shape: Convex, linear
Across-slope shape: Convex, concave
Hydric soil rating: No
GaC—Galway loam, 8 to 15 percent slopes
Map Unit Setting
National map unit symbol: 9wb2
Elevation: 150 to 1,000 feet
Mean annual precipitation: 36 to 48 inches
Mean annual airtemperature: 45 to 48 degrees F
Frost-free period: 125 to 160 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Galway and similar soils: 70 percent
Minor components: 30 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Galway
Setting
Landform: Benches, ridges, till plains
Landform position (two-dimensional): Shoulder
Landform position (three-dimensional): Crest
Down-slope shape: Convex
14
Custom Soil Resource Report
Across-slope shape: Convex
Parent material: Calcareous loamy till
Typical profile
H1 -0 to 6 inches: loam
H2- 6 to 28 inches: loam
BC-28 to 30 inches: fine sandy loam
2R-30 to 40 inches: unweathered bedrock
Properties and qualities
Slope: 8 to 15 percent
Depth to restrictive feature:20 to 40 inches to lithic bedrock
Drainage class:Well drained
Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00
to 1.98 in/hr)
Depth to water table:About 18 to 36 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Available water capacity: Low (about 4.4 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: F144AY036NY- Semi-Rich Well Drained Till Uplands
Hydric soil rating: No
Minor Components
Charlton
Percent of map unit: 15 percent
Hydric soil rating: No
Farmington
Percent of map unit: 10 percent
Hydric soil rating: No
Newstead
Percent of map unit: 5 percent
Hydric soil rating: No
WnB—Windsor loamy sand, 3 to 8 percent slopes
Map Unit Setting
National map unit symbol: 2svkf
Elevation: 0 to 1,210 feet
Mean annual precipitation: 36 to 71 inches
Mean annual airtemperature: 39 to 55 degrees F
Frost-free period: 140 to 240 days
Farmland classification: Farmland of statewide importance
15
Custom Soil Resource Report
Map Unit Composition
�ndsor, loamy sand, and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Windsor, Loamy Sand
Setting
Landform: Outwash terraces, deltas, outwash plains, dunes
Landform position (three-dimensional):Tread, riser
Down-slope shape: Linear, convex
Across-slope shape: Linear, convex
Parent material: Loose sandy glaciofluvial deposits derived from granite and/or
loose sandy glaciofluvial deposits derived from schist and/or loose sandy
glaciofluvial deposits derived from gneiss
Typical profile
O-0 to 1 inches: moderately decomposed plant material
A - 1 to 3 inches: loamy sand
Bw-3 to 25 inches: loamy sand
C-25 to 65 inches: sand
Properties and qualities
Slope: 3 to 8 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drained
Runoff class: Low
Capacity of the most limiting layer to transmit water(Ksat): Moderately high to very
high (1.42 to 99.90 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Available water capacity: Low (about 4.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2s
Hydrologic Soil Group: A
Ecological site: F144AY022MA- Dry Outwash
Hydric soil rating: No
Minor Components
Hinckley, loamy sand
Percent of map unit: 10 percent
Landform: Outwash plains, eskers, kames, deltas
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Nose slope, side slope, crest, head slope,
rise
Down-slope shape: Convex
Across-slope shape: Linear, convex
Hydric soil rating: No
Deerfield, loamy sand
Percent of map unit: 5 percent
16
Custom Soil Resource Report
Landform:Terraces, deltas, outwash plains
Landform position (two-dimensional): Footslope
Landform position (three-dimensional):Tread, talf
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
17
References
American Association of State Highway and Transportation Officials (AASHTO).
2004. Standard specifications for transportation materials and methods of sampling
and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep-water habitats of the United States. U.S. Fish and Wldlife
Service FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/
n res/d eta i I/n ati o n a I/s o i Is/?cid=n res 142 p2_0 54262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources Conservation
Service, U.S. Department of Agriculture Handbook 436. http://
www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577
Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wldlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/
home/?cid=nres142p2_053374
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/
detail/national/landuse/rangepastu re/?cid=stelprdb1043084
18
Custom Soil Resource Report
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/
n res/d eta i I/so i Is/scie ntists/?cid=n res 142 p2_054242
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,
the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook
296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/?
cid=n res 142 p2_05 3624
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210. http://
www.n res.usda.gov/I nternet/FSE_DOCU M ENTS/n res142p2_052290.pdf
19
�
Th� LA GRQUP
Landscape Arcliieecture O.Enqirreerinq P.C.
pe�o�,/c,l'u�o�r€.Vl re.
=E�1 LC]IlC�7 t11�E'v
5�ralog� Springs
NY 12866
p:518-587-€3100
/. 518-58'1-0180
:'�„��,rr,,�d.11�t'I�r���'r�nn CO�Ii
To: Matthew Brobston
From: Brett Strom
Date 12-15-2020
Subject: Myrtle Street Test Pit Report
Today, I observed 12 deep hole test pits and completed 7 falling head permeability tests at 1 Myrtle Street
in Saratoga Springs, NY. Test pit locations can be found on the attached map.
TP-20
0-6"Topsoil
6-30" 10 YR 3/3 Dark brown silt, trace clay
30-48" 10 YR 4/4 light brown dense clay
Bedrock at 48", strong seeps at 48", no SHWT observed
No falling head permeability test completed.
TP-21
0-6"Topsoil
6-24" 10 YR 3/3 dark brown silt, trace clay, large boulders throughout
24-96" 10 YR 4/4 light brown dense clay
Bedrock at 96", strong seeps at 96", no SHWT observed
Falling head permeability test completed at 48", no infiltration.
TP-22
0-8"Topsoil
8 - 20" 10 YR 3/3 dark brown silt, trace clay, large boulders throughout
20- 108" 10 YR 4/4 light brown dense clay
Bedrock at 108", strong seeps at 108", No SHWT observed
Falling head permeability test completed at 42", no infiltration.
TP-23
0-6"Topsoil
6-24" 10 YR 3/3 dark brown silt, trace clay
24-98" 10 YR 4/4 light brown dense clay
98—102" 10 YR 5/2 dark grey fine sand on bedrock
Bedrock at 102", strong seeps at 98", no SHWT observed
Falling head permeability test completed at 30", no infiltration.
TP-24
0-8"Topsoil
6-72" 10 YR 6/6 fine sand, trace silt
Bedrock at 72", no SHWT or groundwater observed
Infiltration Test completed at 36"
FH-24
Trial 1->120 in/hr
Trial 2->120 in/hr
Trial 3->120 in/hr
Trial4->120 in/hr
Infiltration rate greater than 120 in/hr
TP-25
0-6"Topsoil
6- 12" 10 YR 3/3 Dark brown silt, trace clay
12 -32" 10 YR 4/4 light brown dense clay
Bedrock at 32", no SHWT or ground water observed
No falling head permeability test completed.
TP-26
0-6"Topsoil
6- 16" 10 YR 3/3 Dark brown silt, trace clay
16-36" 10 YR 4/4 light brown dense clay
Bedrock at 36", no SHWT or ground water observed
No falling head permeability test completed.
TP-27
0-6"Topsoil
6-48" 10 YR 3/3 dark brown silt
48—66" 10 YR 4/4 silt trace clay
Bedrock at 66", no SHWT or groundwater observed
Infiltration Test completed at 30"
�.
FH-27
�
Trial 1-60 in/hr
Trial 2-50 in/hr
Trial 3-35 in/hr
Trial 4-25 in/hr
Trial 5-25 in/hr
Trial 6- 25 in/hr
TP-28
0-6"Topsoil
6-56" 10 YR 4/4 dark brown silty fine sand
56—105" 10 YR 3/3 light brown silt trace clay
Bedrock at 105", no SHWT or groundwater observed
Infiltration Test completed at 36"
FH-28
Trial 1- 10 in/hr
Trial 2- 10 in/hr
Trial 3-5 in/hr
Trial 4-5 in/hr
Trial 5-5 in/hr
TP-29
0- 10"Topsoil
10-72" 10 YR 4/4 silty sand, trace clay
Bedrock at 72", no SHWT or groundwater observed
Infiltration Test completed at 36"
FH-29
Trial 1-60 in/hr
Trial 2-35 in/hr
Trial 3-30 in/hr
Trial 4-30 in/hr
Trial 5-30 in/hr
TP-30
0-6"Topsoil
6- 18" 10 YR 4/4 dark brown silt, trace clay
18-30" 10 YR 3/3 light brown clay
Bedrock at 30", no SHWT or groundwater observed
No Infiltration Test completed
TP-31
0-6"Topsoil, large rocks
6-36" 10 YR 4/4 dark brown silt, trace clay
Bedrock at 36", no SHWT or groundwater observed
No Infiltration Test completed
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� -- _
o MAPLE 12
_ ��� �-----— -- // � 3 TREE Tlr.RPLF
� TRf.�c 3 ..
24" � ��� 37p �� I �///�� 3� ; � � ` 377I,. ,;>.IM
wHirE � �E�,a��
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—�� ��.._.
s� —�— `•�
� ��� NM �`o CON WALK - — .
NYT 2 � �� .-- �
28' ��8 OHUL � � � �q �"
so� MAPLE — NG 3 �
�.o
EOP �� '�""
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NM
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. . NM 18 � � � ��
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Th� LA GRQUP
Landscape Arcliieecture O.Enqirreerinq P.C.
pe�o�,/c,l'u�o�r€.Vl re.
=E�1 LC]IlC�7 t11�E'v
5�ralog� Springs
NY 12866
p:518-587-€3100
/. 518-58'1-0180
:'�.;t�,rr,,v.11iel�r!rnn� r:om
To: Matthew Brobston
From: Brett Strom
Date 7-8-2020
Subject: Myrtle Street Test Pit Report
Today, I conducted 3 test pits and completed 3 falling head permeability tests at 1 Myrtle Street in Saratoga
Springs, NY. Test pit locations can be found on the attached map.
TP-1
0-6"Topsoil
6-30" 10 YR 3/3 Dark brown silt, large rocks
30-42" 10 YR 6/6 light brown silty sand
No SHWT or observed
Falling head permeability test completed at 6"
FH-1
Trial 1-30 in/hr
Trial 2-30 in/hr
Trial 3- 20 in/hr
Trial 4- 20 in/hr
Trial 5- 15 in/hr
Trial 6- 15 in/hr
Infiltration rate stabilized at 15 in/hr
TP-2
0-4"Topsoil
4- 28" 10 YR 3/3 Dark brown silt, large rocks
26-42" 10 YR 6/6 light brown silty sand
No SHWT or observed
Falling head permeability test completed at 6"
�� FH-2
Trial 1-40 in/hr
Trial 2-30 in/hr
Trial 3-30 in/hr
Trial 4- 20 in/hr
Trial 5- 20 in/hr
Trial 6-20 in/hr
Infiltration rate stabilized at 20 in/hr
TP-3
0-6"Topsoil
6-36" 10 YR 3/3 Dark brown silt, large rocks
36-42" 10 YR 6/6 light brown silty sand
No SHWT or observed
Falling head permeability test completed at 6"
FH-2
Trial 1-30 in/hr
Trial 2- 25 in/hr
Trial 3- 25 in/hr
Trial 4- 20 in/hr
Trial 5- 20 in/hr
Trial 6-20 in/hr
Infiltration rate stabilized at 20 in/hr
� �� � , � � �� � � � 3gl
�6 � %� � ���' % 1°' �
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;� � � � �� � � ��� ���.
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� ��� � ' � — �. WHI�E Pll�`� � �,
,y� / � � � � ,3t�°° 381 �� �� � � -- ------_
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d
� � � i � � �
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0 � � � � �� � ��� 3�5 � �
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: �
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. . � . . � � / 358 359
. /� � / j� / / �
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/ 3 � �s
a°'� � '�''��%� � � , / � � � �� � � �
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�� �� �
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M�� ��� � � � � �� � S 38� � � ��
, 3 �
�� � � �� � � � � -
/ � ii�� � .�r�>F .��t�
/ 0 / � O ; �/ 3
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h� � �9 �
� � � � . � h � � � � ` � 46
� �� ! � 3�9 b % TP—28
_
,� $5 � 4�3 ^
TP—2 5 3�a as� 356
,
� / " 3 e
w�fo <_ �.: / _— ,
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�
aoa . �/ , . . �f_� f;� 1. 382 � ' : � I�.1F
� � i ' � � 376 � 383 �3 � _ �� � � �
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;
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� � � 36„ � �� � � TF=37 95
'►� ���„ M PLE � 5��; 69
�� � .
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„ 1
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338
� 9 �
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/ / / \ ��; r3;h 372 � 'h�
� — w
� � TP 29 � � 3es w� �Y ,�8�� � 3,6 a�� � �
(� ( M'APLE — � ,s$0
'• OS 303 � �� } �
1 APL� $2 .s' �
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v� � 304� �� � . . . I� .. � 355 40 � 3�"'
r� ��� 37� � � � �� 385 � � �w �, �. �:�� � i
� � �/ � � ��, c�, � � , � 375 � � 372
',='s y,��� �� Z � � \ I /
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��� �'�'�� TP—23 5 — - — ���/
302 � 1 I %% /�
w � �,�g \ ^�� 0� /�%/
� � w� � O 83 �^ � a � � �/��/ � ������������������������������
� � � 4 � 4 "' �'� ^�� ,��� ���� j /
/
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TP—3 0 9 TP 31 ��� �,� %�i� / /
3' - ;r ............................../
� � �380 �
TP-22 � � � � 2� � � 3�z
w ���
� � 379 `3� � � 375
lP 15", � � � � � c� a
� �' ^
� „ &AR � W� GUY 378 � h � � ��40
� � � �377
� 8 'Q 'Q 'Q d' � �
/ > `3> 'Q 'Q � � ''� � ,� p 374 / 1
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�� o � � '� � /
74 � � 3 ` r� /�
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A � � � q, � � ���
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� 78„ � � � � 1� 374 ���,
CRIMSON �, ���
MAPL E �
7P-2 0 TP-9 375 � A H �
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—1 � 371
i
14' �'
,
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s� —�— `•�
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NYT 2 � �� .-- �
28' ��8 OHUL � � � �q �"
so� MAPLE — NG 3 �
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INTERPRETA710N QF SUBSl9RFACE LOGS
The SubsurFace Logs present obser�ations and#he resvlts of tests performed in the field hy the Driller,Technicians,Gealogists and
Geotechnical Engineers as nated. SaillRock Ciassifications are made visuaily,unless atherwise nated,on a partion of the msterials
recovereci through Ehe samp�ing pracess and may nof necessarily be representative of the materials beiween sampling intervals nr
locations.
The following�defines some of the terens utilized in the preparatfan of the SubsurFaca Logs.
5Q1L CLAS5IFICATION5
Sail Classi#icaY+ons are visuaE descriptions on the basis of the Unified Soi!Classification ASTM C3-24$7 and USBR,1973 with add�tianal
comments by weight af constit�ents by BUHRMASTER. The sail density nr consistency is based on the penetration resiskance
determined by ASTM METHOD a4586. Soil Moisture of the reeo�ered rr�aterials is deseribed as DRY,EVIOIST,UVET mr SATURATED.
SI�E DESCRIPTIQN RELATIVE DENSITYIGONSISTi ENCY basis ASTM d'V5$6
SOIL TYPE PARTICLE SIZ� GF7ANULAR SOIL CpNESkVE�OfL
BOIJLdER > 12 f?�NSI�`( BLOWSIfT. CONSISTEf�CY BLOW5IFT.
COBBLE 3"-12" L005� < 14 WERY SbFT � 3
GRAVEL-��ARSE 3" -3!4" FIRM 19 - 30 SOFT 4 - 5
GF2AV�L - FjNE 314" - #4 COMPACl" 31 - 50 MEDIUM 6 - 15
SAl�D-Ct7ARSE #4 - #10 VERY GOMPAGT 50+ SfifFf 16 - 25
SAt�D-MEDIIJM #14 - #4a HAaQ 25 +
SAND-FINE #44 - #200
SILTINONPLASTIC � #200
CLAYIPIASTIC � #24�
SOIL S7f2liCTURE RELATIVE PROPORTIQN Q�50�L TY�ES
STRUCTl1RE �ESCRIPTION DESCRiPTION °10 CJF SAMPLE SY{lVEEGHT
LAYER 6"THICK 4R GREATER AND 35 - 50
SEANi 6"TH1ClC dR LESS 50ME 20 - 35
PARTING LESS T'FIAN 114"TFftCK LITTLE 14 - 20
VARVE� UNIFQR6Ul 1-1ORIZOIVTAL TF2ACE LESS�t'!-1APl 10
PARTINGS OFt SEAMS
Note that the classification of soiYs or soil fike materials is subject to the limita#ians iinposed by the size of the sampler,the size of the
sample and its degree of disturbance and rnoisture.
ROCK CLAS51fICAT10NS
Rock Classifcations are visual descriptions on the 6asis of tt�e Drilaer's, Te�hnician's, Ge€�IogssYs or Geotechnical Engineer's
observations of the cor�ng activiEy and the recovered samples app6ying the following c[assificatipns.
GLASSlFICATIOE� TERM �ESCFtIPTION
VERY HARD NOT SCRATC!-I�D BY KNIFE
I-EARD SCRATCHED tNITH DIFFICULTY
ME�I�JM HARD SCRATCHED EASILY
�p� SCRA`I`CFIE[7 WITH FINGERNAIL
VEFiY WEATHEf2ED DISIIVTi EGRATED WITH NUMEROUS SOIt SEAM
UVEATHERED SLIGHT DISiNTEGRATIC}N,STA1N11V�G,NO SEAMB
SOUND N� EVIDE'NCE OF AB(3VE
MASSIVE ROCK LAYER GREATER TI-1AN 36"THICK
THICK BEDDED F20CK lJ�YER 12"-36"
BE�dE� ROCK LAYER 4"-12"
THIN BE�DEQ R�CK LAY�R 1"-4"
LAMINATED ROCK LAY�R LESS THAIV 1"
F�p���}��S NAT4JRAI�E3RE,4K5 AT SOME A[�Gi�Tfl BEDS
Core sarreple recovery is expressed as percent recovered af totaf sampled. The RQCK QUALITY�DESiGNA7101V(R(2D)is the total
length of cc�re s�mple pieces exceeding 4"length divided by the tatal core sample length for N si2e cased.
GENERNL
r Soik and Rock cEassifications are made visual6y on samples recovered. The presence of Gravel,GobbEes an[E Baulders wi�l
influence sample recovery classification density/consistency determination.
• Groundwater,ifi encountered,was measured and its depfh reeorcfed at the time and under the conditi�ns as noted.
+ Tapsoil or pavements,if presen#,were measured and recorded at the time and under the conditions as nated.
• Stratification Lrnes are approximate boundaries between soil typ�s. These transitions may be gradual ordiscinct and are
approximated.
DENTE EIVGrNEEF�.ING
TEST PIT F1ELD LOG
I'RC}JECT: Saratoga Hospitap MOB NUMBER: TP-1
LQCATIf)N: Morgan Street-Sarataga Springs, NY FILE NO. FD�-15-260
C�NTRACTOR: Bonacia DATE: 12-3-15
MAK�: Komatsu MQDEL: PG27MR (mini} ENGINEER. J.Robichaud, P.E.
WEA`fH�R: O�ercast CAPACITI': ±1/4 yd3 BOOM REACH; ± 10'
GROlJND LEVEL: 375�13` TIME START: NIA TIME S�'O€�: NfA
DEPTH SOIL �ESCRIPTION �xcnvaT�ar� eou��ea
e��o�xr couNr
*4"TOPSOI L E
'['
Brown 51LT, LittEe F-C Sand (MOf57) E
2'
M-D
3'
C]
4'
End of test pik at 2.�'to 4.�1'cCepth below ground surFace with
5'
practical excavator bucket refusaf or�top of becfrack.
6'
7'
�la measurable ground water sncountered during exca�ation.
8'
9'
Bedrock encaunkered at ele�atian 372.85' (2.3' depth}throughout
�a�
majority of test exca�atian.
'11'
12'
21" ta 24"wicEe solufion cavity encauntered within test excavatfan_
13`
Bottom af ca�ity surrreyed at ele�ation 379.07' (4.1' depth).
14`
1�'
Surveyor provided top of rock elevations in this test pit.
Rert�arics: Graund surface clevation provided by surveyor.
80L1LDER COEINT ABBREVEATIOAfS EX+CAVATIOM��F(}RT
sEZER,an�ce LETT'ER F=�w� EASY.........................E
CLASSIFlCAT10N DESIGIdA'fION M=ME.I�IPJM
C=COARS� MO�E#tATE..............M
B"-1$" A �_M�FIh1E TO M�OILIM
F=C=FIN£TO CaARSE
'18"-38" g Ght=GRAY DIFFICULT...... .[3
BN=BROWN .........
36"&OYER C YEt=YELLOW
D��TE ENGI�iEERI�IG
TEST PIT FIELD LQG
PR�JECT: Saratoga Hospital M�'� NUM6ER; TP-2
LOCATIOfV: Morgan Street-Saratoga Springs, NY FILE NO. FDE-15-260
C�NTRACTOR: Bonacio DATE: 12-3-15
MAKE: Komatsu MODEL: PC27MR (mini) ENGIIVEER: J.Robichaud, P.E_
WEATHER: OWereast CAPAGITY: ±1/4 yd3 BOOM REACH: ± 1fl'
GROUND LEVEL; ± 376_5' TIM� START: NIA TIME STOP: NIA
DEPTH SOIL �ESCRlPTION EXCAVATION 9flf1LDER �
EF�ORT COUIJT
Soils�xeavated at this location were pre�iously disturbed �y others. E
9'
E-D
�y
�nd of t�st pit at 1.5' depth below ground surface with practica!
3'
excavatar bucket refusal an top of bedrack alao�t ele�ation � 374.9'
�� —
5'
No measurable ground water encountereci during excavation.
6'
7'
Excawation was advanced at lacatian pre�iously excavated by
8"
others ta determine depth to bedrock surface.
9'
1 U'
91"
12'
13'
14'
15'
Remarks: Ground surFace eleuation int�r�olateci from site grading plan pro�ided td us.
BOI�LDER COUNT ABBR�VIATfOfJS EXCAVATION EFfORT
s�z�Ran��� LETfER �=Ft�l� EASY..................... E
CLASSjFICAT16iU 6ESIGMATION �=MEUIUM +•••
C=GDARSE
6"-18" A F-M=FWE TO ArtEUIUM MUDERATE..............INI
F-C=�ih1E TO CiOARSE
18"-36" B GR=GFtAY DIFFICUL7................D
BN=BROWN
36"&OV��t C YEL=YELi.f}W
DENTE ��IGI�IEERING
TEST PIT FIELD LOG
PRQ.JEGT: Saratoga Hospital MOB NUMBER: TP-3
LOCA710N: Morgan Street-Saratoga Springs, NY FILE 'NO. FDE-�5-260
G�NTRACTOR: Bonac�o DA�E: �2-3-15
MAKE: Komatsu MODEL: PC27MR (mini) ENGIMEER: ,�.Rabichaud, P.E.
WEATH�R: O�ercast CAPACITY: ±1I4 yd3 BO�M R�ACH: ± 1Q'
GROUND LEV�L: 375.57` * TIME START: NfA TIME STOP: NIA
DEPTH SOIL QESCRlPTID'PJ EKCAVATI{1N eou�oEr�
EFFORT COUNT
+�"TC3PSC71L E
1"
FIL.L: Dark B�own SILT, L"[ttle �'-C Sar�ti w�th cobbles, metal pipe, M
2'
asphalt, and A 1 B si�ed rocic'fragrnents(MC?IST) �
3' - - -- - - - - - - - - - - - � - - - -- - - -
Brown SIL7, Liitle F-C 5and wikh occasior�al cobbles note� (MOIS7) M
4'
D
5'
End of test pit at 4.9' depkh below ground surface with
6'
practical exca�ator bucket retusal on top of bedrack(el. 37Q.7')
7'
8'
EVo mea5urable graund water encountered during excavatian.
9'
10'
8�drock surtace ger�erally level through Eimits af test excavakion.
11'
12'
�xcavati�n was campketed appraximately �0` south of staked and
13'
surueyed building cornef. * Ground surface eie�a#ion shown is
14'
approximate as the bench mark elevation was transferred by
15`
Bonacio and Dente r�presentatives to the actua! exca�ation lo�atian.
Remarks: Geound surface elevation prvvided by suruey4r. Bedrack e�eva#ions shQwn rneasured fram sunrey
stake adjacent test�it exea�atian and shauid be considered approximate.
BOULdER COU�1T ABBREVIATIONS EXCAVATIQN EFFOR7
SIZE RANGE LETTER F=FINE EASY............. ....E
CLASSIFICAT{ON DESEGNA710N ��� ��.�
M=MEDIUM
C=CbAl2SE
$"-18" A F-M=fINE Tfl MEQfUM ���ERAT£..............M
�-C=FINE TO CC7ARSE
'k8"-36" g GR=GRAY ❑IF�I�UL'�................D
BN=BRQWN
36"&flVER C YEL=YELLOW
DENTE ENGI�JEERING
TEST PIT FfELD LOG
PROJEGT: Saratoga Hos�ita� MOB NUMB�R: TP-4
LOCA�'If3N: Morgan Street-Saratoga Springs, NY �ILE NO. F[��-�5-260
GONTRACTOR: Banacio DATE: 1�-3-�5
MAKE: Komatsu M�DEL: PC27MR {mini) ENGINEER: J.Robichaud, P.E.
WEA7HER: Qvercast CAM�ACITY: ±1l4 yci3 BO�M REACH: ± 10'
GROUND LEV'�L. 374.01' TIME START: I�IA TIME ST4P: f�lA
DEPTH SOIL'DESCRIPTION EXCAVATIOlV BOULDER
EFFORT COUNT
+4"TOPSOI L E
1'
FILL.: Dark Brow� SILT, Little F-C Sar�d with eab�lelrack fragments �-D
2� - - - - - J- - - - - - - - - - � - - - - -- -
Brawn SILT, Lit�le F-C Sand vuith cabbfes noted (M0157) �
3'
4'
End of test pit at 1.5' to 2.5' depth below ground sur�aee with
5'
practical exca�atar bucl�et refusal an to� of bedrock.
B'
7'
No measurable grvund water encounterer� during exca�atian.
$`
9'
Bedrock encountered at ele�atian 372.5' (9.5' depth}throughout
1 U'
majority of test exca�atian.
11'
1�'
±9"wide salutian cavify encountered within test exca�ation.
13'
Bottom of ca�ity measured at ele�ation 371.6' (2.5' depth).
"�4'
'I 5'
Ren'9arks: Ground surface elevation prov�ded by sunreyor. Bedrock elevatians shown measur�d from survey
stake adjacent test pit exca�ation and should be considered approximate.
BOULUER CQt1NT ABBREVIATIONS �XCAVATION E�FORT
SIZE RANGE LE1�ER �=Flh1E EASY.........................E
CLASSIFICATION dESIGNATION M=M�DIUM
C=COARSE IV�ODERP►TE..............M
6"-1$" A F-M=FYNE TO MEDIUIIA
F-C=FM�T�Cf)ARSE
�s'"-36°' B GR=�R,4� DIFFIGULT................�
BN=BROWN
36"&OV�R � YEL=YELLaW
DENTE ENGINEERING
TEST PlT FIEt�Q LOG
PROJECT: Saratoga Hospital MOB NUMBER; TP-5
LOCATiON: Morgan Street-Saratoga 5prings, NY FI�E N0, FDE-15-260
CONTRACTOR. BonaGio C]AT�: 12-3-�5
MAKE; Komatsu MODEL: PC27MR (mini) ENGINEER: ,7.Rabichaud, P.�.
WEATHER: Ouercast CAPACITY: ±114 yd3 BQQM REACF�: } 10'
GRQUND �EVEL: 373.16' TIME STAR`�: NIA TIME STOP: N/A
DEPTH SOIL DE3CRIPTI01� EXCAVAl70M eou��eR
EFFdRT C4UMT
±4" TOPSOIL E
1'
Brown SILT, �ittle F-C Sand with cobbles noted (MOIST) E-D
2'
Q
3'
D
4'
End af test pit a#Q.8'ta 3.4'dep#h befow grounci surface with
5'
p�actical exca�ator bucket refusal on to�, of bedrocic.
6'
7'
No measurable ground water encountered durir�g excavatiora.
8'
9'
Bedrock encountered at elevation 372.4' (Q.8' depth)throughout
10'
majority of test excavatian.
1'I'
12'
Solution ca�ity encountered wit�Fn test exca�atiorr, narth east corner.
13'
Bottom of cavity surveyed at ele�ation 369.8' {3.4' c�epth}.
14'
15�
Surveyor provided top of rack el�vations in this test pit.
Rem�rk5: Graund surface elevativn pra�rided by surveyor.
Bl7ULDER C0131�iT ABBREVIATIONS EXCAVATION EFF�RT
SIZE f2ANGE L�TTER F=FINE EASY.........................E
CLASSIFECATION DESIGlVATIQN �=ry��DIURA
C=CQARSE
6"-18" A F-M=FIN�TO NfEDILiM MQDERAT�..............M
F-C=FIN�7(7 COARSE
'$"-��" B GR=GRAY DIFFICULT......
......,...[)
BN=BROWN
36"&flVER C Y�L=YELLOW
DENTE ENGINEERING
TEST PlT FIEL� L�G
PROJECT: Saratag� Haspital MOB NllMSER: TP-6
LOCATtON: Morgan �treet-Saratoga Springs, NY FI�E NO. FQE-�5-26U
CON7FtAC70R. Bonacio �ATE: 'E2-3-15
MAKE: Komatsu MODEL: PC27MR (mint) �NGlNEER: J.Rabichaud, P.E.
W�A7HER: O+rercast CAI�ACiTY: ±114 ycC3 BO�M REACM: �* 10'
GROUN� LEVEL: 373.18' TIME ST'ART: NIA TIME STOPr NIA
DEPTH SOIL DESCRIPTI4N EXCAVA'f�ON BOULQER
EFFORT COUNT
± 8"70f'SOI L E
7'
Brown SILT and F-C SAN�, Little Gravel (MO1ST) '�-D
2'
D
3'
D
4'
End of fest pit at 1.8' to 3.2' depth belaw grnund sur#ace with
5'
prac#ical excaUator bucket refusal on top of bedrock.
6'
7'
No measurable ground water encauntered durirrg exca�ation.
S'
9'
Bedrock encountered at elevation 37�.4' (1_8'depth}, 370.3' {2.9'
1 Q'
depth) and 370.0' t32' depth)within lirnits of exca�atian. '
'I 1'
12'
'13'
14'
15'
Remarks: Graund sutface�levation provided by surveyor. Bedrock e�evations shown rrieasured frflm survey
stake�djacent test p3#excavatian and should be considered approximat�.
BQULD�F2 CpIJNT ABBREVIATIONS EXCAVATf01J EFFORT
SIZE RANGE LE1T�R F=FfNE EASY.........................E
GLASSIFICATiON DESIGRlATION �='�,(�EDIUM
C=COARSE
6"-'1$" A F-M=F{NE TQ MEDIUM MODERP►TE..............M
F-C=FINE TD COARSE
�s"-3s" B GR=GRAY UlFFlCULT................D
BN=S�tOWfV
36"&OVER C YEL=YELLOW
DE[VTE ENGlNEERING
TEST PfT FlE�D LQG
PROJECT: Saratoga Hospi#al MOB WUMBER: �'P-7
LC}CATfON: Morga� Street-Saratoga Springs, NY FILE NO. FC�E-�5-260
CONTRACTOR: Bonac+o E]ATE: 12-3-15
MAK�: Kamatsu MODEL: PC27MR {mini) �NGINEER: 9.Robichaud, P.E.
WEATHER: Overcast CAPACiTY: +114 yd3 �ODM REACH: ± 10'
GROIJNQ LEVEL: 372.73' TIME $TART: NIA TINEE STOP: NIA
DEPTH SOIL DESCrRIPTION EXCAVATION BOIJL�ER
EFFORT COUhJT
± 6"TOPSOIL E
1'
Brown S�LT, Little F-C Sand to±16"depth (M�IS7y E
2'
Grades Brown 51LT, trace fine sand {MOIST) E
3'
E-D
4� -
End a�test�it at 4' depth beEow ground surface with �ractical
5'
exca�atar bucket refusaE on top of bedrock (eievation �68.71').
€'
7'
Bedrock surFace generally level through limits+�f excavation.
8'
9'
!Vo measurable ground water encountered du�ing exca�ation.
10'
11'
12'
13'
14�
't 5'
Remarks: Ground surface elevation provi�ed by surveyor. Bedrack eievations shown measured irom survey
stake acljacent test pit excavation and shpuld be considered approximate.
BOULCIER CflUNT ABBREWIATIONS �XCAVATION EFfORT
SIZE RAM1tGE LETTER F=FINE EASY......�.........
CLASSI�ICATION DESIGNATION �=ry��DIUM •��•aR�..
C=COARSE MODERATE..............M
s"-18�� A F-M�F��IE TO MEDMUM
F-C=FINE TO COARSE
�a"-3�" e �R=��av CIEFFICULT................Q
BN=BROWN
36"&OVER C YEL=YELLOW
DE�1TE ENGI�JEEF�IIVG
TEST PIT FIELD LOG
PRQJECT: Saratoga Hospital MQB NUM6ER: TP-S
�OCATION: Morgan Street-Saratoga Springs, f�Y F�LE N�. FDE-15-260
CONTRACTOR: Banacbo DATE: 12-3-15
MAKE: Kamatsu MODEL: PC27MR (mini} EI�GINEER: J.Robichauc�, P.E.
WEATHER: dve�cast CAPACITY: ±�f4 yd3 BOOM REAGH: ± 10'
GR�UND L�V�L: 372.56" TIfVI� S7ART; NIA TiME STOP: NIA
dEPTH SOfL DESCRIPTION exc,avanoN BDULDER
EFFOR7 CpUNT
±4"TOPSC}IL E
1'
FILL: Da�k Brown SILT, Little F-C Sand with cobbles, bricks, roats M
�� � ..T - - - - - - - - - - - - - - - - - - - - -
Brown �-C SAND, Some Silt, trace gravel (MOIST) E
3'
• — — — — — — — — — — — � — — — — — — — — — — — E
4'
Brown SILI', Little F-G Sand (M41STy �
5'
�
6'
�nd of test pit at 5.3' depth below ground sur€ac�with practicaf
7'
excavator bucket refusal on top of bedr�ck{�levatian 367.3').
8"
9'
Bedrack surtace generally lewe! through limits of�xcavation.
10°
1'I'
No mea�urable ground water encoun�ered during �xcaVatibn.
12'
13'
74"
15'
Remarks: Ground surface elevation provided�y surveyor. Bedrock efe�ations shown measured fram survey
stake adjacent test pit�xca�ation and shauld t�e considered approximate.
BOI�LDER COUNT AB6REVIATIOlVS EXCAVA710N E�FpRT
SIZE RANGE LETT�R F=FINE EASY.........................E
CLASSiFICATEON DESIGNATIdN M=MEDIUM
C=CbA(2SE
���-'�$`� A F-flA=FINE TO MEaIUM MC3DERAT�..............�
F-C=FINE TO COARSE
1 B"-36" B GR=GRAY DIFFIGULT..,.. ...Q
.....,..
BN=BROWI+!
36"&OVER C YEL=YELL01fV
DENTE E�VGINEERl�1G
TEST PIT F[ELD LOG
PROJECT: Sara#oga Hospital MOB NUMBER: TP-9
LOCATIaN: Morgan Street-5ar�toga Springs, NY FiL� NO. FD�-15-260
CONTRACTQR: �onacio DATE: 12-3-'f 5
MAKE: Komatsu MODEL: PC27MR {m�ni) �NGtNEER: ,1.Robich�ud, P_E.
WEATHER: Overcast CAPACITY: ±'f14 yd3 BOOM REACH: �- 1Q'
GROUND LEVEL: 372.35' TIME START: NfA TIME ST�OP: �ilA
DEPTH S�IL �ESCRIPTION EXCAVATkON BOLJLDER
�FFaRT COUNT
±4" TOP5011. E
1'
FILL: �ark Brown 51LT, Lfttle �-C Sand wikh cobbles, bricks, r�dts, D
2'
A and B sized rock boulders, cut branc�es, metal pipe D
3'
¢� - - - - - - - - - - - - - - - - - - -- - - - y _ _ _ _ _ _ - - - - - - _ _ p
Brown SILT, Little F�C Sand (MdIST� �
5'
D
G'
End of test pit at 4.7' to 5.2' depth belr�w ground surface with
7'
practical excavator buck�t refusal on top of bedrock (elevatian
8'
367.7'to 367.2').
9'
10'
Ground water observed slowly entering ex�avation at 3.5'ta
11'
4' depth belaw g�ound surface (fill 1 native sai� �nterface).
12"
13'
14'
15'
RemafkS: Ground surface elevation provided by surveyar. 8edrock elevations shown measured frorn survey
stak�adjacent test pit excavatior� and should be consideted appraximate.
BQULDER COUNT ABBREVIATION& EXCAVAT[Q�1 EFFORT
SlZE RANGE LETT�R F=FII�3E �ASY.........................E
CLASSIFICATION �ESIGNATIQN M=MEDIU�41!
C=CQARS�
6"-1$" A F-M=�INE TO MEDiUM MODERA�E..............M
F-C=FIIVE Tp CQARSE
18"-36" g GR=GRAY DIFFIGULT................Q
BN=BROWNE
36"8 OV!ER � YEL-YELLOW
Attachment B
Existing Conditions Watershed Map and
HydroCAD Calculations
/
i
♦ �
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. The LA GROUP
' LEG E N D Landscape Architecture&Engineering P.C.
� � PeopCe.Purpose.Place.
�' 40 Long Alley p: 518-587-8100
/ � � � � � SUBCATCHMENT BOUNDARY Saratoga Springs �518-587-0180
NY 12866 www.thelagroup.com
OSUBCATCHMENTID
Unauthorized alteration or addition to this
� � TIME OF CONCENTRATION PATH document is a violation of Section 7209 of the
0 New York State Education Law.
� �
` ANALYSIS POINT �O the LA Group 2020
� A - 1
/ � / P�epared for.�
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Saratoga Hospital
♦ 211 Church Street
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o� �`——J O 376
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;AP-5
AP-5
AP-4 ( 6 )
��
AP-4 Subcat 6
�
Subcat 4
03 (� AP-2
S bcat 3 Subcat 2 Existing Pond
V
Sub at 1
a
Subcat 5
�AP� AP-1�
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AP-3 AP-1
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Subcat Reach on Llnk Routing Diagram for 201517 Pre Development
Prepared by The LA Group, Printed 7/22/2021
'- ` HydroCADO 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC
201517 Pre Development
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2
Area Listing (all nodes)
Area CN Description
(sq-ft) (s u bcatch me nt-n u m be rs)
69,973 39 >75% Grass cover, Good, HSG A (4, 5)
700,097 74 >75% Grass cover, Good, HSG C (1, 2, 3, 4, 5, 6)
15,190 98 Paved parking, HSG A (4, 5)
19,192 98 Paved parking, HSG C (1, 2, 3, 4, 5)
2,020 30 Woods, Good, HSG A (4)
52,457 70 Woods, Good, HSG C (1, 2, 3, 4)
858,928 72 TOTAL AREA
201517 Pre Development
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3
Soil Listing (all nodes)
Area Soil Subcatchment
(sq-ft) Group Numbers
87,182 HSG A 4, 5
0 HSG B
771,746 HSG C 1, 2, 3, 4, 5, 6
0 HSG D
0 Other
858,928 TOTAL AREA
201517 Pre Development
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4
Ground Covers (all nodes)
HSG-A HSG-B HSG-C HSG-D Other Total Ground Sub
(sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) Cover Nun
69,973 0 700,097 0 0 770,070 >75% Grass
cover, Good
15,190 0 19,192 0 0 34,382 Paved parking
2,020 0 52,457 0 0 54,476 Woods, Good
87,182 0 771,746 0 0 858,928 TOTAL AREA
201517 Pre Development Type ll 24-hr 1 yr Rainfa11=2.15"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5
Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1: Subcat 1 Runoff Area=147,381 sf 3.88% Impervious Runoff Depth=0.48"
Flow Length=580' Tc=11.0 min CN=WQ Runoff=2.06 cfs 5,896 cf
Subcatchment2: Subcat 2 Runoff Area=94,446 sf 0.55% Impervious Runoff Depth=0.41"
Flow Length=260' Tc=9.6 min CN=WQ Runoff=1.16 cfs 3,206 cf
Subcatchment3: Subcat 3 Runoff Area=85,251 sf 8.11% Impervious Runoff Depth=0.54"
Flow Length=605' Tc=10.1 min CN=WQ Runoff=1.38 cfs 3,824 cf
Subcatchment4: Subcat 4 Runoff Area=421,481 sf 2.72% Impervious Runoff Depth=0.41"
Flow Length=915' Tc=22.0 min CN=WQ Runoff=3.37 cfs 14,562 cf
Subcatchment5: Subcat 5 Runoff Area=94,338 sf 10.37% Impervious Runoff Depth=0.43"
Flow Length=412' Tc=14.5 min CN=WQ Runoff=1.05 cfs 3,402 cf
Subcatchment6: Subcat 6 Runoff Area=16,031 sf 0.00% Impervious Runoff Depth=0.42"
Tc=6.0 min CN=74 Runoff=0.25 cfs 564 cf
Link AP-1: AP-1 Inflow=2.06 cfs 5,896 cf
Primary=2.06 cfs 5,896 cf
Link AP-2: Existing Pond Inflow=1.16 cfs 3,206 cf
Primary=1.16 cfs 3,206 cf
Link AP-3: AP-3 Inflow=2.38 cfs 7,226 cf
Primary=2.38 cfs 7,226 cf
LinkAP-4: AP-4 Inflow=3.37 cfs 14,562 cf
Primary=3.37 cfs 14,562 cf
LinkAP-5: AP-5 Inflow=0.25 cfs 564 cf
Primary=0.25 cfs 564 cf
Total Runoff Area = 858,928 sf Runoff Volume = 31,454 cf Average Runoff Depth = 0.44"
96.00% Pervious = 824,546 sf 4.00% Impervious = 34,382 sf
201517 Pre Development Type ll 24-hr 10yr Rainfa11=3.75"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 6
Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1: Subcat 1 Runoff Area=147,381 sf 3.88% Impervious Runoff Depth=1.50"
Flow Length=580' Tc=11.0 min CN=WQ Runoff=7.25 cfs 18,374 cf
Subcatchment2: Subcat 2 Runoff Area=94,446 sf 0.55% Impervious Runoff Depth=1.38"
Flow Length=260' Tc=9.6 min CN=WQ Runoff=4.54 cfs 10,860 cf
Subcatchment3: Subcat 3 Runoff Area=85,251 sf 8.11% Impervious Runoff Depth=1.57"
Flow Length=605' Tc=10.1 min CN=WQ Runoff=4.49 cfs 11,183 cf
Subcatchment4: Subcat 4 Runoff Area=421,481 sf 2.72% Impervious Runoff Depth=1.32"
Flow Length=915' Tc=22.0 min CN=WQ Runoff=12.90 cfs 46,497 cf
Subcatchment5: Subcat 5 Runoff Area=94,338 sf 10.37% Impervious Runoff Depth=1.15"
Flow Length=412' Tc=14.5 min CN=WQ Runoff=3.07 cfs 9,079 cf
Subcatchment6: Subcat 6 Runoff Area=16,031 sf 0.00% Impervious Runoff Depth=1.42"
Tc=6.0 min CN=74 Runoff=0.91 cfs 1,891 cf
LinkAP-1: AP-1 Inflow=7.25 cfs 18,374 cf
Primary=7.25 cfs 18,374 cf
LinkAP-2: Existing Pond Inflow=4.54 cfs 10,860 cf
Primary=4.54 cfs 10,860 cf
LinkAP-3: AP-3 Inflow=7.40 cfs 20,262 cf
Primary=7.40 cfs 20,262 cf
LinkAP-4: AP-4 Inflow=12.90 cfs 46,497 cf
Primary=12.90 cfs 46,497 cf
LinkAP-5: AP-5 Inflow=0.91 cfs 1,891 cf
Primary=0.91 cfs 1,891 cf
Total Runoff Area = 858,928 sf Runoff Volume = 97,883 cf Average Runoff Depth = 1.37"
96.00% Pervious = 824,546 sf 4.00% Impervious = 34,382 sf
201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 1
Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1: Subcat 1 Runoff Area=147,381 sf 3.88% Impervious Runoff Depth=3.45"
Flow Length=580' Tc=11.0 min CN=WQ Runoff=16.92 cfs 42,417 cf
Subcatchment2: Subcat 2 Runoff Area=94,446 sf 0.55% Impervious Runoff Depth=3.29"
Flow Length=260' Tc=9.6 min CN=WQ Runoff=10.96 cfs 25,931 cf
Subcatchment3: Subcat 3 Runoff Area=85,251 sf 8.11% Impervious Runoff Depth=3.55"
Flow Length=605' Tc=10.1 min CN=WQ Runoff=10.25 cfs 25,201 cf
Subcatchment4: Subcat 4 Runoff Area=421,481 sf 2.72% Impervious Runoff Depth=3.13"
Flow Length=915' Tc=22.0 min CN=WQ Runoff=31.20 cfs 109,842 cf
Subcatchment5: Subcat 5 Runoff Area=94,338 sf 10.37% Impervious Runoff Depth=2.64"
Flow Length=412' Tc=14.5 min CN=WQ Runoff=6.90 cfs 20,791 cf
Subcatchment6: Subcat 6 Runoff Area=16,031 sf 0.00% Impervious Runoff Depth=3.35"
Tc=6.0 min CN=74 Runoff=2.12 cfs 4,480 cf
LinkAP-1: AP-1 Inflow=16.92 cfs 42,417 cf
Primary=16.92 cfs 42,417 cf
LinkAP-2: Existing Pond Inflow=10.96 cfs 25,931 cf
Primary=10.96 cfs 25,931 cf
LinkAP-3: AP-3 Inflow=16.73 cfs 45,992 cf
Primary=16.73 cfs 45,992 cf
Link AP-4: AP-4 Inflow=31.20 cfs 109,842 cf
Primary=31.20 cfs 109,842 cf
Link AP-5: AP-5 Inflow=2.12 cfs 4,480 cf
Primary=2.12 cfs 4,480 cf
Total Runoff Area = 858,928 sf Runoff Volume = 228,662 cf Average Runoff Depth = 3.19"
96.00% Pervious = 824,546 sf 4.00% Impervious = 34,382 sf
201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2
Summary for Subcatchment 1: Subcat 1
Runoff = 16.92 cfs @ 12.03 hrs, Volume= 42,417 cf, Depth= 3.45"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
141,174 74 >75% Grass cover, Good, HSG C
5,718 98 Paved parking, HSG C
489 70 Woods, Good, HSG C
147,381 Weighted Average
141,663 96.12% Pervious Area
5,718 3.88% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.9 100 0.0450 0.21 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
3.1 480 0.0290 2.55 Shallow Concentrated Flow,
Grassed Waterway Kv= 15.0 fps
11.0 580 Total
Summary for Subcatchment 2: Subcat 2
Runoff = 10.96 cfs @ 12.01 hrs, Volume= 25,931 cf, Depth= 3.29"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
76,095 74 >75% Grass cover, Good, HSG C
519 98 Paved parking, HSG C
17,832 70 Woods, Good, HSG C
94,446 Weighted Average
93,927 99.45% Pervious Area
519 0.55% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
8.7 100 0.0350 0.19 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
0.9 160 0.0400 3.00 Shallow Concentrated Flow,
Grassed Waterway Kv= 15.0 fps
9.6 260 Total
201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3
Summary for Subcatchment 3: Subcat 3
Runoff = 10.25 cfs @ 12.02 hrs, Volume= 25,201 cf, Depth= 3.55"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
74,431 74 >75% Grass cover, Good, HSG C
6,910 98 Paved parking, HSG C
3,910 70 Woods, Good, HSG C
85,251 Weighted Average
78,341 91.89% Pervious Area
6,910 8.11% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.6 100 0.0700 0.25 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
3.5 505 0.0250 2.37 Shallow Concentrated Flow,
Grassed Waterway Kv= 15.0 fps
10.1 605 Total
Summary for Subcatchment 4: Subcat 4
Runoff = 31.20 cfs @ 12.15 hrs, Volume= 109,842 cf, Depth= 3.13"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
37,540 39 >75% Grass cover, Good, HSG A
340,246 74 >75% Grass cover, Good, HSG C
10,402 98 Paved parking, HSG A
1,048 98 Paved parking, HSG C
2,020 30 Woods, Good, HSG A
30,225 70 Woods, Good, HSG C
421,481 Weighted Average
410,031 97.28% Pervious Area
11,450 2.72% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.5 100 0.0500 0.22 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
14.5 815 0.0180 0.94 Shallow Concentrated Flow,
Short Grass Pasture Kv= 7.0 fps
22.0 915 Total
201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4
Summary for Subcatchment 5: Subcat 5
Runoff = 6.90 cfs @ 12.07 hrs, Volume= 20,791 cf, Depth= 2.64"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
32,433 39 >75% Grass cover, Good, HSG A
52,120 74 >75% Grass cover, Good, HSG C
4,789 98 Paved parking, HSG A
4,997 98 Paved parking, HSG C
94,338 Weighted Average
84,553 89.63% Pervious Area
9,785 10.37% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
9.2 100 0.0300 0.18 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
5.3 312 0.0200 0.99 Shallow Concentrated Flow,
Short Grass Pasture Kv= 7.0 fps
14.5 412 Total
Summary for Subcatchment 6: Subcat 6
Runoff = 2.12 cfs @ 11.97 hrs, Volume= 4,480 cf, Depth= 3.35"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
16,031 74 >75% Grass cover, Good, HSG C
16,031 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Link AP-1: AP-1
Inflow Area = 147,381 sf, 3.88% Impervious, Inflow Depth = 3.45" for 100yr event
Inflow = 16.92 cfs @ 12.03 hrs, Volume= 42,417 cf
Primary = 16.92 cfs @ 12.03 hrs, Volume= 42,417 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5
Summary for Link AP-2: Existing Pond
Inflow Area = 94,446 sf, 0.55% Impervious, Inflow Depth = 3.29" for 100yr event
Inflow = 10.96 cfs @ 12.01 hrs, Volume= 25,931 cf
Primary = 10.96 cfs @ 12.01 hrs, Volume= 25,931 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-3: AP-3
Inflow Area = 179,589 sf, 9.30% Impervious, Inflow Depth = 3.07" for 100yr event
Inflow = 16.73 cfs @ 12.03 hrs, Volume= 45,992 cf
Primary = 16.73 cfs @ 12.03 hrs, Volume= 45,992 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-4: AP-4
InflowArea = 421,481 sf, 2.72% Impervious, Inflow Depth = 3.13" for 100yr event
Inflow = 31.20 cfs @ 12.15 hrs, Volume= 109,842 cf
Primary = 31.20 cfs @ 12.15 hrs, Volume= 109,842 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-5: AP-5
Inflow Area = 16,031 sf, 0.00% Impervious, Inflow Depth = 3.35" for 100yr event
Inflow = 2.12 cfs @ 11.97 hrs, Volume= 4,480 cf
Primary = 2.12 cfs @ 11.97 hrs, Volume= 4,480 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Attachment C
Proposed Conditions Watershed Map,
HydroCAD Calculations & Frozen Conditions
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Subcat Reach on Llnk Routing Diagram for 201517 Post Development
Prepared by The LA Group, Printed 7/22/2021
'- ` HydroCADO 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC
201517 Post Development
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2
Area Listing (all nodes)
Area CN Description
(sq-ft) (s u bcatch me nt-n u m be rs)
59,545 39 >75% Grass cover, Good, HSG A (9, 10, 12, 13, 17)
541,910 74 >75% Grass cover, Good, HSG C (1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18)
24,797 98 Paved parking, HSG A (9, 10, 12, 13, 17)
196,905 98 Paved parking, HSG C (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17)
1,944 30 Woods, Good, HSG A (13)
38,823 70 Woods, Good, HSG C (13, 16)
863,923 77 TOTAL AREA
201517 Post Development
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3
Soil Listing (all nodes)
Area Soil Subcatchment
(sq-ft) Group Numbers
86,286 HSG A 9, 10, 12, 13, 17
0 HSG B
777,637 HSG C 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
0 HSG D
0 Other
863,923 TOTAL AREA
201517 Post Development
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4
Ground Covers (all nodes)
HSG-A HSG-B HSG-C HSG-D Other Total Ground Sub
(sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) Cover Nun
59,545 0 541,910 0 0 601,455 >75% Grass
cover, Good
24,797 0 196,905 0 0 221,701 Paved parking
1,944 0 38,823 0 0 40,767 Woods, Good
86,286 0 777,637 0 0 863,923 TOTAL AREA
201517 Post Development Type ll 24-hr 1 yr Rainfa11=2.15"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5
Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1: Subcat 1 Runoff Area=67,534 sf 20.37% Impervious Runoff Depth=0.73"
Tc=6.0 min CN=WQ Runoff=1.73 cfs 4,097 cf
Subcatchment2: Subcat 2 RunoffArea=21,817 sf 100.00% Impervious Runoff Depth=1.92"
Tc=6.0 min CN=98 Runoff=1.46 cfs 3,496 cf
Subcatchment3: Subcat 3 Runoff Area=22,961 sf 87.71% Impervious Runoff Depth=1.74"
Tc=6.0 min CN=WQ Runoff=1.39 cfs 3,327 cf
Subcatchment4: Subcat 4 Runoff Area=15,942 sf 48.79% Impervious Runoff Depth=1.15"
Tc=6.0 min CN=WQ Runoff=0.64 cfs 1,534 cf
Subcatchment5: Subcat 5 Runoff Area=38,206 sf 81.99% Impervious Runoff Depth=1.65"
Tc=6.0 min CN=WQ Runoff=2.19 cfs 5,262 cf
Subcatchment6: Subcat 6 Runoff Area=14,725 sf 87.91% Impervious Runoff Depth=1.74"
Tc=6.0 min CN=WQ Runoff=0.89 cfs 2,137 cf
Subcatchment7: Subcat 7 Runoff Area=28,841 sf 81.93% Impervious Runoff Depth=1.65"
Tc=6.0 min CN=WQ Runoff=1.66 cfs 3,970 cf
Subcatchment8: Subcat 8 Runoff Area=66,306 sf 59.80% Impervious Runoff Depth=1.32"
Tc=6.0 min CN=WQ Runoff=3.03 cfs 7,292 cf
Subcatchment9: Subcat 9 Runoff Area=45,002 sf 10.51% Impervious Runoff Depth=0.50"
Tc=6.0 min CN=WQ Runoff=0.79 cfs 1,867 cf
Subcatchment10: Subcat 10 Runoff Area=21,139 sf 59.14% Impervious Runoff Depth=1.16"
Tc=6.0 min CN=WQ Runoff=0.86 cfs 2,051 cf
Subcatchment 11: Subcat 11 Runoff Area=10,337 sf 80.61% Impervious Runoff Depth=1.63"
Tc=6.0 min CN=WQ Runoff=0.59 cfs 1,406 cf
Subcatchment12: Subcat 12 Runoff Area=11,391 sf 60.83% Impervious Runoff Depth=1.19"
Tc=6.0 min CN=WQ Runoff=0.47 cfs 1,128 cf
Subcatchment 13: Subcat 13 Runoff Area=321,071 sf 2.26% Impervious Runoff Depth=0.39"
Flow Length=532' Slope=0.0200 '/' Tc=18.2 min CN=WQ Runoff=2.72 cfs 10,479 cf
Subcatchment 14: Subcat 14 Runoff Area=72,741 sf 0.10% Impervious Runoff Depth=0.42"
Flow Length=127' Tc=7.3 min CN=WQ Runoff=1.06 cfs 2,569 cf
Subcatchment 15: Subcat 15 Runoff Area=14,583 sf 0.00% Impervious Runoff Depth=0.42"
Tc=6.0 min CN=74 Runoff=0.22 cfs 513 cf
Subcatchment 16: Subcat 16 Runoff Area=62,654 sf 0.00% Impervious Runoff Depth=0.41"
Flow Length=265' Slope=0.0400 '/' Tc=10.2 min CN=WQ Runoff=0.76 cfs 2,128 cf
201517 Post Development Type ll 24-hr 1 yr Rainfa11=2.15"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 6
Subcatchment 17: Subcat 17 Runoff Area=19,144 sf 56.60% Impervious Runoff Depth=1.24"
Tc=6.0 min CN=WQ Runoff=0.82 cfs 1,977 cf
Subcatchment 18: Subcat 18 Runoff Area=9,529 sf 0.00% Impervious Runoff Depth=0.42"
Tc=6.0 min CN=74 Runoff=0.15 cfs 335 cf
Pond 1P: HydrodynamicSeparator Peak Elev=378.82' Inflow=3.03 cfs 7,292 cf
18.0" Round Culvert n=0.012 L=75.0' S=0.0053 '/' Outflow=3.03 cfs 7,292 cf
Pond 2P: Forebay Peak EIev=370.14' Storage=2,907 cf Inflow=3.24 cfs 13,853 cf
Outflow=3.17 cfs 11,167 cf
Pond 3P: CB-9 Peak Elev=378.53' Inflow=3.09 cfs 7,399 cf
18.0" Round Culvert n=0.012 L=100.0' S=0.0050 '/' Outflow=3.09 cfs 7,399 cf
Pond 4P: Forebay Peak Elev=369.98' Storage=1,534 cf Inflow=0.64 cfs 1,534 cf
Outflow=0.00 cfs 0 cf
Pond 5P: HydrodynamicSeparator Peak Elev=381.91' Inflow=1.66 cfs 3,970 cf
12.0" Round Culvert n=0.012 L=33.0' S=0.0061 '/' Outflow=1.66 cfs 3,970 cf
Pond 6P: CB-7 Peak EIev=379.70' Inflow=0.89 cfs 2,137 cf
15.0" Round Culvert n=0.012 L=178.0' S=0.0087 '/' Outflow=0.89 cfs 2,137 cf
Pond SMP-1: Green Roof Peak EIev=412.00' Storage=16 cf Inflow=1.46 cfs 3,496 cf
Primary=0.00 cfs 0 cf Secondary=1.45 cfs 3,496 cf Outflow=1.45 cfs 3,496 cf
Pond SMP-2: Infiltration Basin Peak Elev=378.42' Storage=822 cf Inflow=2.80 cfs 6,874 cf
Discarded=1.54 cfs 6,874 cf Primary=0.00 cfs 0 cf Outflow=1.54 cfs 6,874 cf
Pond SMP-3: Bioretention Peak Elev=375.67' Storage=2,283 cf Inflow=3.03 cfs 7,292 cf
Outflow=1.29 cfs 7,292 cf
Pond SMP-4: Infiltration Chambers Peak EIev=373.90' Storage=0.043 af Inflow=4.48 cfs 10,726 cf
Discarded=1.52 cfs 10,726 cf Primary=0.00 cfs 0 cf Outflow=1.52 cfs 10,726 cf
Pond SMP-5: Pocket Pond Peak Elev=368.75' Storage=10,080 cf Inflow=3.92 cfs 13,034 cf
Outflow=0.25 cfs 12,970 cf
Link AP-1: AP-1 Inflow=1.73 cfs 4,097 cf
Primary=1.73 cfs 4,097 cf
Link AP-2: Existing Pond Inflow=0.76 cfs 2,128 cf
Primary=0.76 cfs 2,128 cf
LinkAP-3: AP-3 Inflow=1.59 cfs 16,466 cf
Primary=1.59 cfs 16,466 cf
LinkAP-4: AP-4 Inflow=2.72 cfs 10,479 cf
Primary=2.72 cfs 10,479 cf
LinkAP-5: AP-5 Inflow=0.22 cfs 513 cf
Primary=0.22 cfs 513 cf
201517 Post Development Type ll 24-hr 1 yr Rainfa11=2.15"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 7
Total Runoff Area = 863,923 sf Runoff Volume = 55,567 cf Average Runoff Depth = 0.77"
74.34% Pervious = 642,222 sf 25.66% Impervious = 221,701 sf
201517 Post Development Type ll 24-hr 10yr Rainfa11=3.75"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 8
Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1: Subcat 1 Runoff Area=67,534 sf 20.37% Impervious Runoff Depth=1.84"
Tc=6.0 min CN=WQ Runoff=4.62 cfs 10,373 cf
Subcatchment2: Subcat 2 RunoffArea=21,817 sf 100.00% Impervious Runoff Depth=3.52"
Tc=6.0 min CN=98 Runoff=2.59 cfs 6,392 cf
Subcatchment3: Subcat 3 Runoff Area=22,961 sf 87.71% Impervious Runoff Depth=3.26"
Tc=6.0 min CN=WQ Runoff=2.55 cfs 6,233 cf
Subcatchment4: Subcat 4 Runoff Area=15,942 sf 48.79% Impervious Runoff Depth=2.44"
Tc=6.0 min CN=WQ Runoff=1.37 cfs 3,242 cf
Subcatchment5: Subcat 5 Runoff Area=38,206 sf 81.99% Impervious Runoff Depth=3.14"
Tc=6.0 min CN=WQ Runoff=4.10 cfs 9,989 cf
Subcatchment6: Subcat 6 Runoff Area=14,725 sf 87.91% Impervious Runoff Depth=3.26"
Tc=6.0 min CN=WQ Runoff=1.63 cfs 4,002 cf
Subcatchment7: Subcat 7 Runoff Area=28,841 sf 81.93% Impervious Runoff Depth=3.14"
Tc=6.0 min CN=WQ Runoff=3.09 cfs 7,538 cf
Subcatchment8: Subcat 8 Runoff Area=66,306 sf 59.80% Impervious Runoff Depth=2.67"
Tc=6.0 min CN=WQ Runoff=6.18 cfs 14,760 cf
Subcatchment9: Subcat 9 Runoff Area=45,002 sf 10.51% Impervious Runoff Depth=1.37"
Tc=6.0 min CN=WQ Runoff=2.32 cfs 5,121 cf
Subcatchment10: Subcat 10 Runoff Area=21,139 sf 59.14% Impervious Runoff Depth=2.18"
Tc=6.0 min CN=WQ Runoff=1.56 cfs 3,836 cf
Subcatchment 11: Subcat 11 Runoff Area=10,337 sf 80.61% Impervious Runoff Depth=3.11"
Tc=6.0 min CN=WQ Runoff=1.10 cfs 2,678 cf
Subcatchment12: Subcat 12 Runoff Area=11,391 sf 60.83% Impervious Runoff Depth=2.21"
Tc=6.0 min CN=WQ Runoff=0.85 cfs 2,096 cf
Subcatchment 13: Subcat 13 Runoff Area=321,071 sf 2.26% Impervious Runoff Depth=1.27"
Flow Length=532' Slope=0.0200 '/' Tc=18.2 min CN=WQ Runoff=10.49 cfs 33,848 cf
Subcatchment 14: Subcat 14 Runoff Area=72,741 sf 0.10% Impervious Runoff Depth=1.42"
Flow Length=127' Tc=7.3 min CN=WQ Runoff=3.96 cfs 8,593 cf
Subcatchment 15: Subcat 15 Runoff Area=14,583 sf 0.00% Impervious Runoff Depth=1.42"
Tc=6.0 min CN=74 Runoff=0.82 cfs 1,720 cf
Subcatchment 16: Subcat 16 Runoff Area=62,654 sf 0.00% Impervious Runoff Depth=1.39"
Flow Length=265' Slope=0.0400 '/' Tc=10.2 min CN=WQ Runoff=2.96 cfs 7,234 cf
201517 Post Development Type ll 24-hr 10yr Rainfa11=3.75"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 9
Subcatchment 17: Subcat 17 Runoff Area=19,144 sf 56.60% Impervious Runoff Depth=2.50"
Tc=6.0 min CN=WQ Runoff=1.66 cfs 3,982 cf
Subcatchment 18: Subcat 18 Runoff Area=9,529 sf 0.00% Impervious Runoff Depth=1.42"
Tc=6.0 min CN=74 Runoff=0.54 cfs 1,124 cf
Pond 1P: HydrodynamicSeparator Peak Elev=379.35' Inflow=6.18 cfs 14,760 cf
18.0" Round Culvert n=0.012 L=75.0' S=0.0053 '/' Outflow=6.18 cfs 14,760 cf
Pond 2P: Forebay Peak EIev=370.29' Storage=3,151 cf Inflow=9.50 cfs 27,353 cf
Outflow=9.45 cfs 24,667 cf
Pond 3P: CB-9 Peak Elev=378.97' Inflow=5.73 cfs 13,991 cf
18.0" Round Culvert n=0.012 L=100.0' S=0.0050 '/' Outflow=5.73 cfs 13,991 cf
Pond 4P: Forebay Peak EIev=370.09' Storage=1,625 cf Inflow=1.37 cfs 3,242 cf
Outflow=1.23 cfs 1,694 cf
Pond 5P: HydrodynamicSeparator Peak Elev=382.48' Inflow=3.09 cfs 7,538 cf
12.0" Round Culvert n=0.012 L=33.0' S=0.0061 '/' Outflow=3.09 cfs 7,538 cf
Pond 6P: CB-7 Peak Elev=379.87' Inflow=1.63 cfs 4,002 cf
15.0" Round Culvert n=0.012 L=178.0' S=0.0087 '/' Outflow=1.63 cfs 4,002 cf
Pond SMP-1: Green Roof Peak EIev=412.01' Storage=28 cf Inflow=2.59 cfs 6,392 cf
Primary=0.00 cfs 0 cf Secondary=2.56 cfs 6,392 cf Outflow=2.56 cfs 6,392 cf
Pond SMP-2: Infiltration Basin Peak EIev=379.07' Storage=3,467 cf Inflow=7.51 cfs 17,254 cf
Discarded=3.28 cfs 17,254 cf Primary=0.00 cfs 0 cf Outflow=3.28 cfs 17,254 cf
Pond SMP-3: Bioretention Peak Elev=375.95' Storage=3,403 cf Inflow=6.18 cfs 14,760 cf
Outflow=4.79 cfs 14,760 cf
Pond SMP-4: Infiltration Chambers Peak Elev=374.86' Storage=0.123 af Inflow=8.28 cfs 20,224 cf
Discarded=1.52 cfs 20,224 cf Primary=0.00 cfs 0 cf Outflow=1.52 cfs 20,224 cf
Pond SMP-5: Pocket Pond Peak Elev=369.91' Storage=18,001 cf Inflow=11.70 cfs 31,482 cf
Outflow=1.42 cfs 31,392 cf
LinkAP-1: AP-1 Inflow=4.62 cfs 10,373 cf
Primary=4.62 cfs 10,373 cf
Link AP-2: Existing Pond Inflow=2.96 cfs 7,234 cf
Primary=2.96 cfs 7,234 cf
LinkAP-3: AP-3 Inflow=3.16 cfs 37,784 cf
Primary=3.16 cfs 37,784 cf
LinkAP-4: AP-4 Inflow=10.49 cfs 33,848 cf
Primary=10.49 cfs 33,848 cf
LinkAP-5: AP-5 Inflow=0.82 cfs 1,720 cf
Primary=0.82 cfs 1,720 cf
201517 Post Development Type ll 24-hr 10yr Rainfa11=3.75"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 10
Total Runoff Area = 863,923 sf Runoff Volume = 132,760 cf Average Runoff Depth = 1.84"
74.34% Pervious = 642,222 sf 25.66% Impervious = 221,701 sf
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 1
Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1: Subcat 1 Runoff Area=67,534 sf 20.37% Impervious Runoff Depth=3.88"
Tc=6.0 min CN=WQ Runoff=9.81 cfs 21,864 cf
Subcatchment2: Subcat 2 RunoffArea=21,817 sf 100.00% Impervious Runoff Depth=5.96"
Tc=6.0 min CN=98 Runoff=4.31 cfs 10,839 cf
Subcatchment3: Subcat 3 Runoff Area=22,961 sf 87.71% Impervious Runoff Depth=5.64"
Tc=6.0 min CN=WQ Runoff=4.35 cfs 10,794 cf
Subcatchment4: Subcat 4 Runoff Area=15,942 sf 48.79% Impervious Runoff Depth=4.63"
Tc=6.0 min CN=WQ Runoff=2.61 cfs 6,146 cf
Subcatchment5: Subcat 5 Runoff Area=38,206 sf 81.99% Impervious Runoff Depth=5.49"
Tc=6.0 min CN=WQ Runoff=7.09 cfs 17,485 cf
Subcatchment6: Subcat 6 Runoff Area=14,725 sf 87.91% Impervious Runoff Depth=5.65"
Tc=6.0 min CN=WQ Runoff=2.79 cfs 6,929 cf
Subcatchment7: Subcat 7 Runoff Area=28,841 sf 81.93% Impervious Runoff Depth=5.49"
Tc=6.0 min CN=WQ Runoff=5.35 cfs 13,196 cf
Subcatchment8: Subcat 8 Runoff Area=66,306 sf 59.80% Impervious Runoff Depth=4.91"
Tc=6.0 min CN=WQ Runoff=11.33 cfs 27,148 cf
Subcatchment9: Subcat 9 Runoff Area=45,002 sf 10.51% Impervious Runoff Depth=3.07"
Tc=6.0 min CN=WQ Runoff=5.15 cfs 11,526 cf
Subcatchment10: Subcat 10 Runoff Area=21,139 sf 59.14% Impervious Runoff Depth=3.91"
Tc=6.0 min CN=WQ Runoff=2.69 cfs 6,895 cf
Subcatchment 11: Subcat 11 Runoff Area=10,337 sf 80.61% Impervious Runoff Depth=5.46"
Tc=6.0 min CN=WQ Runoff=1.91 cfs 4,700 cf
Subcatchment12: Subcat 12 Runoff Area=11,391 sf 60.83% Impervious Runoff Depth=3.95"
Tc=6.0 min CN=WQ Runoff=1.45 cfs 3,747 cf
Subcatchment 13: Subcat 13 Runoff Area=321,071 sf 2.26% Impervious Runoff Depth=3.02"
Flow Length=532' Slope=0.0200 '/' Tc=18.2 min CN=WQ Runoff=25.43 cfs 80,734 cf
Subcatchment 14: Subcat 14 Runoff Area=72,741 sf 0.10% Impervious Runoff Depth=3.36"
Flow Length=127' Tc=7.3 min CN=WQ Runoff=9.35 cfs 20,346 cf
Subcatchment 15: Subcat 15 Runoff Area=14,583 sf 0.00% Impervious Runoff Depth=3.35"
Tc=6.0 min CN=74 Runoff=1.93 cfs 4,076 cf
Subcatchment 16: Subcat 16 Runoff Area=62,654 sf 0.00% Impervious Runoff Depth=3.31"
Flow Length=265' Slope=0.0400 '/' Tc=10.2 min CN=WQ Runoff=7.14 cfs 17,267 cf
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2
Subcatchment17: Subcat 17 Runoff Area=19,144 sf 56.60% Impervious Runoff Depth=4.61"
Tc=6.0 min CN=WQ Runoff=3.04 cfs 7,352 cf
Subcatchment 18: Subcat 18 Runoff Area=9,529 sf 0.00% Impervious Runoff Depth=3.35"
Tc=6.0 min CN=74 Runoff=1.26 cfs 2,663 cf
Pond 1P: HydrodynamicSeparator Peak EIev=380.70' Inflow=11.33 cfs 27,148 cf
18.0" Round Culvert n=0.012 L=75.0' S=0.0053 '/' Outflow=11.33 cfs 27,148 cf
Pond 2P: Forebay Peak EIev=370.41' Storage=3,363 cf Inflow=16.52 cfs 49,842 cf
Outflow=16.50 cfs 47,156 cf
Pond 3P: CB-9 Peak EIev=380.09' Inflow=9.88 cfs 24,413 cf
18.0" Round Culvert n=0.012 L=100.0' S=0.0050 '/' Outflow=9.88 cfs 24,413 cf
Pond 4P: Forebay Peak EIev=370.14' Storage=1,676 cf Inflow=2.61 cfs 6,146 cf
Outflow=2.60 cfs 4,598 cf
Pond 5P: HydrodynamicSeparator Peak Elev=383.62' Inflow=5.35 cfs 13,196 cf
12.0" Round Culvert n=0.012 L=33.0' S=0.0061 '/' Outflow=5.35 cfs 13,196 cf
Pond 6P: CB-7 Peak EIev=380.10' Inflow=2.79 cfs 6,929 cf
15.0" Round Culvert n=0.012 L=178.0' S=0.0087 '/' Outflow=2.79 cfs 6,929 cf
Pond SMP-1: Green Roof Peak EIev=412.01' Storage=46 cf Inflow=4.31 cfs 10,839 cf
Primary=0.00 cfs 0 cf Secondary=4.26 cfs 10,839 cf Outflow=4.26 cfs 10,839 cf
Pond SMP-2: Infiltration Basin Peak EIev=379.80' Storage=9,101 cf Inflow=15.86 cfs 36,205 cf
Discarded=5.78 cfs 36,205 cf Primary=0.00 cfs 0 cf Outflow=5.78 cfs 36,205 cf
Pond SMP-3: Bioretention Peak Elev=376.33' Storage=5,159 cf Inflow=11.33 cfs 27,148 cf
Outflow=7.69 cfs 27,148 cf
Pond SMP-4: Infiltration Chambers Peak EIev=376.60' Storage=0.254 af Inflow=14.22 cfs 35,207 cf
Discarded=1.52 cfs 33,644 cf Primary=0.73 cfs 1,563 cf Outflow=2.25 cfs 35,207 cf
Pond SMP-5: Pocket Pond Peak EIev=370.94' Storage=26,735 cf Inflow=24.25 cfs 63,280 cf
Outflow=9.79 cfs 63,171 cf
LinkAP-1: AP-1 Inflow=9.81 cfs 21,864 cf
Primary=9.81 cfs 21,864 cf
LinkAP-2: Existing Pond Inflow=7.14 cfs 17,267 cf
Primary=7.14 cfs 17,267 cf
LinkAP-3: AP-3 Inflow=13.76 cfs 75,573 cf
Primary=13.76 cfs 75,573 cf
LinkAP-4: AP-4 Inflow=25.43 cfs 80,734 cf
Primary=25.43 cfs 80,734 cf
Link AP-5: AP-5 Inflow=1.93 cfs 4,076 cf
Primary=1.93 cfs 4,076 cf
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3
Total Runoff Area = 863,923 sf Runoff Volume = 273,705 cf Average Runoff Depth = 3.80"
74.34% Pervious = 642,222 sf 25.66% Impervious = 221,701 sf
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4
Summary for Subcatchment 1: Subcat 1
Runoff = 9.81 cfs @ 11.97 hrs, Volume= 21,864 cf, Depth= 3.88"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
53,778 74 >75% Grass cover, Good, HSG C
13,755 98 Paved parking, HSG C
67,534 Weighted Average
53,778 79.63% Pervious Area
13,755 20.37% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 2: Subcat 2
Runoff = 4.31 cfs @ 11.96 hrs, Volume= 10,839 cf, Depth= 5.96"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
21,817 98 Paved parking, HSG C
21,817 100.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 3: Subcat 3
Runoff = 4.35 cfs @ 11.96 hrs, Volume= 10,794 cf, Depth= 5.64"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
2,821 74 >75% Grass cover, Good, HSG C
20,140 98 Paved parking, HSG C
22,961 Weighted Average
2,821 12.29% Pervious Area
20,140 87.71% Impervious Area
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 4: Subcat 4
Runoff = 2.61 cfs @ 11.97 hrs, Volume= 6,146 cf, Depth= 4.63"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
8,163 74 >75% Grass cover, Good, HSG C
7,779 98 Paved parking, HSG C
15,942 Weighted Average
8,163 51.21% Pervious Area
7,779 48.79% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 5: Subcat 5
Runoff = 7.09 cfs @ 11.96 hrs, Volume= 17,485 cf, Depth= 5.49"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
6,883 74 >75% Grass cover, Good, HSG C
31,323 98 Paved parking, HSG C
38,206 Weighted Average
6,883 18.01% Pervious Area
31,323 81.99% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 6: Subcat 6
Runoff = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf, Depth= 5.65"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 6
Area (s� CN Description
1,781 74 >75% Grass cover, Good, HSG C
12,944 98 Paved parking, HSG C
14,725 Weighted Average
1,781 12.09% Pervious Area
12,944 87.91% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 7: Subcat 7
Runoff = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf, Depth= 5.49"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
5,210 74 >75% Grass cover, Good, HSG C
23,631 98 Paved parking, HSG C
28,841 Weighted Average
5,210 18.07% Pervious Area
23,631 81.93% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 8: Subcat 8
Runoff = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf, Depth= 4.91"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
26,657 74 >75% Grass cover, Good, HSG C
39,649 98 Paved parking, HSG C
66,306 Weighted Average
26,657 40.20% Pervious Area
39,649 59.80% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 7
Summary for Subcatchment 9: Subcat 9
Runoff = 5.15 cfs @ 11.97 hrs, Volume= 11,526 cf, Depth= 3.07"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
8,754 39 >75% Grass cover, Good, HSG A
31,518 74 >75% Grass cover, Good, HSG C
1,488 98 Paved parking, HSG A
3,242 98 Paved parking, HSG C
45,002 Weighted Average
40,272 89.49% Pervious Area
4,730 10.51% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 10: Subcat 10
Runoff = 2.69 cfs @ 11.96 hrs, Volume= 6,895 cf, Depth= 3.91"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
7,287 39 >75% Grass cover, Good, HSG A
1,351 74 >75% Grass cover, Good, HSG C
10,089 98 Paved parking, HSG A
2,413 98 Paved parking, HSG C
21,139 Weighted Average
8,638 40.86% Pervious Area
12,501 59.14% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 11: Subcat 11
Runoff = 1.91 cfs @ 11.96 hrs, Volume= 4,700 cf, Depth= 5.46"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 8
Area (s� CN Description
2,004 74 >75% Grass cover, Good, HSG C
8,333 98 Paved parking, HSG C
10,337 Weighted Average
2,004 19.39% Pervious Area
8,333 80.61% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 12: Subcat 12
Runoff = 1.45 cfs @ 11.96 hrs, Volume= 3,747 cf, Depth= 3.95"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
3,967 39 >75% Grass cover, Good, HSG A
495 74 >75% Grass cover, Good, HSG C
5,730 98 Paved parking, HSG A
1,199 98 Paved parking, HSG C
11,391 Weighted Average
4,462 39.17% Pervious Area
6,929 60.83% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 13: Subcat 13
Runoff = 25.43 cfs @ 12.11 hrs, Volume= 80,734 cf, Depth= 3.02"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
38,049 39 >75% Grass cover, Good, HSG A
242,513 74 >75% Grass cover, Good, HSG C
7,214 98 Paved parking, HSG A
48 98 Paved parking, HSG C
1,944 30 Woods, Good, HSG A
31,303 70 Woods, Good, HSG C
321,071 Weighted Average
313,809 97.74% Pervious Area
7,262 2.26% Impervious Area
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 9
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
10.9 100 0.0200 0.15 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
7.3 432 0.0200 0.99 Shallow Concentrated Flow,
Short Grass Pasture Kv= 7.0 fps
18.2 532 Total
Summary for Subcatchment 14: Subcat 14
Runoff = 9.35 cfs @ 11.99 hrs, Volume= 20,346 cf, Depth= 3.36"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
72,667 74 >75% Grass cover, Good, HSG C
74 98 Paved parking, HSG C
72,741 Weighted Average
72,667 99.90% Pervious Area
74 0.10% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.0 100 0.0600 0.24 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
0.3 27 0.0400 1.40 Shallow Concentrated Flow,
Short Grass Pasture Kv= 7.0 fps
7.3 127 Total
Summary for Subcatchment 15: Subcat 15
Runoff = 1.93 cfs @ 11.97 hrs, Volume= 4,076 cf, Depth= 3.35"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
14,583 74 >75% Grass cover, Good, HSG C
14,583 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 10
Summary for Subcatchment 16: Subcat 16
Runoff = 7.14 cfs @ 12.02 hrs, Volume= 17,267 cf, Depth= 3.31"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
55,134 74 >75% Grass cover, Good, HSG C
0 98 Paved parking, HSG C
7,520 70 Woods, Good, HSG C
62,654 Weighted Average
62,654 100.00% Pervious Area
0 0.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
8.2 100 0.0400 0.20 Sheet Flow,
Grass: Short n= 0.150 P2= 2.60"
2.0 165 0.0400 1.40 Shallow Concentrated Flow,
Short Grass Pasture Kv= 7.0 fps
10.2 265 Total
Summary for Subcatchment 17: Subcat 17
Runoff = 3.04 cfs @ 11.96 hrs, Volume= 7,352 cf, Depth= 4.61"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
Area (s� CN Description
1,487 39 >75% Grass cover, Good, HSG A
6,822 74 >75% Grass cover, Good, HSG C
276 98 Paved parking, HSG A
10,560 98 Paved parking, HSG C
19,144 Weighted Average
8,309 43.40% Pervious Area
10,836 56.60% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Subcatchment 18: Subcat 18
Runoff = 1.26 cfs @ 11.97 hrs, Volume= 2,663 cf, Depth= 3.35"
Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Type II 24-hr 100yr Rainfa11=6.20"
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 11
Area (s� CN Description
9,529 74 >75% Grass cover, Good, HSG C
9,529 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
6.0 Direct Entry,
Summary for Pond 1 P: Hydrodynamic Separator
Inflow Area = 66,306 sf, 59.80% Impervious, Inflow Depth = 4.91" for 100yr event
Inflow = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf
Outflow = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf, Atten= 0%, Lag= 0.0 min
Primary = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 380.70' @ 11.96 hrs
Device Routing Invert Outlet Devices
#1 Primary 377.90' 18.0" Round Culvert L= 75.0' Ke= 0.500
Inlet/ Outlet Invert= 377.90' / 377.50' S= 0.0053 '/' Cc= 0.900
n= 0.012, Flow Area= 1.77 sf
Primary OutFlow Max=11.03 cfs @ 11.96 hrs HW=380.61' (Free Discharge)
L1=Culvert (Barrel Controls 11.03 cfs @ 6.24 fps)
Summary for Pond 2P: Forebay
Inflow Area = 128,317 sf, 60.98% Impervious, Inflow Depth = 4.66" for 100yr event
Inflow = 16.52 cfs @ 11.98 hrs, Volume= 49,842 cf
Outflow = 16.50 cfs @ 11.98 hrs, Volume= 47,156 cf, Atten= 0%, Lag= 0.5 min
Primary = 16.50 cfs @ 11.98 hrs, Volume= 47,156 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 370.41' @ 11.98 hrs Surf.Area= 1,773 sf Storage= 3,363 cf
Plug-Flow detention time= 65.2 min calculated for 47,156 cf(95% of inflow)
Center-of-Mass det. time= 30.0 min ( 817.7 - 787.6 )
Volume Invert Avail.Storage Storage Description
#1 366.00' 4,514 cf Custom Stage Data (Irregular)Listed below (Recalc)
Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area
(feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft)
366.00 50 34.0 0 0 50
367.00 291 74.0 154 154 398
368.00 605 111.0 439 592 950
369.00 1,031 146.0 809 1,401 1,678
370.00 1,557 176.0 1,285 2,686 2,463
371.00 2,114 194.0 1,828 4,514 3,024
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 12
Device Routing Invert Outlet Devices
#1 Primary 370.00' 25.0' long x 8.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00
2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.43 2.54 2.70 2.69 2.68 2.68 2.66 2.64 2.64
2.64 2.65 2.65 2.66 2.66 2.68 2.70 2.74
Primary OutFlow Max=16.13 cfs @ 11.98 hrs HW=370.40' (Free Discharge)
L1=Broad-Crested Rectangular Weir(Weir Controls 16.13 cfs @ 1.61 fps)
Summary for Pond 3P: CB-9
Inflow Area = 52,931 sf, 83.63% Impervious, Inflow Depth = 5.53" for 100yr event
Inflow = 9.88 cfs @ 11.96 hrs, Volume= 24,413 cf
Outflow = 9.88 cfs @ 11.96 hrs, Volume= 24,413 cf, Atten= 0%, Lag= 0.0 min
Primary = 9.88 cfs @ 11.96 hrs, Volume= 24,413 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 380.09' @ 11.96 hrs
Device Routing Invert Outlet Devices
#1 Primary 377.60' 18.0" Round Culvert L= 100.0' Ke= 0.500
Inlet/ Outlet Invert= 377.60' / 377.10' S= 0.0050 '/' Cc= 0.900
n= 0.012, Flow Area= 1.77 sf
Primary OutFlow Max=9.63 cfs @ 11.96 hrs HW=380.01' (Free Discharge)
L1=Culvert (Barrel Controls 9.63 cfs @ 5.45 fps)
Summary for Pond 4P: Forebay
Inflow Area = 15,942 sf, 48.79% Impervious, Inflow Depth = 4.63" for 100yr event
Inflow = 2.61 cfs @ 11.97 hrs, Volume= 6,146 cf
Outflow = 2.60 cfs @ 11.98 hrs, Volume= 4,598 cf, Atten= 0%, Lag= 0.7 min
Primary = 2.60 cfs @ 11.98 hrs, Volume= 4,598 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 370.14' @ 11.98 hrs Surf.Area= 932 sf Storage= 1,676 cf
Plug-Flow detention time= 161.0 min calculated for 4,598 cf(75% of inflow)
Center-of-Mass det. time= 67.3 min ( 838.8 - 771.6 )
Volume Invert Avail.Storage Storage Description
#1 366.00' 2,604 cf Custom Stage Data (Irregular)Listed below (Recalc)
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 13
Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area
(feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft)
366.00 22 25.0 0 0 22
367.00 174 51.0 86 86 184
368.00 355 70.0 259 345 376
369.00 592 89.0 468 814 630
370.00 886 107.0 734 1,548 927
371.00 1,237 126.0 1,057 2,604 1,298
Device Routing Invert Outlet Devices
#1 Primary 370.00' 20.0' long x 8.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00
2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.43 2.54 2.70 2.69 2.68 2.68 2.66 2.64 2.64
2.64 2.65 2.65 2.66 2.66 2.68 2.70 2.74
Primary OutFlow Max=2.48 cfs @ 11.98 hrs HW=370.14' (Free Discharge)
L1=Broad-Crested Rectangular Weir(Weir Controls 2.48 cfs @ 0.90 fps)
Summary for Pond 5P: Hydrodynamic Separator
Inflow Area = 28,841 sf, 81.93% Impervious, Inflow Depth = 5.49" for 100yr event
Inflow = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf
Outflow = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf, Atten= 0%, Lag= 0.0 min
Primary = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 383.62' @ 11.96 hrs
Device Routing Invert Outlet Devices
#1 Primary 381.11' 12.0" Round Culvert L= 33.0' Ke= 0.500
Inlet/ Outlet Invert= 381.11' / 380.91' S= 0.0061 '/' Cc= 0.900
n= 0.012, Flow Area= 0.79 sf
Primary OutFlow Max=5.22 cfs @ 11.96 hrs HW=383.54' (Free Discharge)
L1=Culvert (Barrel Controls 5.22 cfs @ 6.64 fps)
Summary for Pond 6P: CB-7
Inflow Area = 14,725 sf, 87.91% Impervious, Inflow Depth = 5.65" for 100yr event
Inflow = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf
Outflow = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf, Atten= 0%, Lag= 0.0 min
Primary = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 380.10' @ 11.96 hrs
Device Routing Invert Outlet Devices
#1 Primary 379.25' 15.0" Round Culvert L= 178.0' Ke= 0.500
Inlet/ Outlet Invert= 379.25' / 377.70' S= 0.0087 '/' Cc= 0.900
n= 0.012, Flow Area= 1.23 sf
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 14
Primary OutFlow Max=2.72 cfs @ 11.96 hrs HW=380.09' (Free Discharge)
L1=Culvert (Inlet Controls 2.72 cfs @ 3.11 fps)
Summary for Pond SMP-1: Green Roof
InflowArea = 21,817 sf,100.00% Impervious, Inflow Depth = 5.96" for 100yr event
Inflow = 4.31 cfs @ 11.96 hrs, Volume= 10,839 cf
Outflow = 4.26 cfs @ 11.96 hrs, Volume= 10,839 cf, Atten= 1%, Lag= 0.1 min
Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf
Secondary = 4.26 cfs @ 11.96 hrs, Volume= 10,839 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs/2
Peak Elev= 412.01' @ 11.96 hrs Surf.Area= 18,662 sf Storage= 46 cf
Plug-Flow detention time= 0.2 min calculated for 10,839 cf(100% of inflow)
Center-of-Mass det. time= 0.2 min ( 740.7 - 740.5 )
Volume Invert Avail.Storage Storage Description
#1 412.00' 8,818 cf Custom Stage Data (Prismatic)Listed below (Recalc)
Elevation Surf.Area Voids Inc.Store Cum.Store
(feet) (sq-ft) (%) (cubic-feet) (cubic-feet)
412.00 18,662 0.0 0 0
412.17 18,662 25.0 793 793
412.67 18,662 20.0 1,866 2,659
412.68 18,662 100.0 187 2,846
413.00 18,662 100.0 5,972 8,818
Device Routing Invert Outlet Devices
#1 Secondary 412.00' 10.000 in/hr Exfiltration over SurFace area
#2 Primary 412.78' 6.0" Horiz. Orifice/Grate C= 0.600
Limited to weir flow at low heads
Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=412.00' (Free Discharge)
L2=0rifice/Grate ( Controls 0.00 cfs)
Secondary OutFlow Max=4.32 cfs @ 11.96 hrs HW=412.01' (Free Discharge)
L1=Exfiltration (Exfiltration Controls 4.32 cfs)
Summary for Pond SMP-2: Infiltration Basin
InflowArea = 111,111 sf, 21.33% Impervious, Inflow Depth = 3.91" for 100yr event
Inflow = 15.86 cfs @ 11.98 hrs, Volume= 36,205 cf
Outflow = 5.78 cfs @ 12.11 hrs, Volume= 36,205 cf, Atten= 64%, Lag= 8.0 min
Discarded = 5.78 cfs @ 12.11 hrs, Volume= 36,205 cf
Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 15
Peak Elev= 379.80' @ 12.11 hrs Surf.Area= 9,984 sf Storage= 9,101 cf
Plug-Flow detention time= 11.5 min calculated for 36,167 cf(100% of inflow)
Center-of-Mass det. time= 11.5 min ( 809.2 - 797.6 )
Volume Invert Avail.Storage Storage Description
#1 378.00' 30,884 cf Custom Stage Data (Irregular)Listed below (Recalc)
Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area
(feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft)
378.00 1,292 156.0 0 0 1,292
379.00 5,304 296.0 3,071 3,071 6,333
380.00 11,368 426.0 8,146 11,217 13,811
381.00 29,363 798.0 19,667 30,884 50,050
Device Routing Invert Outlet Devices
#1 Discarded 378.00' 25.000 in/hr Exfiltration over SurFace area
#2 Primary 380.70' 70.0' long x 30.0' breadth Broad-Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63
Discarded OutFlow Max=5.75 cfs @ 12.11 hrs HW=379.80' (Free Discharge)
L1=Exfiltration (Exfiltration Controls 5.75 cfs)
Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=378.00' (Free Discharge)
L2=Broad-Crested Rectangular Weir( Controls 0.00 cfs)
Summary for Pond SMP-3: Bioretention
Inflow Area = 66,306 sf, 59.80% Impervious, Inflow Depth = 4.91" for 100yr event
Inflow = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf
Outflow = 7.69 cfs @ 12.03 hrs, Volume= 27,148 cf, Atten= 32%, Lag= 4.0 min
Primary = 7.69 cfs @ 12.03 hrs, Volume= 27,148 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 376.33' @ 12.04 hrs Surf.Area= 4,913 sf Storage= 5,159 cf
Plug-Flow detention time= 50.2 min calculated for 27,120 cf(100% of inflow)
Center-of-Mass det. time= 50.2 min ( 813.7 - 763.5 )
Volume Invert Avail.Storage Storage Description
#1 375.00' 8,837 cf Custom Stage Data (Irregular)Listed below (Recalc)
Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area
(feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft)
375.00 2,912 363.0 0 0 2,912
376.00 4,417 389.0 3,638 3,638 4,513
377.00 6,022 413.0 5,199 8,837 6,096
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 16
Device Routing Invert Outlet Devices
#1 Device 2 375.00' 2.000 in/hr Exfiltration over SurFace area
#2 Primary 371.70' 12.0" Round Culvert L= 30.0' Ke= 0.500
Inlet/ Outlet Invert= 371.70' / 371.40' S= 0.0100 '/' Cc= 0.900
n= 0.012, Flow Area= 0.79 sf
#3 Device 2 375.50' 18.0" Horiz. Orifice/Grate C= 0.600
Limited to weir flow at low heads
Primary OutFlow Max=7.67 cfs @ 12.03 hrs HW=376.31' (Free Discharge)
L2=Culvert (Inlet Controls 7.67 cfs @ 9.76 fps)
�1=Exfiltration (Passes < 0.23 cfs potential flow)
3=0rifice/Grate (Passes < 7.66 cfs potential flow)
Summary for Pond SMP-4: Infiltration Chambers
Inflow Area = 75,892 sf, 84.87% Impervious, Inflow Depth = 5.57" for 100yr event
Inflow = 14.22 cfs @ 11.96 hrs, Volume= 35,207 cf
Outflow = 2.25 cfs @ 12.18 hrs, Volume= 35,207 cf, Atten= 84%, Lag= 13.2 min
Discarded = 1.52 cfs @ 11.65 hrs, Volume= 33,644 cf
Primary = 0.73 cfs @ 12.18 hrs, Volume= 1,563 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Peak Elev= 376.60' @ 12.18 hrs Surf.Area= 0.100 ac Storage= 0.254 af
Plug-Flow detention time= 37.0 min calculated for 35,171 cf(100% of inflow)
Center-of-Mass det. time= 37.0 min ( 785.1 - 748.1 )
Volume Invert Avail.Storage Storage Description
#1A 373.00' 0.141 af 44.25'W x 98.91'L x 5.50'H Field A
0.553 af Overall - 0.201 af Embedded = 0.352 af x 40.0% Voids
#2A 373.75' 0.201 af ADS StormTech MC-3500 d +Capx 78 Inside#1
Effective Size= 70.4"W x 45.0"H => 15.33 sf x 7.17'L = 110.0 cf
Overall Size= 77.0"W x 45.0"H x 7.50'L with 0.33' Overlap
78 Chambers in 6 Rows
Cap Storage= +14.9 cf x 2 x 6 rows = 178.8 cf
0.342 af Total Available Storage
Storage Group A created with Chamber Wizard
Device Routing Invert Outlet Devices
#1 Discarded 373.00' 15.000 in/hr Exfiltration over SurFace area
#2 Primary 370.80' 12.0" Round Culvert L= 120.0' Ke= 0.500
Inlet/ Outlet Invert= 370.80' / 367.20' S= 0.0300 '/' Cc= 0.900
n= 0.013, Flow Area= 0.79 sf
#3 Device 2 376.50' 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s)
#4 Device 2 375.00' 3.0" Vert. Orifice/Grate C= 0.600
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 17
Discarded OutFlow Max=1.52 cfs @ 11.65 hrs HW=373.12' (Free Discharge)
L1=Exfiltration (Exfiltration Controls 1.52 cfs)
Primary OutFlow Max=0.70 cfs @ 12.18 hrs HW=376.60' (Free Discharge)
L2=Culvert (Passes 0.70 cfs of 7.96 cfs potential flow)
�3=Sharp-Crested Rectangular Weir(Weir Controls 0.42 cfs @ 1.04 fps)
4=0rifice/Grate (Orifice Controls 0.29 cfs @ 5.85 fps)
Summary for Pond SMP-5: Pocket Pond
Inflow Area = 189,262 sf, 47.95% Impervious, Inflow Depth = 4.01" for 100yr event
Inflow = 24.25 cfs @ 11.98 hrs, Volume= 63,280 cf
Outflow = 9.79 cfs @ 12.16 hrs, Volume= 63,171 cf, Atten= 60%, Lag= 10.7 min
Primary = 9.79 cfs @ 12.16 hrs, Volume= 63,171 cf
Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Starting Elev= 367.50' Surf.Area= 3,809 sf Storage= 4,075 cf
Peak Elev= 370.94' @ 12.16 hrs Surf.Area= 9,182 sf Storage= 26,735 cf (22,660 cf above start)
Plug-Flow detention time= 215.8 min calculated for 59,035 cf(93% of inflow)
Center-of-Mass det. time= 155.4 min ( 973.4 - 818.0 )
Volume Invert Avail.Storage Storage Description
#1 366.00' 27,309 cf Custom Stage Data (Irregular)Listed below (Recalc)
Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area
(feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft)
366.00 1,737 237.0 0 0 1,737
367.00 3,051 319.0 2,363 2,363 5,376
368.00 4,650 386.0 3,823 6,186 9,151
369.00 6,255 412.0 5,433 11,619 10,850
370.00 7,955 438.0 7,088 18,707 12,659
371.00 9,267 456.0 8,603 27,309 14,015
Device Routing Invert Outlet Devices
#1 Device 2 367.50' 3.0" Vert. Orifice/Grate C= 0.600
#2 Primary 367.00' 15.0" Round Culvert L= 125.0' Ke= 0.500
Inlet/ Outlet Invert= 367.00' / 365.75' S= 0.0100 '/' Cc= 0.900
n= 0.012, Flow Area= 1.23 sf
#3 Device 2 370.00' 30.0" x 30.0" Horiz. Orifice/Grate C= 0.600
Limited to weir flow at low heads
#4 Device 2 368.75' 8.0" W x 4.0" H Vert. Orifice/Grate C= 0.600
Primary OutFlow Max=9.79 cfs @ 12.16 hrs HW=370.93' (Free Discharge)
L2=Culvert (Barrel Controls 9.79 cfs @ 7.97 fps)
1=0rifice/Grate (Passes < 0.43 cfs potential flow)
3=0rifice/Grate (Passes < 29.09 cfs potential flow)
4=0rifice/Grate (Passes < 1.52 cfs potential flow)
201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20"
Prepared by The LA Group Printed 7/22/2021
HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 18
Summary for Link AP-1: AP-1
Inflow Area = 67,534 sf, 20.37% Impervious, Inflow Depth = 3.88" for 100yr event
Inflow = 9.81 cfs @ 11.97 hrs, Volume= 21,864 cf
Primary = 9.81 cfs @ 11.97 hrs, Volume= 21,864 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-2: Existing Pond
Inflow Area = 62,654 sf, 0.00% Impervious, Inflow Depth = 3.31" for 100yr event
Inflow = 7.14 cfs @ 12.02 hrs, Volume= 17,267 cf
Primary = 7.14 cfs @ 12.02 hrs, Volume= 17,267 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-3: AP-3
Inflow Area = 286,970 sf, 61.67% Impervious, Inflow Depth > 3.16" for 100yr event
Inflow = 13.76 cfs @ 12.02 hrs, Volume= 75,573 cf
Primary = 13.76 cfs @ 12.02 hrs, Volume= 75,573 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-4: AP-4
InflowArea = 432,182 sf, 7.17% Impervious, Inflow Depth = 2.24" for 100yr event
Inflow = 25.43 cfs @ 12.11 hrs, Volume= 80,734 cf
Primary = 25.43 cfs @ 12.11 hrs, Volume= 80,734 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Summary for Link AP-5: AP-5
Inflow Area = 14,583 sf, 0.00% Impervious, Inflow Depth = 3.35" for 100yr event
Inflow = 1.93 cfs @ 11.97 hrs, Volume= 4,076 cf
Primary = 1.93 cfs @ 11.97 hrs, Volume= 4,076 cf, Atten= 0%, Lag= 0.0 min
Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs
Attachment D
Storm Data
Job Name and# Saratoga Hospital- Myrtle Street
Minimum Runoff Reduction Volume
7/22/2021
RRv = [(P)(Rv*)(Ai)]/12
Where:
Ai = (S)(Aic)
Rv = 0.05 + 0.009(I)where I is 100% impervious
Ai = impervious cover targeted for runoff reduction
Aic = Total area of new impervious cover
P = 90%rainfall (see Figure 4.1 in NYS Stormwater Management Design Manual)
S =Hydrologic Soil Group (HSG) Speci�c Reduction Factor(S)
A=0.55, B=0.40, C=0.30, D=0.20
S (HSG A,C) 0.325 (10% A Soils, 90% C Soils)
Aic 4.30 acres
Rv (Minimum 0.2) 0.95
90%Rainfall 1.15
Ai 1.398
RRv = 0127 acre feet= 5,543 ft3
Stormwater Practice Sizing
Job Name and# Saiatoga Hospital Myrtle Street
Water Quality Volume Calculation
7/22/2021
W Qv=[(P)(Rv)(A)]/12
l�'here:
Rv=0.05+0.009(I)
I=impervious covei in percent
P=90%rainfall(see Figure 4.1 in NYS Stormwater Management Design Manual)
A=Area in acres
Required WQv
New Impercious
%Impervious 100.00%
Rv 0.95
90%Rainfall L15
Aiea in Squaie Feet 187,320
W Qv Required= 17054 fr' 0.392 aafr
Disturbed Impervious
%Impervious 100.00%
Rv 0.95
90%Rainfall L15
Aiea in Square Feet 29,447
W Qv Calculated= 2681 fr' 0.062 aafr
25%WQv Required= 670 fr' 0.015 aafr
Total W Qv Required= 17724�' 0.407 aafr
Calculated WQv
SDZP-1 Green Roof
%Impervious 100.00%
Rv 0.95
90%Rainfall L15
Area in Squaie Feet 21,817
W Qv Calculated= 1986 fr3 0.046 aafr
SMP-2 Infiltration basin
%Impervious 2133%
Rv 024
90%Rainfall L15
Aiea in Squaie Feet 111,111
W Qv Calculated= 2577 fr' 0.059 aafr
SMP-3 Bioretention Basin
%Impervious 59.80%
Rv 059
90%Rainfall L15
Aiea in Square Feet 66,306
W Qv Calculated= 3738 fr' 0.086 aafr
SMP-4 IInderground Infiltration Chambers
%Impervious 84.87%
Rv 0.81
90%Rainfall L 15
Areain Squaie Feet 75,892
W Qv Calculated= 5919 fr' 0136 aafr
SMP-5 Pocket Pond
%Impervious 41.57%
Rv 0.42
90%Rainfall L 15
Area in Square Feet 122,956
W Qv Calculated= 4998 fr' 0115 aafr
Note:Area being ueated by birretention basin not included in calculation
Job Name Tait Lane Reserve
Channel Protection Volume Calculation
5/8/2020 Revised: 1/5/2021
Pre Development
Step 1: Determine Qu
P = 2.15 in. (1-yr. storm)
Area= 19.8 acres
CN = 72
Ia= 0.778
Ia/P = 0.36
Tc = 0.33 Hrs.
Using Figure 4-II, TR-55 and Tc, determine Qu(csm/in)
Qu= 500 csm/in
Sten 2: Determine Oo/Oi
Using Figure B-1, DEC Manual Appendix B for T=24 hrs. and Qu, determine Qo/Qi
Qo/Qi = 0.035
Sten 3: Determine Vs/Vr
Vs/Vr= 0.682 - 1.43(Qo/Qi)+ 1.64 (Qo/Qi)^2- 0.804 (Qo/Qi)^3
Vs/Vr= 0.634
Sten 4: Determine Qd
Using Figure 2.1, TR-55 or SCS TR-16 and P, determine Qd(in of runof�
Qd= 0.4 in
Step 5: Determine Cpv
Area= 19.80 acres
Cpv =Vs = (Vs/Vr) * Qd* A/12
Cpv = 0.418 ac-ft
Cpv = 18225 ft3
Cpv Req.= 18225 ft3
Job Name Tait Lane Reserve
Channel Protection Volume Calculation
5/8/2020 Revised: 4/5/2021
Steu l: Determine Qu
P = 215 in. (1-yr. storm)
Area= 19.8 acres
CN= 77
Ia= 0.597
Ia/P= 028
Tc= 027 Hrs.
Using Figure 4-II,TR-55 and Tc,determine Qu(csm/in)
Qu= 600 csm/in
Steu 2:Determine Oo/Oi
Using Figure B-1,DEC Manual Appendix B for T=24 hrs. and Qu,determine Qo/Qi
Qo/Qi= 0.04
Steu 3:Determine Vs/Vr
Vs/Vr=0.682 - 1.43(Qo/Qi)+ 1.64 (Qo/Qi)^2-0.804(Qo/Qi)^3
Vs/Vr= 0.627
Steu 4:Determine Qd
Using Figure 21,TR-55 or SCS TR-16 and P,determine Qd(in of runof�
Qd= 0.5 in
Steu 5:Determine Cuv
Area= 19.80 acres
Cpv=Vs=(Vs/Vr) * Qd* A/12
Cpv= 0.518 ac-ft
Cpv= 22546 ft'
Pre Dev 18225 ft'
CPv Required= 4321 ft3
Volume reduction achieved through green infrastructure
SMP 1 = 1986 ft3
SMP 2= 2577 ft3
SMP 3 = 3738 ft3
SMP 4= 5919 ft3
SMP 5 = 4998 ft3
Cpv Provided= 19217 ft3
Appendix C
Map Set
Appendix D
SWPPP Inspection Form
Saratoga Hospital- Myrtle Street
WEEKLY SWPPP INSPECTION REPORT
Ins ector Name: Date:
Si nature re uired : Time:
Weather: Ins ection #:
Soil Conditions dr , saturated, etc :
Note: Digital photos,with date stamp required for all practices requiring corrective action, before and
after, to be attached to the inspection report.
YES NO N/A
1. ❑ ❑ ❑ Routine Inspection. Date of last inspection:
2. Inspection following rain event. Date/time of storm ending:
❑ ❑ ❑ Rainfall amount:
Recorded by:
3. ❑ ❑ ❑ Is this a final site inspection?
4. ❑ ❑ ❑ Has site undergone final stabilization?
❑ ❑ ❑ If so, have all temporary erosion and sediment controls been removed?
Site Disturbance (Indicate Locations on Plan)
YES NO N/A
1. ❑ ❑ ❑ Areas previously disturbed, but have not undergone active site work in the last 14 days?
2• ❑ ❑ ❑ Areas disturbed within last 14 days?
3. ❑ ❑ ❑ Areas expected to be disturbed in next 14 days?
4. � � � Do areas of steep slopes or complex stabilization issues exist?
If"YES" explain:
5. � � � Are there currently more than 5 acres of disturbed soil at the site? If so make sure there is an
approval letter from NYS DEC.
Additional Comments:
Inspection of Erosion and Sediment Control Devices
Type of Control Device Accumulation (if any) in % Repairs/Maintenance Needed
1.
2.
3.
4.
5.
6.
Stabilization/Runoff
YES NO N/A
1. ❑ ❑ ❑ Are all existing disturbed areas contained by control devices? Type of devices:
2. ❑ ❑ ❑ Are there areas that require stabilization within the next 14 days? Specify Area:
3. ❑ ❑ ❑ Have stabilization measures been initiated in inactive areas?
4. ❑ ❑ ❑ Is there current snow cover or frozen ground conditions?
5. ❑ ❑ ❑ Rills or gullies?
6. ❑ ❑ ❑ Slumping/deposition?
7• ❑ ❑ ❑ Loss of vegetation?
8. ❑ ❑ ❑ Lack of germination?
9• ❑ ❑ ❑ Loss of mulching?
Receiving Structures/Water Bodies (Indicate locations where runoff leaves the project site on the site plan)
YES NO N/A
1. ❑ ❑ ❑ Surface water swale or natural surface waterbody?
If natural waterbody:
Is waterbody located ❑ onsite, or ❑ adjacent to property boundary?
Description of condition:
2• ❑ ❑ ❑ Municipal or community system?
Inspect locations where runoff from project site enters the receiving waters and indicate if there is
evidence of:
a• ❑ ❑ ❑ Rills or gullies?
b• ❑ ❑ ❑ Slumping/deposition?
�• ❑ ❑ ❑ Loss of vegetation?
d• ❑ ❑ ❑ Undermining of structures?
e. ❑ ❑ ❑ Was there a discharge into the receiving water on the day of inspection?
f. ❑ ❑ ❑ Is there evidence of turbidity, sedimentation, or oil in the receiving waters?
Additional Comments:
Inspection of Post-Construction Stormwater Management Control Devices
Type of Control Device Phase of Construction Repairs/Maintenance Needed
1.
2.
3.
4.
General Site Condition
YES NO N/A
1. ❑ ❑ ❑ Have action items from previous reports been addressed?
2. ❑ ❑ ❑ Does routine maintenance of protection components occur on a regular basis?
3. ❑ ❑ ❑ Does cleaning and/or sweeping affected roadways occur, at minimum, daily?
4• ❑ ❑ ❑ Is debris and litter removed on a monthly basis, or as necessary?
5• ❑ ❑ ❑ Is the site maintained in an orderly manner?
Describe the condition of all natural waterbodies within or adjacent to the Project that receive runoff from the site:
Contractors progress over last 7 days:
Anticipated work to be begun in the next 7 days:
Additional Comments:
Visual Observations
YES NO N/A
1. ❑ ❑ ❑ All erosion and sediment control measures have been installed/constructed?
2• ❑ ❑ ❑ All erosion and sediment control measures are being maintained properly?
SUMMARY OF ACTION ITEMS TO REPAIR/REPLACE/MAINTAIN/CORRECT DEFICIENCIES
Action Reported To (no signature required):
Company:
Appendix E
Other SWPPP Forms
Construction Sequence
SWPPP Plan Changes
Spill Response Form
Stormwater Management Practice Maintenance Log
The operator shall prepare a summary of construction status using the Construction
Sequence Form below once every month. Significant deviations to the sequence and
reasons for those deviations (i.e. weather, subcontractor availability, etc.), shall be
noted by the contractor. The schedule shall be used to record the dates for initiation of
construction, implementation of erosion control measures, stabilization, etc. A copy of
this table will be maintained at the construction site and updated in addition to the
individual Inspection Reports completed for each inspection.
Construction Sequence Form
Construction Activities Date
(Identify name of planned practices) Complete
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
STORM WATER POLLUTION PREVENTION PLAN
PLAN CHANGES, AUTHORIZATION, AND CHANGE CERTIFICATION
CHANGES REQUIRED TO THE POLLUTION PREVENTION PLAN:
REASONS FOR CHANGES:
REQUESTED BY:
DATE:
AUTHORIZED BY:
DATE:
CERTIFICATION OF CHANGES:
I certify under penalty of law that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gathered and evaluated the information submitted. Based
on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that false
statements made herein are punishable as a Class A misdemeanor pursuant to Section
210.45 of the penal code.
SIGNATURE:
DATE:
SPILL RESPONSE REPORT
Within 1 hour of a spill discovery less than 2 gallons in volume the following must be
notified:
Kevin Ronayne
(518) 580-2452
Within 1 hour of a spill discovery greater than 2 gallons the following must be notified:
Kevin Ronayne
NYSDEC Spill Response Hotline 1-800-457-7362
Spill Response Contractor
Material Spilled:
Approximate Volume:
Location:
Distance to nearest down gradient drainage:
Distance to nearest down gradient open water:
Temporary control measures in place:
Appendix F
SPDES General Permit GP-0-20-001
:�
3 NEWY�RK p�partmenxa[ PREFACE
,`� _ �`i<'+n�,�.n: En�irAnrnental
- �r� Canservaiian
� Pursuant to Section 402 of the Clean Water Act("CWA"),stormwater discharges
from certain cons[ruc[ion activi[ies are unlawful unless they are authorized by a National
NEVJ V[7f1k�TATE Pollu[an[Discharge Elimina[ion System("NPDES')permit or by a state permit program.
S�EPARTMSNT�pF ENVIROM1FMEN7AL C��NSERVF�TI�N New York administers the approved State Pollutant Discharge Elimination System
(SPDES)program with permits issued in accordance with the New York State
SP�€5 GENERAL PEk�MIT Environmental Conservation Law(ECL)Article 17,Titles 7,8 and Article 70.
FQR ST�RM1AWA"f�R OkSCHAftGES
From An owneroropera[orof a construction activitythat is eligible for coverage under
this permit must obtain coverage prior to the commencemen[of cons[ruc[ion ac[iviry.
CONSFRLICTIOW RGIIVIYY Activities that fitthe definition of"construction activi[y',as defined under 40 CFR
122.26(b)(14)(x),(15)(i),and(15)(ii),constitute construction of a poin[source and
Perrni[No,GP-q-2{7-fl01 therefore,pursuantto ECL section 17-0505 and 17-0701,the owneroropera[ormust
have coverage under a SPDES permit prior to commencing conshuc[ion ac[ivity.The
Issucd 4��ir=_uani la Artiole 17,Titlas 7.8 and Art�cle 70 owneroroperatorcannotwait until there is an actual discharge from the consfruc[ion si[e
of ihe Enwranmenlal Gonaervat�an Law to obtain permit coverage.
*Note:The italicized words/phrases within this permit are defined in Appendix A.
Effecnve C�ate .l�anuary:'g,2a2U Exp�fat�on 6d[8..lanud�l=�.��1L°+
J[�lan J F[-rrg�:snn
ChieF Pem'ii1 Adrr�inistra',vr
4'--l-��{ - _ --- -
�� -
/5ulhanx�:d Segnalure +� �73te
A��Jre�:s HYS 13�C
IJivisivn df Envir4nrnan9al Peimils
625 Rrv3tlway.Aih Fleor
A�6anv.Iti Y 1.^,233-1 i5[]
NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION K. Requirementto Obtain Coverage Under an Alternative Permit...........................35
SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM L. Proper Operation and Maintenance....................................................................36
CONSTRUCTION ACTIVITIES M. Inspection and Entry...........................................................................................36
N. PermitActions.....................................................................................................37
Table of Contents o. oefinitions...........................................................................................................37
P. Re-OpenerClause..............................................................................................37
Part 1.PERMIT COVERAGE AND LIMITATIONS.............................................................1 Q� Penalties for Falsification of Forms and Reports.................................................37
A. PermitApplication.................................................................................................1
R. Other Permits......................................................................................................38
B. Effluent Limitations Applicable to Discharges from Construction Activities...........1 APPENDIX A—Acronyms and Definitions.......................................................................39
C. Post-construction Stormwater Management Practice Requirements....................4 Acronyms......................................................................................................................39
D. Maintainin Water Qualit .. . . . . 8 Definitions.....................................................................................................................40
9 Y............................................................................... APPENDIX B—Required SWPPP Components by Project Type....................................48
E. Eligibility UnderThis General Permit.....................................................................9
F. Activities Which Are Ineligible for Coverage Under This General Permit..............9 Table 1..........................................................................................................................48
Table2..........................................................................................................................50
Part II.PERMIT COVERAGE...........................................................................................12 APPENDIX C—Watersheds Requiring Enhanced Phosphorus Removal........................52
A. How to Obtain Coverage.....................................................................................12 APPENDIX D—Watersheds with Lower Disturbance Threshold.....................................58
B. Notice of Intent(NOI)Submittal..........................................................................13 APPENDIX E—303(d)Segments Impaired by Construction Related Pollutant(s)...........59
C. PermitAuthorization............................................................................................13 .
D. General Requirements For Owners or Operators With Permit Coverage...........15 APPENDIX F—List of NYS DEC Regional Offices..........................................................65
E. Permit Coverage for Discharges Authorized Under GP-0-15-002.......................17
F. Change of Owner or Operator.............................................................................17
Part III.STORMWATER POLLUTION PREVENTION PLAN(SWPPP)...........................18
A. General SWPPP Requirements..........................................................................18
B. Required SWPPP Contents................................................................................20
C. Required SWPPP Components by ProjectType.................................................24
Part IV.INSPECTION AND MAINTENANCE REQUIREMENTS.....................................24
A. General Construction Site Inspection and Maintenance Requirements..............24
B. Contractor Maintenance Inspection Requirements.............................................24
C. Qualified Inspector Inspection Requirements......................................................25
Part V.TERMINATION OF PERMIT COVERAGE...........................................................29
A. Termination of Permit Coverage.........................................................................29
Part VI.REPORTING AND RETENTION RECORDS......................................................31
A. Record Retention................................................................................................31
B. Addresses...........................................................................................................31
Part VII.STANDARD PERMIT CONDITIONS..................................................................31
A. Duty to Comply....................................................................................................31
B. Continuation of the Expired General Permit........................................................32
C. Enforcement........................................................................................................32
D. Need to Halt or Reduce Activity Not a Defense...................................................32
E. DutytoMitigate...................................................................................................33
F. Duty to Provide Information.................................................................................33
G. Other Information................................................................................................33
H. Signatory Requirements......................................................................................33
I. PropertyRights...................................................................................................35
J. Severability..........................................................................................................35
(Parc i)
Part 1.PERMIT COVERAGE AND LIMITATIONS (��rc�.B.��
deviation or alternative design and provide information which demonstrates that
A. Permit Application the deviation or alternative design is equivalent to the technical standard.
This permit authorizes stormwater discharges to surface waters of[he Sta[e from a. Erosion and Sediment Controls.Design,install and maintain effective
the following cons[ruc[ion ac[ivi[ies identified within 40 CFR Parts 12226(b)(14)(x), erosion and sediment controls to minimize the discharge of pollutan[s and
12226(b)(15)(i)and 122.26(b)(15)(ii),provided all of the eligibility provisions of this prevent a violation of the wa[er quality s[andards.At a minimum,such
permit are met: controls must be designed,installed and maintained to:
1. Cons[ruc[ion activities involving soil disturbances of one(1)or more acres; (i) Minimize soil erosion through application of runoff control and soil
including disturbances of less than one acre that are part of a largercommon stabilization control measure to minimize pollu[an[discharges;
plan ofdevelopmen[or sale that will ultimately disturb one or more acres of
land;excluding rou[ine maintenance ac[iviry that is pertormed to maintain the (ii) Control stormwater discharges,including both peak flowrates and total
original line and grade,hydraulic capacity or original purpose of a facility; stormwater volume,to minimize channel and streambank erosion and
scour in the immediate vicinity of the discharge points;
2. Cons[ruc[ion ac[ivi[ies involving soil disturbances of less than one(1)acre
where the Department has determined that a SPDES permit is required for (iii) Minimize the amount of soil exposed during cons[ruc[ion ac[iviry;
stormwater discharges based on the potential for contribution to a violation of a
water quality s[andard or for significant contribution of pollu[ants to surface (iv) Minimize the disturbance of s[eep slopes;
waters of the S[a[e.
(v) Minimize sediment discharges from the site;
3. Construc[ion activities located in the watershed(s)identified in Appendix D that
involve soil disturbances between five thousand(5,000)square feet and one (vi) Provide and maintain na[ural buffers around surtace waters,direct
(1)acre of land. stormwater to vegetated areas and maximize stormwater infiltration to
reduce pollutan[discharges,unless infeasible;
B. Effluent Limitations Applicable to Discharges from Construction Activities (vii) Minimize soil compaction.Minimizing soil compaction is not required
where the intended function of a specific area of the site dictates that it
Discharges authorized by this permit must achieve, at a minimum, the effluent be compacted;
limitations in Part I.B.1.(a)—(f)of this permit.These limitations representthe degree of
effluent reduction attainable by the application of best practicable technology currently (viii)Unless infeasible,preserve a sufficient amount of topsoil to complete
available. soil restoration and establish a uniform,dense vegetative cover;and
1. ErosionandSedimentControlRequirements-Theowneroroperatormust
select,design,install,implement and maintain control measures to minimize (ix) Minimize dust.On areas of exposed soil,minimize dust through the
the discharge of pollu[an[s and prevent a violation of the wa[er quality appropriate application of water or other dust suppression techniques
s[andards.The selection,design,installation,implementation,and to control the generation of pollutants that could be discharged from
maintenance of these control measures must meet the non-numeric effluent the site.
limitations in Part I.B.1.(a)—(f)of this permit and be in accordance with the
New York State Standards and Specifications for Erosion and Sediment b. Soil Stabilization.In areas where soil disturbance activity has temporarily
Control,dated November 2016,using sound engineering judgment.Where or permanently ceased,the application of soil stabilization measures must
control measures are not designed in conformance with the design criteria be initiated by the end of the next business day and completed within
included in the technical standard,the owneroroperator must include in the fourteen(14)days from the date the current soil disturbance activity ceased.
S[ormwa[er Pollu[ion Preven[ion Plan("SWPPP")the reason(s)for the For construction sites that direc[ly discharge to one of the 303(d)segments
1 2
(Parc i e�.e) (Parc i.e.�.e.�iip
listed in Appendix E or is located in one of the watersheds listed in (iii) Fuels,oils,or other pollutan[s used in vehicle and equipment operation
Appendix C,the application of soil stabilization measures must be initiated and maintenance;
by the end of the next business day and completed within seven(7)days
from the date the current soil disturbance activity ceased.See Appendix A (iv) Soaps or solvents used in vehicle and equipment washing;and
for definition of Temporarily Ceased.
(v) Toxic or hazardous substances from a spill or other release.
c. Dewatering.Discharges from dewatering activities,including discharges
from dewa[ering of trenches and excavations,must be managed by f. Surtace Outlets.When discharging from basins and impoundments,the
appropriate control measures. outlets shall be designed,constructed and maintained in such a manner
that sediment does not leave the basin or impoundment and that erosion at
d. Pollution Prevention Measures.Design,install,implement,and maintain or below the outlet does not occur.
effective pollution prevention measures to minimize the discharge of C. Post-construction Stormwater Management Practice Requirements
pollu[an[s and prevent a violation of the water quality s[andards.At a
minimum,such measures must be designed,installed,implemented and 1. The owneroropera[orof a construc[ion ac[ivitythat requires post-construction
maintained to: stormwater management practices pursuant to Part III.C.of this permit must
select,design,install,and maintain the practices to meetthe performance
(i) Minimize the discharge of pollutants from equipment and vehicle cri[eria in the New York State Stormwater Management Design Manual
washing,wheel wash water,and other wash waters.This applies to ("Design Manual"),dated January 2015,using sound engineering judgment.
washing operations that use clean water only.Soaps,detergents and Where post-construction stormwater management practices("SMPs")are not
solvents cannot be used; designed in conformance with the performance cri[eria in the Design Manual,
the owner or opera[or must include in the SWPPP the reason(s)for the
(ii) Minimize the exposure of building materials,building products, deviation or alternative design and provide information which demonstrates that
construction wastes,trash,landscape materials,fertilizers,pesticides, the deviation or alternative design is equivalen[to the technical standard.
herbicides,detergents,sanitary waste,hazardous and toxic waste,and
other materials present on the site to precipitation and to stormwater. 2. The owneror opera[or of a cons[ruction activiry that requires post-construction
Minimization of exposure is not required in cases where the exposure stormwater management practices pursuantto Part III.C.of this permit must
to precipitation and to stormwater will not result in a discharge of design the practices to meet the applicable sizing criteria in Part I.C.2.a.,b.,c.
pollutan[s,or where exposure of a specific material or product poses or d.of this permit.
little risk of stormwater contamination(such as final products and
materials intended for outdoor use);and a. Sizing Criteria for New Development
(iii) Prevent the discharge of pollutants from spills and leaks and (i) Runoff Reduction Volume("RRv"): Reduce the total Water Quality
implement chemical spill and leak prevention and response Volume("WQv")by application of RR techniques and standard SMPs
procedures. with RRv capacity.The total WQv shall be calculated in accordance
with the criteria in Section 4.2 of the Design Manual.
e. Prohibited Discharges.The following discharges are prohibited:
(ii) Minimum RRv and Treatment of Remaining Total WQv:Construction
(i) Wastewater from washout of concrete; activities that cannot meet the criteria in Part I.C.2.a.(i)of this permit
due to site limitations shall direct runoff from all newly constructed
(ii) Wastewater from washout and cleanout of stucco,paint,form release impervious areas to a RR technique or standard SMP with RRv
oils,curing compounds and other construction materials; capacity unless infeasible.The specific site limitations that preventthe
reduction of 100%of the WQv shall be documented in the SWPPP.
3 4
(Parc i.cza.�ii) (Parc i c z.e i)
For each impervious area that is not directed to a RR technique or calculated in accordance with the criteria in Section 10.3 of the Design
standard SMP with RRv capacity,the SWPPP must include Manual.
documentation which demonstrates that all options were considered
and for each option explains why it is considered infeasible. (ii) Minimum RRv and Treatment of Remaining Total WQv:Cons[ruc[ion
In no case shall the runoff reduction achieved from the newly ac[ivi[ies that cannot meet the criteria in Part I.C.2.b.(i)of this permit
constructed impervious areas be less than the Minimum RRv as due to si[e limi[a[ions shall direct runoff from all newly constructed
calculated using the criteria in Section 4.3 of the Design Manual. impervious areas to a RR technique or standard SMP with RRv
The remaining portion of the total WQv that cannot be reduced shall be capacity unless infeasible.The specific si[e limi[a[ions that prevent the
treated by application of standard SMPs. reduction of 100%of the WQv shall be documented in the SWPPP.
For each impervious area that is not directed to a RR technique or
(iii) Channel Protection Volume("Cpv"):Provide 24 hour extended standard SMP with RRv capacity,the SWPPP must include
detention of the post-developed 1-year,24-hour storm event; documentation which demonstrates that all options were considered
remaining after runoff reduction.The Cpv requirement does not apply and for each option explains why it is considered infeasible.
when: In no case shall the runoff reduction achieved from the newly
(1)Reduction of the entire Cpv is achieved by application of runoff constructed impervious areas be less than the Minimum RRv as
reduction techniques or infiltration systems,or calculated using the criteria in Section 10.3 of the Design Manual.
(2)The site discharges directly to tidal waters,or fifth order or larger The remaining portion of the total WQv that cannot be reduced shall be
streams. treated by application of standard SMPs.
(iv) Overbank Flood Control Criteria("Qp"):Requires storage to attenuate (iii) Channel Protection Volume(Cpv):Provide 24 hour extended detention
the post-development 10-year,24-hour peak discharge rate(Qp)to of the post-developed 1-year,24-hour storm event;remaining after
predevelopment rates.The Qp requirement does not apply when: runoff reduction.The Cpv requirement does not apply when:
(1)the site discharges directly to tidal waters or fifth order or larger (1)Reduction of the entire Cpv is achieved by application of runoff
streams,or reduction techniques or infiltration systems,or
(2)A downstream analysis reveals that overbank control is not (2)The site discharges directly to tidal waters,or fifth order or larger
required. streams.
(v) Extreme Flood Control Criteria("Qf"):Requires storage to attenuate (iv) Overbank Flood Control Criteria(Qp):Requires storage to attenuate
the post-development 100-year,24-hour peak discharge rate(Qf)to the post-development 10-year,24-hour peak discharge rate(Qp)to
predevelopment rates.The Qf requirement does not apply when: predevelopment rates.The Qp requirement does not apply when:
(1)the site discharges directly to tidal waters or fifth order or larger (1)the site discharges directly to tidal waters or fifth order or larger
streams,or streams,or
(2)A downstream analysis reveals that overbank control is not (2)A downstream analysis reveals that overbank control is not
required. required.
b. Sizing Criteria for New Development in Enhanced Phosphorus (v) Extreme Flood Control Criteria(Qf):Requires storage to attenuate the
Removal Watershed post-development 100-year,24-hour peak discharge rate(Qf)to
predevelopment rates.The Qf requirement does not apply when:
(i) Runoff Reduction Volume(RRv): Reduce the total Water Quality (1)the site discharges directly to tidal waters or fifth order or larger
Volume(WQv)by application of RR techniques and standard SMPs streams,or
with RRv capacity.The total WQv is the runoff volume from the 1-year, (2)A downstream analysis reveals that overbank control is not
24 hour design storm over the post-developed watershed and shall be required.
5 6
(Pam cz.q (Pam cz.d)
c. Sizing Criteria for Redevelopment Activity d. Sizing Criteria for Combination of Redevelopment Activity and New
Development
(i) Water Quality Volume(WQv):The WQv treatment objective for Construction projects that include both New Development and Redevelopment
redevelopmen[ac[ivity shall be addressed by one of the following Activity shall provide post-construction stormwater management controls that
options.Redevelopmen[activities located in an Enhanced Phosphorus
Removal Watershed(see Part III.B.3.and Appendix C of this permit) meet the sizing criteria calculated as an aggregate of the Sizing Criteria in Part
shall calculate the WQv in accordance with Section 10.3 of the Design I.C.2.a.or b.of this permit for the New Development portion of the project and
Manual.All other redevelopment ac[ivi[ies shall calculate the WQv in Part I.C.2.c of this permitfor RedevelopmentActivity portion of the project.
accordance with Section 42 of the Design Manual.
(1)Reduce the existing impervious cover by a minimum of 25%of the D. Maintaining Water Quality
total disturbed, impervious area. The Soil Restoration criteria in
Section 5.1.6 of the Design Manual must be applied to all newly The Department expects that compliance with the conditions of this permit will control
created pervious areas,or discharges necessary to meet applicable wa[er quality standards.It shall be a violation
(2)Capture and treat a minimum of 25%of the WQv from the disturbed, of the ECL for any discharge to either cause or contribute to a violation of wa[er quality
impervious area by the application of standard SMPs;or reduce 25% s[andards as contained in Parts 700 through 705 of Title 6 of the Official Compilation of
of the WQv from the disturbed,impervious area by the application of Codes,Rules and Regulations of the State of New York,such as:
RR techniques or standard SMPs with RRv capacity.,or
(3)Capture and treat a minimum of 75%of the WQv from the disturbed, 1. There shall be no increase in turbidity thatwill cause a substantial visible contrast
impervious area as well as any additional runoff from tributary areas to natural conditions;
by application of the alternative practices discussed in Sections 9.3
and 9.4 of the Design Manual.,or 2. There shall be no increase in suspended,colloidal or settleable solids that will
(4)Application of a combination of 1, 2 and 3 above that provide a cause deposition or impair the waters for their best usages;and
weighted average of at least two of the above methods.Application
of this method shall be in accordance with the criteria in Section
92.1(B)(IV)of the Design Manual. 3. There shall be no residue from oil and floating substances,nor visible oil film,nor
globules of grease.
If there is an existing post-construction stormwater management
practice located on the site that captures and treats runoff from the If there is evidence indicating that the stormwater discharges authorized by this permit
impervious area that is being disturbed, the WQv treatment option are causing,have the reasonable potential to cause,or are contributing to a violation of
selected must,at a minimum,provide treatment equal to the treatment the wa[er quality s[andards;the owner or opera[or must take appropriate corrective
that was being provided by the existing practice(s)if that treatment is action in accordance with Part IV.C.5. of this general permit and document in
greater than the treatment required by options 1—4 above. accordance with Part IV.C.4. of this general permit. To address the water quality
s[andard violation the owner or opera[or may need to provide additional information,
(ii) Channel Protection Volume(Cpv): Not required if there are no include and implement appropriate controls in the SWPPP to correct the problem,or
changes to hydrology that increase the discharge rate from the project obtain an individual SPDES permit.
site. If there is evidence indicating that despite compliance with the terms and conditions of
this general permit it is demonstrated that the stormwater discharges authorized by this
(iii) Overbank Flood Control Criteria(Qp):Not required if there are no permit are causing or contributing to a violation of wa[er quality standards,or if the
changes to hydrology that increase the discharge rate from the project Department determines that a modification of the permit is necessary to prevent a
site. violation of wa[er qualiry s[andards,the authorized discharges will no longer be eligible
for coverage underthis permit. The Department may require the owneroropera[orto
(iv) Extreme Flood Control Criteria(Qf):Not required if there are no obtain an individual SPDES permitto continue discharging.
changes to hydrology that increase the discharge rate from the project
site
7 8
(Parc i.e) (Parc i F a)
E. Eligibility Under This General Permit opera[or has obtained a permit issued pursuantto 6 NYCRR Part 182 forthe
project or the Department has issued a letter of non-jurisdiction for the project.
1. This permit may authorize all discharges of stormwaterfrom cons[ruc[ion All documentation necessary to demonstrate eligibility shall be maintained on
activity to surface waters of[he S[a[e and groundwa[ers except for ineligible site in accordance with Part II.D.2 of this permit;
discharges identified under subparagraph F.of this Part.
5. Discharges which either cause or contribute to a violation of water qualiry
2. Except for non-stormwater discharges explicitly listed in the next paragraph, standards adopted pursuant to the ECL and its accompanying regulations;
this permit only authorizes stormwater discharges;including stormwater runoff,
snowmelt runoff,and surtace runoff and drainage,from construc[ion ac[ivi[ies. 6. Construction activities for residential,commercial and institutional projects:
3. Notwithstanding paragraphs E.1 and E2 above,the following non-stormwater a. Where the discharges from the cons[ruc[ion activities are tributary to waters
discharges are authorized by this permit: those listed in 6 NYCRR 750- of the state classified as AA or AA-s;and
1.2(a)(29)(vi),with the following exception:"Discharges from firefighting
activities are authorized only when the firefighting activities are b. Which are undertaken on land with no existing impervious cover,and
emergencies/unplanned";waters to which other components have not been
added that are used to control dust in accordance with the SWPPP;and c. Which disturb one(1)or more acres of land designated on the current
uncontaminated discharges from construction site de-watering operations.All United States Department of Agriculture("USDA")Soil Survey as Soil
non-stormwater discharges must be identified in the SWPPP. Under all Slope Phase"D",(provided the map unit name is inclusive of slopes greater
circumstances,the owneror opera[or must still comply with water quality than 25%),or Soil Slope Phase"E"or"F"(regardless of the map unit
s[andards in Part I.D of this permit. name),or a combination of the three designations.
4. The owneroropera[or must maintain permit eligibility to discharge under this 7. Cons[ruction activi[ies for linear transportation projects and linear utility
permit. Any discharges that are not compliant with the eligibility conditions of projects:
this permit are not authorized by the permit and the owneroroperator must
either apply for a separate permitto cover those ineligible discharges ortake a. Where the discharges from the construction ac[ivities are tributary to waters
steps necessary to make the discharge eligible for coverage. of the state classified as AA or AA-s;and
F. Activities Which Are Ineligible for Coverage Under This General Permit
b. Which are undertaken on land with no existing impervious cover,and
All of the following are not authorized by this permit:
1. Discharges after cons[ruc[ion ac[ivities have been completed and the site has c.Which disturb two(2)or more acres of land designated on the current USDA
undergone final s[abiliza[ion; Soil Survey as Soil Slope Phase"D"(provided the map unit name is inclusive of
slopes greater than 25%),or Soil Slope Phase"E"or"F"(regardless of the map
2. Discharges that are mixed with sources of non-stormwater other than those unit name),or a combination of the three designations.
expressly authorized under subsection E.3.of this Part and identified in the
SWPPP required by this permit;
3. Discharges that are required to obtain an individual SPDES permit or another
SPDES general permit pursuant to Part VII.K.of this permit;
4. Cons[ruc[ion activi[ies or discharges from construc[ion ac[ivi[ies that may
adversely affect an endangered or threa[ened species unless the owneror
9 10
(Parc i F.a) (Parc i.F a.q
8. Cons[ruction ac[ivi[ies that have the potential to affect an his[oric property, (i) No Affect
unless there is documentation that such impacts have been resolved.The (ii) No Adverse Affect
following documentation necessary to demonstrate eligibility with this (iii) Executed Memorandum of Agreement,or
requirement shall be maintained on site in accordance with Part II.D.2 of this
permit and made available to the Department in accordance with Part VII.F of d. Documentation that:
this permit:
(i) SHPA Section 14.09 has been completed by NYS DEC or another state
a. Documentation that the cons[ruc[ion ac[ivity is not within an archeologically agency.
sensitive area indicated on the sensitivity map,and that the cons[ruc[ion
ac[ivity is not located on or immediately adjacent to a property listed or 9. Discharges from conshuc[ion ac[ivi[ies that are subject to an existing SPDES
determined to be eligible for listing on the National or State Registers of individual or general permit where a SPDES permitfor construc[ion activity has
Historic Places,and that there is no new permanent building on the been terminated or denied;or where the owneroroperatorhas failed to renew
cons[ruction site within the following distances from a building,structure,or an expired individual permit.
object that is more than 50 years old,or if there is such a new permanent
building on the cons[ruc[ion si[e within those parameters that NYS Office of
Parks,Recreation and Historic Preservation(OPRHP),a Historic Part II.PERMIT COVERAGE
Preservation Commission of a Certified Local Government,or a qualified A. How to Obtain Coverage
preservation professional has determined that the building,structure,or
object more than 50 years old is not historically/archeologically significant. 1. An owneror opera[or of a cons[ruc[ion ac[iviry that is not subject to the
requirements of a regulated,traditional land use control MS4 must first prepare
• 1-5 acres of disturbance-20 feet a SWPPP in accordance with all applicable requirements of this permit and
• 5-20 acres of disturbance-50 feet then submit a completed Notice of Intent(NOI)to the Department to be
• 20+acres of disturbance-100 feet,or authorized to discharge under this permit.
b. DEC consultation form sent to OPRHP,and copied to the NYS DEC Agency 2. An owneror operator of a construction ac[iviry that is subject to the
Historic Preservation Officer(APO),and requirements of a regulated,[radi[ional land use control MS4 must first prepare
(i) the State Environmental Quality Review(SEQR)Environmental a SWPPP in accordance with all applicable requirements of this permit and
Assessment Form(EAF)with a negative declaration or the Findings then have the SWPPP reviewed and accepted by the regula[ed,[raditional land
Statement,with documentation of OPRHP's agreement with the use con[rol MS4 prior to submitting the NOI to the Department.The owner or
resolution;or opera[orshall have the"MS4 SWPPP Acceptance"form signed in accordance
(ii) documentation from OPRHP thatthe cons[ruction activirywill result in with Part VII.H.,and then submitthatform along with a completed NOI to the
No Impact;or Department.
(iii) documentation from OPRHP providing a determination of No Adverse
Impact;or 3. The requirementfor an owneroroperatorto have its SWPPP reviewed and
(iv) a Letter of Resolution signed by the owner/operator,OPRHP and the accepted by the regula[ed,[radi[ional land use con[rol MS4 prior to submitting
DEC APO which allows for this cons[ruc[ion ac[ivity to be eligible for the NOI to the Department does not apply to an owner or operatorthat is
coverage under the general permit in terms of the State Historic obtaining permit coverage in accordance with the requirements in Part II.F.
Preservation Act(SHPA);or (Change of Owner or Opera[or)or where the owner or operatorof the
construction ac[ivity is the regula[ed,[raditional land use conhol MS4. This
c. Documentation of satisfactory compliance with Section 106 of the National exemption does not apply to cons[ruc[ion activi[ies subject to the New York City
Historic Preservation Actfor a coterminous project area: Administrative Code.
11 12
(Parcu e) (Parcu cz.e)
B. Notice of Intent(NOI)Submittal must submit a preliminary SWPPP to the appropriate DEC Permit
Administrator atthe Regional Office listed in Appendix F atthe time all other
1. Prior to December 21,2020,an owner or operator shall use either the necessary UPA permit applications are submitted.The preliminary SWPPP
electronic(eN01)or paperversion of the NOI thatthe Department prepared. must include sufficient information to demonstrate thatthe cons[ruc[ion
Both versions of the NOI are located on the DepartmenYs website ac[ivityqualifies for authorization under this permit,
(http://www.dec.ny.gov/).The paper version of the NOI shall be signed in
accordance with Part VII.H.of this permit and submitted to the following c. the final SWPPP has been prepared,and
address:
d. a complete NOI has been submitted to the Department in accordance with
NOTICE OF INTENT the requirements of this permit.
NYS DEC,Bureau of Water Permits
625 Broadway,4�^Floor 3. An owneroroperatorthat has satisfied the requirements of Part II.C.2 above
Albany,New York 12233-3505 will be authorized to discharge stormwater from their cons[ruc[ion activiry in
accordance with the following schedule:
2. Beginning December 21, 2020 and in accordance with EPA's 2015 NPDES
Electronic Reporting Rule(40 CFR Part 127),the owneroropera[ormust submit a. For cons[ruc[ion activities that are not subject to the requirements of a
the NOI electronically using the Departmen['s online NOI.
regulated,traditional land use control MS4:
3. The owner or opera[or shall have the SWPPP preparer sign the "SWPPP
Preparer Certification"statement on the NOI prior to submitting the form to the (i) Five(5)business days from the date the Department receives a
Department. complete electronic version of the NOI(eN01)for cons[ruc[ion ac[ivi[ies
with a SWPPP that has been prepared in conformance with the design
4. As of the date the NOI is submitted to the Department,the owner or operator criteria in the technical standard referenced in Part III.B.1 and the
shall make the NOI and SWPPP available for review and copying in accordance performance cri[eria in the technical standard referenced in Parts III.B.,
with the requirements in Part VII.F.of this permit. 2 or 3,for construction ac[ivi[ies that require post-construction
stormwater management practices pursuant to Part III.C.;or
C. PermitAuthorization
(ii) Sixty(60)business days from the date the Department receives a
1. An owneror opera[or shall not commence cons[ruc[ion ac[ivity until their complete NOI(electronic or paper version)for cons[ruc[ion ac[ivi[ies
authorization to discharge under this permit goes into effect. with a SWPPP that has not been prepared in conformance with the
design criteria in technical standard referenced in Part III.B.1.or,for
2. Authorization to discharge under this permit will be effective when the owneror construction ac[ivi[ies that require post-construction stormwater
operator has satisfied all of the following criteria: management practices pursuant to Part III.C.,the performance criteria
in the technical standard referenced in Parts III.B.,2 or 3,or;
a. project review pursuant to the State Environmental Quality Review Act
("SEQRA")have been satisfied,when SEQRA is applicable.See the (iii) Ten(10)business days from the date the Department receives a
DepartmenYs website(http://www.dec.nv.aov/)for more information, complete paper version of the NOI for cons[ruc[ion ac[ivi[ies with a
SWPPP that has been prepared in conformance with the design
b. where required,all necessary Department permits subjectto the Uniform criteria in the technical standard referenced in Part III.B.1 and the
Procedures Ac[("UPA")(see 6 NYCRR Part 621),or the equivalent from pertormance cri[eria in the technical standard referenced in Parts III.B.,
another New York State agency,have been obtained,unless otherwise 2 or 3,for cons[ruc[ion ac[ivi[ies that require post-construction
notified by the Department pursuant to 6 NYCRR 621.3(a)(4).Owners or stormwater management practices pursuant to Part I I I.C.
opera[ors of cons[ruc[ion ac[ivi[ies that are required to obtain UPA permits
13 14
(Part II C 3.b) (Part II.D 3)
b. For cons[ruc[ion ac[ivities that are subject to the requirements of a use con[rol MS4,the regula[ed,haditional land use conhol MS4(provided the
regulated,[raditional land use con[rol MS4: regulated,[raditional land use con[rol MS4 is not the owner or operator of the
construc[ion ac[ivity).At a minimum,the owneror opera[or must comply with
(i) Five(5)business days from the date the Department receives both a the following requirements in order to be authorized to disturb greater than five
complete electronic version of the NOI(eN01)and signed"MS4 (5)acres of soil at any one time:
SWPPP Acceptance"form,or
a. The owneroroperatorshall have a qualified inspectorconduct at least two
(ii) Ten(10)business days from the date the Department receives both a (2)site inspections in accordance with Part IV.C.of this permit every seven
complete paper version of the NOI and signed"MS4 SWPPP (7)calendar days,for as long as greater than five(5)acres of soil remain
Acceptance"form. disturbed.The two(2)inspections shall be separated by a minimum of two
(2)full calendar days.
4. Coverage under this permit authorizes stormwater discharges from only those
areas of disturbance that are identified in the NOI.If an owneroroperator b. In areas where soil disturbance activity has temporarily or permanently
wishes to have stormwater discharges from future or additional areas of ceased,the application of soil stabilization measures must be initiated by
disturbance authorized,they must submit a new NOI that addresses that phase the end of the next business day and completed within seven(7)days from
of the development,unless otherwise notified by the Department.The owneror the date the current soil disturbance activity ceased.The soil stabilization
operator shall not commence cons[ruc[ion ac[ivity on the future or additional measures selected shall be in conformance with the technical standard,
areas until their authorization to discharge under this permit goes into effect in New York State Standards and Specifications for Erosion and Sediment
accordance with Part II.C.of this permit. Control,dated November 2016.
D. General Requirements For Owners or Operators With Permit Coverage c. The owneroroperatorshall prepare a phasing plan that defines maximum
1. The owneroropera[orshall ensure thatthe provisions of the SWPPP are disturbed area per phase and shows required cuts and fills.
implemented from the commencemen[ofcons[ruc[ion ac[ivity until all areas of d. The owneroroperatorshall install any additional site-specific practices
disturbance have achieved final stabilization and the Notice of Termination needed to protectwater quality.
("NOT")has been submitted to the Department in accordance with Part V.of
this permit.This includes any changes made to the SWPPP pursuantto Part e. The owneroroperatorshall include the requirements above in their
III.A.4.of this permit. SWPPP
2. The owneror opera[or shall maintain a copy of the General Permit(GP-0-20- 4. In accordance with statute,regulations,and the terms and conditions of this
001),NOI,NOI Acknowledgmen[Le[ter,SWPPP,MS4 SWPPP Acceptance permit,the Department may suspend or revoke an owner's oroperator's
form,inspection reports,responsible contractor's or subcontractor's certification coverage under this permit at any time if the Department determines thatthe
statement(see Part III.A.6.),and all documentation necessary to demonstrate SWPPP does not meetthe permit requirements or consistentwith Part VII.K..
eligibility with this permit at the cons[ruc[ion site until all disturbed areas have
achieved final s[abiliza[ion and the NOT has been submitted to the Department. 5. Upon a finding of significant non-compliance with the practices described in the
The documents must be maintained in a secure location,such as a job trailer, SWPPP or violation of this permit,the Department may order an immediate
on-site construction office,or mailbox with lock.The secure location must be stop to all activity at the site until the non-compliance is remedied.The stop
accessible during normal business hours to an individual performing a work order shall be in writing,describe the non-compliance in detail,and be
compliance inspection. sent to the owner or opera[or.
3. The owneror opera[or of a construction activity shall not disturb greater than 6. For construc[ion ac[ivi[ies that are subject to the requirements of a regulated,
five(5)acres of soil at any one time without prior written authorization from the [radi[ional land use con[rol MS4,the owneroropera[or shall notify the
Departmentor,in areas underthejurisdiction of a regulated,[radi[ionalland
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(Part I I.D.6) (Part II F 3)
regula[ed,tradi[ional land use control MS4 in writing of any planned opera[orwas not subject to a sixty(60)business day authorization period that
amendments or modifications to the post-construction stormwater management has not expired as of the date the Department receives the NOI from the new
practice component of the SWPPP required by Part III.A.4.and 5.of this owner or opera[or.
permit.Unless otherwise notified by the regulated,[raditional land use con[rol
MS4,the owneroroperatorshall have the SWPPP amendments or
modifications reviewed and accepted by the regula[ed,[radi[ional land use Part III.STORMWATER POLLUTION PREVENTION PLAN(SWPPP)
con[rol MS4 prior to commencing construction of the post-construction
stormwater management practice. A. General SWPPP Requirements
E. Permit Coverage for Discharges Authorized Under GP-0-15-002 1. A SWPPP shall be prepared and implemented by the owneroroperatorof
each cons[ruc[ion ac[ivity covered by this permit.The SWPPP must document
1. Upon renewal of SPDES General Permitfor Stormwater Discharges from the selection,design,installation,implementation and maintenance of the
Cons[ruc[ion Ac[ivity(Permit No.GP-0-15-002),an owneroroperatorof a control measures and practices that will be used to meet the effluent limitations
construction ac[ivitywith coverage under GP-0-15-002,as of the effective date in Part I.B.of this permit and where applicable,the post-construction
of GP-0-20-001,shall be authorized to discharge in accordance with GP-0-20- stormwater management practice requirements in Part I.C.of this permit.The
001,unless otherwise notified by the Department. SWPPP shall be prepared priorto the submittal of the NOI.The NOI shall be
submitted to the Department prior to the commencemen[of cons[ruc[ion
An owneroropera[or may continue to implement the technical/design activity.A copy of the completed,final NOI shall be included in the SWPPP.
components of the post-construction stormwater management controls
provided that such design was done in conformance with the technical 2. The SWPPP shall describe the erosion and sediment control practices and
standards in place atthe time of initial project authorization.However,they where required,post-construction stormwater management practices thatwill
must comply with the other,non-design provisions of GP-0-20-001.
be used and/or constructed to reduce the pollutants in stormwater discharges
F. Change of Owner or Operator and to assure compliance with the terms and conditions of this permit.In
addition,the SWPPP shall identify potential sources of pollution which may
1. When property ownership changes or when there is a change in operational reasonably be expected to affect the quality of stormwater discharges.
control overthe construction plans and specifications,the original owneror
operator must notify the new owneror opera[or,in writinq,of the requirement to 3. All SWPPPs that require the post-construction stormwater management
obtain permit coverage by submitting a NOI with the Department.For practice component shall be prepared by a qualified professional that is
cons[ruc[ion ac[ivities subject to the requirements of a regulated,tradi[ional knowledgeable in the principles and practices of stormwater management and
land use con[rol MS4,the original owneror operator must also notify the MS4, treatment.
in writing,of the change in ownership at least 30 calendar days prior to the
change in ownership. 4. The owneror operator must keep the SWPPP current so that it at all times
accurately documents the erosion and sediment controls practices that are
2. Once the new owneroropera[orobtains permit coverage,the original owneror being used orwill be used during construction,and all post-construction
operator shall then submit a completed NOT with the name and permit stormwater management practices that will be constructed on the site. At a
identification number of the new owneroropera[orto the Department atthe minimum,the owneroropera[orshall amend the SWPPP,including
address in Part II.B.1.of this permit.If the original owneroropera[or maintains construction drawings:
ownership of a portion of the cons[ruc[ion ac[ivity and will disturb soil,they must
maintain their coverage under the permit. a. whenever the current provisions prove to be ineffective in minimizing
pollu[an[s in stormwater discharges from the site;
3. Permit coverage for the new owneror operatorwill be effective as of the date
the Department receives a complete NOI,provided the original owneror
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(Parc m.n a.e) (Parc u i.n.$)
b. whenever there is a change in design,construction,or operation at the the terms and conditions of the most current version of the New York State
cons[ruc[ion site that has or could have an effect on the discharge of Pollutant Discharge Elimination System("SPDES")general permit for
pollu[an[s; stormwater discharges from cons[ruction activities and that it is unlawful for
any person to cause or contribute to a violation of wa[erqualitystandards.
c. to address issues or deficiencies identified during an inspection by the Furthermore,I am aware thatthere are significant penalties for submitting
qualified inspec[or,the Department or other regulatory authority;and false information,that I do not believe to be true,including the possibility of
fine and imprisonment for knowing violations"
d. to documentthe final construction conditions.
In addition to providing the certification statement above,the certification page
5. The Department may notify the owneror operator at any time that the SWPPP must also identify the specific elements of the SWPPP that each contractor and
does not meet one or more of the minimum requirements of this permit.The subcontractor will be responsible for and include the name and title of the
notification shall be in writing and identify the provisions of the SWPPP that person providing the signature;the name and title of the[rained contrac[or
require modification.Within fourteen(14)calendar days of such notification,or responsible for SWPPP implementation;the name,address and telephone
as otherwise indicated by the Department,the owner or operator shall make number of the contracting firm;the address(or other identifying description)of
the required changes to the SWPPP and submitwritten notification to the the site;and the date the certification statement is signed.The owneror
Department that the changes have been made.If the owneror operator does opera[or shall attach the certification statement(s)to the copy of the SWPPP
not respond to the DepartmenYs comments in the specified time frame,the that is maintained at the construction si[e.If new or additional contractors are
Department may suspend the owner's or opera[or's coverage under this permit hired to implement measures identified in the SWPPP after construction has
or require the owneroroperatorto obtain coverage under an individual SPDES commenced,they must also sign the certification statement and provide the
permit in accordance with Part II.D.4.of this permit. information listed above.
6. Prior to the commencemen[of cons[ruc[ion ac[ivity,the owneror operator must 7. For projects where the Department requests a copy of the SWPPP or
identify the contractor(s)and subcontractor(s)that will be responsible for inspection reports,the owner or opera[orshall submit the documents in both
installing,constructing,repairing,replacing,inspecting and maintaining the electronic(PDF only)and paper formatwithin five(5)business days,unless
erosion and sediment control practices included in the SWPPP;and the otherwise notified by the Department.
contractor(s)and subcontractor(s)that will be responsible for constructing the
post-construction stormwater management practices included in the SWPPP.
The owneroropera[orshall have each of the contractors and subcontractors B. Required SWPPP Contents
identify at least one person from their company that will be responsible for 1. Erosion and sediment control component-All SWPPPs prepared pursuantto
implementation of the SWPPP.This person shall be known as the[rained this permit shall include erosion and sediment control practices designed in
contractor.The owneror opera[orshall ensure that at least one trained conformance with the technical standard,New York State Standards and
contractor is on site on a daily basis when soil disturbance activities are being Specifications for Erosion and Sediment Control,dated November 2016.Where
pertormed. erosion and sediment control practices are not designed in conformance with
The owneroropera[orshall have each of the contractors and subcontractors the design criteria included in the technical standard,the owneroropera[or
must demonstrate equivalence to the technical standard.At a minimum,the
identified above sign a copy of the following certification statement below erosion and sediment control component of the SWPPP shall include the
before they commence any cons[ruc[ion activity: following:
"I hereby certify under penalty of law that I understand and agree to comply a. Background information aboutthe scope of the project,including the
with the terms and conditions of the SWPPP and agree to implement any location,type and size of project
corrective actions identified by the qualified inspector during a site
inspection. I also understand that the owneroroperator must comply with
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(Parc w e�.e) (Parc w e.tp
b. A site map/construction drawing(s)for the project,including a general schedule shall be in accordance with the requirements in the technical
location map.At a minimum,the site map shall show the total site area;all standard,New York State Standards and Specifications for Erosion and
improvements;areas of disturbance;areas that will not be disturbed; Sediment Control,dated November 2016;
existing vegetation;on-site and adjacent off-site surtace water(s);
floodplain/floodway boundaries;wetlands and drainage patterns that could j. A description of the pollution prevention measures thatwill be used to
be affected by the construction ac[ivity;existing and final contours; control litter,construction chemicals and construction debris from becoming
locations of different soil types with boundaries;material,waste,borrow or a pollutant source in the stormwater discharges;
equipment storage areas located on adjacent properties;and location(s)of
the stormwater discharge(s); k. A description and location of any stormwater discharges associated with
industrial activity other than construction at the site,including,but not limited
c. A description of the soil(s)present at the site,including an identification of to,stormwater discharges from asphalt plants and concrete plants located
the Hydrologic Soil Group(HSG); on the cons[ruc[ion si[e;and
d. A construction phasing plan and sequence of operations describing the I. Identification of any elements of the design that are not in conformance with
intended order of conshuc[ion ac[ivi[ies,including clearing and grubbing, the design criteria in the technical standard,New York State Standards and
excavation and grading,utility and infrastructure installation and any other Specifications for Erosion and Sediment Control,dated November 2016.
activity at the site that results in soil disturbance; Include the reason for the deviation or alternative design and provide
information which demonstrates thatthe deviation or alternative design is
e. A description of the minimum erosion and sediment control practices to be equivalen[to the technical standard.
installed or implemented for each cons[ruc[ion ac[ivity that will result in soil
disturbance.Include a schedule that identifies the timing of initial placement 2. Post-construction stormwater management practice component—The owneror
or implementation of each erosion and sediment control practice and the opera[or of any construction project identified in Table 2 of Appendix B as
minimum time frames that each practice should remain in place or be needing post-construction stormwater management practices shall prepare a
implemented; SWPPP that includes practices designed in conformance with the applicable
sizing criteria in Part I.C.2.a.,c.or d.of this permit and the performance cri[eria
f. A temporary and permanent soil stabilization plan that meets the in the technical standard,New York State Stormwater Management Design
requirements of this general permit and the technical standard,New York Manual dated January 2015
State Standards and Specifications for Erosion and Sediment Control,dated
November 2016,for each stage of the project,including initial land clearing Where post-construction stormwater management practices are not designed
and grubbing to project completion and achievement of final s[abiliza[ion; in conformance with the performance cri[eria in the technical standard,the
owner or opera[or must include in the SWPPP the reason(s)for the deviation or
g. A site map/construction drawing(s)showing the specific location(s),size(s), alternative design and provide information which demonstrates that the
and length(s)of each erosion and sediment control practice; deviation or alternative design is equivalen[to the technical standard.
h. The dimensions,material specifications,installation details,and operation The post-construction stormwater management practice component of the
and maintenance requirements for all erosion and sediment control SWPPP shall include the following:
practices.Include the location and sizing of any temporary sediment basins
and structural practices that will be used to divert flows from exposed soils; a. Identification of all post-construction stormwater management practices to
be constructed as part of the project.Include the dimensions,material
i. A maintenance inspection schedule forthe contractor(s)identified in Part specifications and installation details for each post-construction stormwater
III.A.6.of this permit,to ensure continuous and effective operation of the management practice;
erosion and sediment control practices.The maintenance inspection
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(Part I II B 2.b) (Part II I.B 3)
b. A site map/construction drawing(s)showing the specific location and size of 3. Enhanced Phosphorus Removal Standards-All construction projects identified
each post-construction stormwater management practice; in Table 2 of Appendix B that are located in the watersheds identified in
Appendix C shall prepare a SWPPP that includes post-construction stormwater
c. A Stormwater Modeling and Analysis Report that includes: management practices designed in conformance with the applicable sizing
(i) Map(s)showing pre-development conditions,including cri[eria in Part I.C.2.b.,c.or d.of this permit and the performance criteria,
watershed/subcatchments boundaries,flow paths/routing,and design Enhanced Phosphorus Removal Standards included in the Design Manual.At a
points; minimum,the post-construction stormwater management practice component
of the SWPPP shall include items 2.a-2.f.above.
(ii) Map(s)showing post-development conditions,including C. Required SWPPP Components by Project Type
watershed/subcatchments boundaries,flow paths/routing,design
points and post-construction stormwater management practices; Unless otherwise notified by the Department, owners or opera[ors of cons[ruc[ion
ui Results of stormwater modelin i e.h drolo and h draulic anal sis ac[ivities identified in Table 1 of Appendix B are required to prepare a SWPPP that only
� � g�� Y gY Y Y � includes erosion and sediment control practices designed in conformance with Part
for the required storm events.I nclude supporting calculations(model I II.B.1 of this perm it.Owners oropera[ors of the cons[ruc[ion activities identified in Table
runs),methodology,and a summary table that compares pre and post- 2 of Appendix B shall prepare a SWPPP thatalso includes post-construction stormwater
development runoff rates and volumes for the different storm events; management practices designed in conformance with Part III.B2 or 3 of this permit.
(iv) Summary table,with supporting calculations,which demonstrates that
each post-construction stormwater management practice has been Part IV.INSPECTION AND MAINTENANCE REQUIREMENTS
designed in conformance with the sizing cri[eria included in the Design
Manual; A. General Construction Site Inspection and Maintenance Requirements
(v) Identification of any sizing criteria that is not required based on the 1. The owneror opera[or must ensure that all erosion and sediment control
requirements included in Part I.C.of this permit;and
practices(including pollution prevention measures)and all post-construction
(vi) Identification of any elements of the design that are not in conformance stormwater management practices identified in the SWPPP are inspected and
with the performance cri[eria in the Design Manual. Include the maintained in accordance with Part IV.B.and C.of this permit.
reason(s)for the deviation or alternative design and provide 2. The terms of this permit shall not be construed to prohibit the State of New
information which demonstrates that the deviation or alternative design York from exercising any authority pursuant to the ECL,common law or federal
is equivalen[to the Design Manual; law,or prohibit New York State from taking any measures,whether civil or
d. Soil testing results and locations(test pits,borings); criminal,to prevent violations of the laws of the State of New York or protect
the public health and safety and/or the environment.
e. Infiltration test results,when required;and
B. Contractor Maintenance Inspection Requirements
f. An operations and maintenance plan that includes inspection and
maintenance schedules and actions to ensure continuous and effective 1. The owneroroperatorof each construction ac[ivity identified in Tables 1 and 2
operation of each post-construction stormwater management practice.The of Appendix B shall have a[rained contracfor inspect the erosion and sediment
plan shall identify the entity thatwill be responsible for the long term control practices and pollution prevention measures being implemented within
operation and maintenance of each practice. the active work area daily to ensure that they are being maintained in effective
operating condition at all times.If deficiencies are identified,the contractor shall
23 24
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begin implementing corrective actions within one business day and shall in one of the watersheds listed in Appendix C and not directly discharging to
complete the corrective actions in a reasonable time frame. one of the 303(d)segments listed in Appendix E;
2. For construction sites where soil disturbance activities have been temporarily b. the construction of a single family home that involves a soil disturbance of
suspended(e.g.winter shutdown)and[emporary s[abiliza[ion measures have one(1)or more acres of land but less than five(5)acres and is not located
been applied to all disturbed areas,the[rained contrac[orcan stop conducting in one of the watersheds listed in Appendix C and not directly discharging to
the maintenance inspections.The hained con[ractorshall begin conducting the one of the 303(d)segments listed in Appendix E;
maintenance inspections in accordance with Part IV.B.1.of this permit as soon
as soil disturbance activities resume. c. construction on agricultural property that involves a soil disturbance of one
(1)or more acres of land but less than five(5)acres;and
3. For construction sites where soil disturbance activities have been shut down
with partial project completion,the[rained contrac[orcan stop conducting the d. cons[ruction activities located in the watersheds identified in Appendix D
maintenance inspections if all areas disturbed as of the project shutdown date that involve soil disturbances between five thousand(5,000)square feet
have achieved final stabilization and all post-construction stormwater and one(1)acre of land.
management practices required for the completed portion of the project have
been constructed in conformance with the SWPPP and are operational. 2. Unless otherwise notified by the Department,the qualified inspectorshall
C. Qualified Inspector Inspection Requirements conduct site inspections in accordance with the following timetable:
The owner or opera[or shall have a qualified inspec[or conduct site inspections in a. For construction sites where soil disturbance activities are on-going,the
conformance with the following requirements: qualified inspec[orshall conduct a site inspection at least once every seven
(7)calendar days.
[Note:The[rained contrac[or identified in Part III.A.6.and IV.B.of this permit cannot
conduct the qualified inspec[orsite inspections unless they meet the qualified inspector b. For construction sites where soil disturbance activities are on-going and the
qualifications included in Appendix A.In orderto perform these inspections,the[rained owneroroperatorhas received authorization in accordance with Part II.D.3
con[ractorwould have to be a: to disturb greater than five(5)acres of soil at any one time,the qualifed
inspec[orshall conduct at leasttwo(2)site inspections every seven(7)
• licensed Professional Engineer, calendar days.The two(2)inspections shall be separated by a minimum of
• Certified Professional in Erosion and Sediment Control(CPESC), two(2)full calendar days.
• New York State Erosion and Sediment Control Certificate Program holder
• Registered Landscape Architect,or c. For construction sites where soil disturbance activities have been
• someone working under the direct supervision of,and atthe same company as, temporarily suspended(e.g.winter shutdown)and[emporary stabiliza[ion
the licensed Professional Engineer or Registered Landscape Architect,provided measures have been applied to all disturbed areas,the qualified inspec[or
they have received four(4)hours of Department endorsed training in proper shall conduct a site inspection at least once every thirty(30)calendar days.
erosion and sediment control principles from a Soil and Water Conservation The owneroropera[orshall notify the DOW Water(SPDES)Program
District,or other Department endorsed entity]. contact at the Regional Office(see contact information in Appendix F)or,in
areas under the jurisdiction of a regula[ed,[radi[ional land use con[rol MS4,
1. A qualified inspec[or shall conduct site inspections for all cons[ruc[ion ac[ivi[ies the regulated,haditional land use conhol MS4(provided the regulated,
identified in Tables 1 and 2 of Appendix B,with the exception of: tradi[ional land use control MS4 is not the owneror operator of the
construction activity)in writing prior to reducing the frequency of
a. the construction of a single family residential subdivision with 25%or less inspections.
impervious coverat total site build-out that involves a soil disturbance of
one(1)or more acres of land but less than five(5)acres and is not located
25 26
(Parc iv cz.d) (Parc iv ca a)
d. For construction sites where soil disturbance activities have been shut down a. Date and time of inspection;
with partial project completion,the qualified inspectorcan stop conducting
inspections if all areas disturbed as of the project shutdown date have b. Name and title of person(s)pertorming inspection;
achieved final s[abiliza[ion and all post-construction stormwater
management practices required for the completed portion of the project c. A description of the weather and soil conditions(e.g.dry,wet,saturated)at
have been constructed in conformance with the SWPPP and are the time of the inspection;
operational.The owneroroperatorshall notify the DOW Water(SPDES)
Program contact at the Regional Office(see contact information in Appendix d. A description of the condition of the runoff at all points of discharge from the
F)or,in areas under the jurisdiction of a regula[ed,[raditional land use construction site.This shall include identification of any discharges of
con[rol MS4,the regula[ed,tradi[ionalland use conhol MS4(provided the sedimentfrom the cons[ruc[ion site.Include dischargesfrom conveyance
regula[ed,traditionalland use con[rol MS4 is notthe owneroropera[or of systems(i.e.pipes,culverts,ditches,etc.)and overland flow;
the cons[ruc[ion ac[ivity)in writing prior to the shutdown.If soil disturbance
activities are not resumed within 2 years from the date of shutdown,the e. A description of the condition of all natural surtace waterbodies located
owneroroperatorshall have the qualified inspec[orpertorm a final within,or immediately adjacentto,the property boundaries of the
inspection and certify that all disturbed areas have achieved final cons[ruc[ion site which receive runoff from disturbed areas.This shall
s[abiliza[ion,and all temporary,structural erosion and sediment control include identification of any discharges of sedimentto the surtace
measures have been removed;and that all post-construction stormwater waterbody;
management practices have been constructed in conformance with the
SWPPP by signing the"Final S[abiliza[ion"and"Post-Construction f. Identification of all erosion and sediment control practices and pollution
Stormwater Management Practice"certification statements on the NOT.The prevention measures that need repair or maintenance;
owneroropera[orshall then submitthe completed NOT form to the address
in Part II.B.1 of this permit. g. Identification of all erosion and sediment control practices and pollution
prevention measures thatwere not installed properly or are notfunctioning
e. For construction sites that directly discharge to one of the 303(d)segments as designed and need to be reinstalled or replaced;
listed in Appendix E or is located in one of the watersheds listed in
Appendix C,the qualified inspec[or shall conduct at least two(2)site h. Description and sketch of areas with active soil disturbance activity,areas
inspections every seven(7)calendar days.The two(2)inspections shall be that have been disturbed but are inactive at the time of the inspection,and
separated by a minimum of two(2)full calendar days. areas that have been stabilized(temporary and/or final)since the last
inspection;
3. At a minimum,the qualified inspectorshall inspect all erosion and sediment
control practices and pollution prevention measures to ensure integrity and i. Current phase of construction of all post-construction stormwater
effectiveness,all post-construction stormwater management practices under management practices and identification of all construction that is not in
construction to ensure that they are constructed in conformance with the conformance with the SWPPP and technical standards;
SWPPP,all areas of disturbance that have not achieved final s[abiliza[ion,all
points of discharge to natural surface waterbodies located within,or j. Corrective action(s)that must be taken to install,repair,replace or maintain
immediately adjacent to,the property boundaries of the construction si[e,and erosion and sediment control practices and pollution prevention measures;
all points of discharge from the cons[ruc[ion si[e. and to correct deficiencies identified with the construction of the post-
construction stormwater management practice(s);
4. The qualified inspec[or shall prepare an inspection report subsequent to each
and every inspection.At a minimum,the inspection report shall include and/or k. Identification and status of all corrective actions thatwere required by
address the following: previous inspection;and
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I. Digital photographs,with date stamp,that clearly show the condition of all b. Planned shutdown with partial project completion-All soil disturbance
practices that have been identified as needing corrective actions.The activities have ceased;and all areas disturbed as of the project shutdown
qualified inspec[orshall attach paper color copies of the digital photographs date have achieved final s[abiliza[ion;and all temporary,structural erosion
to the inspection report being maintained onsite within seven(7)calendar and sediment control measures have been removed;and all post-
days of the date of the inspection.The qualified inspec[or shall also take construction stormwater management practices required for the completed
digital photographs,with date stamp,that clearly show the condition of the portion of the project have been constructed in conformance with the
practice(s)afterthe corrective action has been completed.The qualified SWPPP and are operational;
inspec[orshall attach paper color copies of the digital photographs to the
inspection report that documents the completion of the corrective action c. A new owneroropera[or has obtained coverage under this permit in
work within seven(7)calendar days of that inspection. accordance with Part II.F.of this permit.
5. Within one business day of the completion of an inspection,the qualified d. The owneror operator obtains coverage under an alternative SPDES
inspectorshall notify the owneroroperator and appropriate contractor or general permit or an individual SPDES permit.
subcontractor identified in Part III.A.6.of this permit of any corrective actions
that need to be taken.The contractor or subcontractor shall begin implementing 3. For construction ac[ivi[ies meeting subdivision 2a.or 2b.of this Part,the owner
the corrective actions within one business day of this notification and shall or opera[or shall have the qualified inspec[or pertorm a final site inspection
complete the corrective actions in a reasonable time frame. priorto submitting the NOT.The qualified inspec[orshall,by signing the"Final
Stabiliza[ion"and"Post-Construction Stormwater Management Practice
6. All inspection reports shall be signed by the qualified inspec[or.Pursuantto certification statements on the NOT,certify that all the requirements in Part
Part II.D.2.of this permit,the inspection reports shall be maintained on site with V.A.2.a.or b.of this permit have been achieved.
the SWPPP.
4. For construc[ion ac[ivi[ies that are subject to the requirements of a regula[ed,
traditional land use control MS4 and meet subdivision 2a.or 2b.of this Part,the
Part V.TERMINATION OF PERMIT COVERAGE owneroropera[orshall have the regula[ed,tradi[ionalland use control MS4
sign the"MS4 Acceptance"statement on the NOT in accordance with the
A. Termination of Permit Coverage requirements in Part VII.H.of this permit.The regulated,[radi[ionalland use
control MS4 official,by signing this statement,has determined that it is
1. An owneroroperatorthat is eligible to terminate coverage under this permit acceptable for the owneroropera[orto submitthe NOT in accordance with the
must submit a completed NOT form to the address in Part II.B.1 of this permit. requirements of this Part.The regula[ed,[raditional land use con[rol MS4 can
The NOT form shall be one which is associated with this permit,signed in make this determination by pertorming a final site inspection themselves or by
accordance with Part VII.H of this permit. accepting the qualified inspec[or's final site inspection certification(s)required
in Part V.A.3.of this permit.
2. An owneror operator may terminate coverage when one or more the following
conditions have been met: 5. For cons[ruc[ion ac[ivi[ies that require post-construction stormwater
management practices and meet subdivision 2a.of this Part,the owneror
a. Total project completion-All cons[ruc[ion activity identified in the SWPPP opera[or must,prior to submitting the NOT,ensure one of the following:
has been completed;and all areas of disturbance have achieved final
s[abiliza[ion;and all temporary,structural erosion and sediment control a. the post-construction stormwater management practice(s)and any right-of-
measures have been removed;and all post-construction stormwater way(s)needed to maintain such practice(s)have been deeded to the
management practices have been constructed in conformance with the municipality in which the practice(s)is located,
SWPPP and are operational;
29 30
(Parc v ns.e) (Parc w i.n)
b. an executed maintenance agreement is in place with the municipality that Act(CWA)and the ECL and is grounds for an enforcement action against the owneror
will maintain the post-construction stormwater management practice(s), opera[or and/or the contractor/subcontractor; permit revocation, suspension or
modification;ordenial of a permit renewal application.Upon a finding of significant non-
c. for post-construction stormwater management practices that are privately compliance with this permit or the applicable SWPPP,the Department may order an
owned,the owneroropera[or has a mechanism in place that requires immediate stop to all cons[ruc[ion activity at the site until the non-compliance is
operation and maintenance of the practice(s)in accordance with the remedied.The stop work order shall be in writing,shall describe the non-compliance in
operation and maintenance plan,such as a deed covenant in the owneror detail,and shall be sentto the owneroropera[or.
opera[or's deed of record,
d. for post-construction stormwater management practices that are owned by If any human remains or archaeological remains are encountered during excavation,
a public or private institution(e.g.school,university,hospital),government the owner or operator must immediately cease,or cause to cease,all construction
agency or authority,or public utility;the owneroropera[or has policy and ac[ivity in the area of the remains and notify the appropriate Regional Water Engineer
procedures in place that ensures operation and maintenance of the (RWE). Cons[ruc[ion ac[ivity shall not resume until written permission to do so has been
practices in accordance with the operation and maintenance plan. received from the RWE.
Part VI.REPORTING AND RETENTION RECORDS B. Continuation of the Expired General Permit
A. Record Retention This permit expires five(5)years from the effective date.If a new general permit is not
issued priorto the expiration of this general permit,an owneroroperatorwith coverage
The owneroropera[orshall retain a copy of the NOI,NOI under this permit may continue to operate and discharge in accordance with the terms
Acknowledgment Letter,SWPPP,MS4 SWPPP Acceptance form and any inspection and conditions of this general permit, if it is eutended pursuant to the State
reports thatwere prepared in conjunction with this permitfor a period of at leastfive(5) Administrative Procedure Act and 6 NYCRR Part 621,until a new general permit is
issued.
years from the date that the Department receives a complete NOT submitted in
accordance with Part V.of this general permit. C. Enforcement
B. Addresses Failure of the owneroropera[or,its contractors,subcontractors,agents and/or assigns
to strictly adhere to any of the permit requirements contained herein shall constitute a
With the exception of the NOI,NOT,and MS4 SWPPP Acceptance form(which must violation of this permit.There are substantial criminal,civil,and administrative penalties
be submitted to the address referenced in Part II.B.1 of this permit), all written associated with violating the provisions of this permit. Fines of up to$37,500 per day
correspondence requested by the Department,including individual permit applications, for each violation and imprisonment for up to fifteen(15)years may be assessed
shall be sent to the address of the appropriate DOW Water(SPDES)Program contact depending upon the nature and degree of the offense.
at the Regional Office listed in Appendix F.
D. Need to Halt or Reduce Activity Not a Defense
Part VII.STANDARD PERMIT CONDITIONS
It shall not be a defense for an owneroropera[or in an enforcement action that it would
A. Dutyto Comply have been necessary to halt or reduce the cons[ruc[ion activity in order to maintain
compliance with the conditions of this permit.
The owner or operator must comply with all conditions of this permit. All contractors
and subcontractors associated with the project must comply with the terms of the
SWPPP.Any non-compliance with this permit constitutes a violation of the Clean Water
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(Parc vi i.e) (Parc wi H�a)
E. Dutyto Mitigate (i) a president,secretary,treasurer,orvice-presidentofthe corporation in
charge of a principal business function,or any other person who
The owneroropera[orand its contractors and subcontractors shall take all reasonable performs similar policy or decision-making functions for the
steps to minimize or prevent any discharge in violation of this permit which has a corporation;or
reasonable likelihood of adversely affecting human health orthe environment.
(ii) the manager of one or more manufacturing,production or operating
F. Dutyto Provide Information facilities,provided the manager is authorized to make management
decisions which govern the operation of the regulated facility including
The owner or opera[or shall furnish to the Department,within a reasonable specified having the explicit or implicit duty of making major capital investment
time period of a written request,all documentation necessary to demonstrate eligibility recommendations,and initiating and directing other comprehensive
and any information to determine compliance with this permit or to determine whether measures to assure long term environmental compliance with
cause exists for modifying or revoking this permit,or suspending or denying coverage environmental laws and regulations;the manager can ensure that the
under this permit,in accordance with the terms and conditions of this permit.The NOI, necessary systems are established or actions taken to gather complete
SWPPP and inspection reports required by this permit are public documents that the and accurate information for permit application requirements;and
owneroropera[ormust make available for review and copying by any person within five where authority to sign documents has been assigned or delegated to
(5)business days of the owner or opera[or receiving a written request by any such the manager in accordance with corporate procedures;
person to review these documents. Copying of documents will be done at the
requester's expense. b. For a partnership or sole proprietorship these forms shall be signed by a
general partner orthe proprietor,respectively;or
G.Other Information
c. For a municipality,State,Federal,or other public agency these forms shall
When the owner or opera[or becomes aware that they failed to submit any relevant be signed by either a principal executive officer or ranking elected official.
facts,or submitted incorrect information in the NOI or in any of the documents required For purposes of this section,a principal executive officer of a Federal
by this permit,or have made substantive revisions to the SWPPP(e.g.the scope of the agency includes:
project changes significantly,the type of post-construction stormwater management
practice(s) changes, there is a reduction in the sizing of the post-construction (i) the chief executive officer of the agency,or
stormwater management practice,or there is an increase in the disturbance area or
impervious area), which were not reflected in the original NOI submitted to the (ii) a senior executive officer having responsibility for the overall
Department,they shall promptly submit such facts or information to the Department operations of a principal geographic unit of the agency(e.g.,Regional
using the contact information in Part II.A.of this permit.Failure of the owneroropera[or Administrators of EPA).
to correct or supplement any relevant facts within five(5)business days of becoming
aware of the deficiency shall constitute a violation of this permit. 2. The SWPPP and other information requested by the Department shall be
signed by a person described in Part VII.H.1.of this permit or by a duly
H. Signatory Requirements authorized representative of that person.A person is a duly authorized
representative only if:
1. All NOIs and NOTs shall be signed as follows:
a. The authorization is made in writing by a person described in Part VII.H.1.
a. For a corporation these forms shall be signed by a responsible corporate of this permit;
officer.For the purpose of this section,a responsible corporate officer
means: b. The authorization specifies either an individual or a position having
responsibility for the overall operation of the regulated facility or activity,
such as the position of plant manager,operator of a well or a well field,
33 34
(Part VII H 2.b) (Part VII K 1)
superintendent,position of equivalen[responsibility,or an individual or include a brief statement of the reasons forthis decision,an application form,
position having overall responsibility for environmental matters forthe a statement setting a time frame forthe owner or operator to file the
company.(A duly authorized representative may thus be either a named application for an individual SPDES permit,and a deadline,not soonerthan
individual or any individual occupying a named position)and, 180 days from owner or operator receipt of the notification letter,whereby the
authorization to discharge under this general permit shall be terminated.
c. The written authorization shall include the name,title and signature of the Applications must be submitted to the appropriate Permit Administrator at the
authorized representative and be attached to the SWPPP. Regional Office.The Department may grant additional time upon
demonstration,to the satisfaction of the Department,that additional time to
3. All inspection reports shall be signed by the qualified inspectorthat pertorms apply for an alternative authorization is necessary or where the Department
the inspection. has not provided a permit determination in accordance with Part 621 of this
Title.
4. The MS4 SWPPP Acceptance form shall be signed by the principal executive
officer or ranking elected official from the regula[ed,hadi[ional land use con[rol 2.When an individual SPDES permit is issued to a discharger authorized to
MS4,or by a duly authorized representative of that person. discharge under a general SPDES permit for the same discharge(s),the
general permit authorization for outfalls authorized under the individual
It shall constitute a permitviolation if an incorrect and/or improper signatory SPDES permit is automatically terminated on the effective date of the
authorizes any required forms,SWPPP and/or inspection reports. individual permit unless termination is earlier in accordance with 6 NYCRR
Part 750.
I. Property Rights
L. Proper Operation and Maintenance
The issuance of this permit does not convey any property rights of any sort,nor any
exclusive privileges,nor does itauthorize any injuryto private property norany invasion The owneroroperatorshall at all times properly operate and maintain all facilities and
of personal rights,nor any infringement of Federal,State or local laws or regulations. systems of treatment and control(and related appurtenances)which are installed or
Owners or opera[ors must obtain any applicable conveyances,easements, licenses used bythe owneroropera[orto achieve compliance with the conditions of this permit
and/or access to real property prior to commencing cons[ruc[ion activity. and with the requirements of the SWPPP.
J. Severability M.Inspection and Entry
The provisions of this permit are severable,and if any provision of this permit,or the The owner or opera[or shall allow an authorized representative of the Department,
application of any provision of this permit to any circumstance, is held invalid,the EPA,applicable county health department,or,in the case of a construction si[e which
application of such provision to other circumstances,and the remainder of this permit discharges through an MS4,an authorized representative of the MS4 receiving the
shall not be affected thereby. discharge, upon the presentation of credentials and other documents as may be
required by law,to:
K. Requirement to Obtain Coverage Under an Alternative Permit 1.Enter upon the owner's or operator's premises where a regulated facility or
activity is located or conducted or where records must be kept under the
1. The Department may require any owner or operator authorized by this permitto conditions of this permit;
apply for and/or obtain either an individual SPDES permit or another SPDES
general permit.When the Department requires any discharger authorized by a 2.Have access to and copy at reasonable times,any records that must be kept
general permitto apply for an individual SPDES permit,it shall notify the under the conditions of this permit;and
discharger in writing that a permit application is required.This notice shall
35 36
(Part VI I.M 3) (Part VI I.R)
3.Inspect at reasonable times any facilities or equipment(including monitoring R. Other Permits
and control equipment),practices or operations regulated or required by this
permit. Nothing in this permit relieves the owneroroperatorfrom a requirement to obtain any
other permits required by law.
4.Sample or monitor at reasonable times,for purposes of assuring permit
compliance or as otherwise authorized by the Act or ECL,any substances or
parameters at any location.
N. PermitActions
This permit may,at any time,be modified,suspended,revoked,or renewed by the
Department in accordance with 6 NYCRR Part 621.The filing of a request by the
owneroropera[orfor a permit modification,revocation and reissuance,termination,a
notification of planned changes or anticipated noncompliance does not limit,diminish
and/or stay compliance with any terms of this permit.
O. Definitions
Definitions of key terms are included in Appendix A of this permit.
P. Re-Opener Clause
1.If there is evidence indicating potential or realized impacts on water quality
due to any stormwater discharge associated with construction activity covered
by this permit,the owner or operator of such discharge may be required to
obtain an individual permit or alternative general permit in accordance with
Part VII.K.of this permit or the permit may be modified to include different
limitations and/or requirements.
2.Any Department initiated permit modification,suspension or revocation will be
conducted in accordance with 6 NYCRR Part 621,6 NYCRR 750-1.18,and 6
NYCRR 750-120.
Q. Penalties for Falsification of Forms and Reports
In accordance with 6NYCRR Part 750-2.4 and 750-2.5,any person who knowingly
makes any false material statement,representation,or certification in any application,
record,report or other document filed or required to be maintained under this permit,
including reports of compliance or noncompliance shall,upon conviction,be punished
in accordance with ECL§71-1933 and or Articles 175 and 210 of the New York State
PenalLaw.
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nvva�d�;:n
APPENDIXA—Acronyms and Definitions Definitions
All definitions in this section are solelv for the purposes of this permit.
Acronyms Agricultural Building—a structure designed and constructed to house farm
APO—Agency Preservation Officer implements,hay,grain,poultry,livestock or other horticultural products;excluding any
BMP—Best Management Practice structure designed,constructed or used,in whole or in part,for human habitation,as a
CPESC—Certified Professional in Erosion and Sediment Control place of employment where agricultural products are processed,treated or packaged,
Cpv—Channel Protection Volume or as a place used by the public.
CWA—Clean Water Act(or the Federal Water Pollution Control Act,33 U.S.C.§1251 et Agricultural Property—means the land for construction of a barn,agricul[ural building,
seq) silo,stockyard,pen or other structural practices identified in Table II in the"Agricultural
DOW—Division of Water Management Practices Catalog for Nonpoint Source Pollution in New York State"
EAF—Environmental Assessment Form prepared by the Department in cooperation with agencies of New York Nonpoint Source
ECL-Environmental Conservation Law Coordinating Committee(dated June 2007).
EPA—U.S.Environmental Protection Agency
HSG—Hydrologic Soil Group Alter Hydrology from Pre to Post-Development Conditions-means the post-
MS4—Municipal Separate Storm Sewer System development peak flow rate(s)has increased by more than 5%of the pre-developed
NOI—Notice of Intent condition for the design storm of interest(e.g.10 yr and 100 yr).
NOT—Notice of Termination
NPDES—National Pollutant Discharge Elimination System Combined Sewer-means a sewer that is designed to collect and convey both
OPRHP—Office of Parks,Recreation and Historic Places "sewage"and"stormwater".
Qf—Extreme Flood
Qp—Overbank Flood Commence(Commencement of)Construction Activities-means the initial
RRv—Runoff Reduction Volume disturbance of soils associated with clearing,grading or excavation activities;or other
RWE—Regional Water Engineer construction related activities that disturb or expose soils such as demolition,stockpiling
SEQR—State Environmental Quality Review of fill material,and the initial installation of erosion and sediment control practices
SEQRA-State Environmental Quality Review Act required in the SWPPP.See definition for"Construction Activity(ies)"also.
SHPA—State Historic Preservation Act
SPDES—State Pollutant Discharge Elimination System Construction Activit ies means an clearin radin excavation,fillin demolition
SWPPP—Stormwater Pollution Prevention Plan Y� � Y g'g g' g'
TMDL—Total Maximum Daily Load or stockpiling activities that result in soil disturbance.Clearing activities can include,but
UPA—Uniform Procedures Act are not limited to,logging equipment operation,the cutting and skidding of trees,stump
USDA—United States Department of Agriculture removal and/or brush root removal.Construction activity does not include routine
WQv—Water Quality Volume maintenance that is pertormed to maintain the original line and grade,hydraulic
capacity,or original purpose of a facility.
Construction Site—means the land area where cons[ruction activity(ies)will occur.
See definition for"Commence(Commencemen[of)Construc[ion Ac[ivi[ies"and"Larger
Common Plan of Developmen[or Sale"also.
Dewatering—means the act of draining rainwater and/or groundwaterfrom building
foundations,vaults or excavations/trenches.
Direct Discharge(to a specific surtace waterbody)-means that runoff flows from a
cons[ruc[ion site by overland flow and the first point of discharge is the specific surtace
waterbody,or runoff flows from a cons[ruction site to a separate storm sewer system
39 40
Appendix A Appendix A
and the first point of discharge from the separate storm sewer system is the specific Larger Common Plan of Development or Sale-means a contiguous area where
surtace waterbody. multiple separate and distinct cons[ruc[ion activi[ies are occurring,or will occur,under
one plan.The term"plan"in"larger common plan of development or sale"is broadly
Discharge(s)-means any addition of any pollutant to waters of the State through an defined as any announcement or piece of documentation(including a sign,public notice
outlet or point source. or hearing,marketing plan,advertisement,drawing,permit application,State
Environmental Quality Review Act(SEQRA)environmental assessmentform or other
Embankment—means an earthen or rock slope that supports a road/highway. documents,zoning request,computer design,etc.)or physical demarcation(including
boundary signs,lot stakes,surveyor markings,etc.)indicating that construction
Endangered or Threatened Species—see 6 NYCRR Part 182 of the DepartmenYs ac[ivi[ies may occur on a specific plot.
rules and regulations for definition of terms and requirements.
For discrete construction projects that are located within a larger common plan of
Environmental Conservation Law(ECL)-means chapter 43-B of the Consolidated development or sale that are at least 1/4 mile apart,each project can be treated as a
Laws of the State of New York,entitled the Environmental Conservation Law. separate plan of development or sale provided any interconnecting road,pipeline or
utility project that is part of the same"common plan"is not concurrently being disturbed.
Equivalent(Equivalence)—means that the practice or measure meets all the
performance,longevity,maintenance,and safety objectives of the technical standard Minimize—means reduce and/or eliminate to the extent achievable using control
and will provide an equal or greater degree of water quality protection. measures(including best management practices)that are technologically available and
economically practicable and achievable in light of best industry practices.
Final Stabilization-means that all soil disturbance activities have ceased and a
uniform,perennial vegetative cover with a density of eighty(80)percent over the entire Municipal Separate Storm Sewer(MS4)-a conveyance or system of conveyances
pervious surtace has been established;or other equivalent stabilization measures,such (including roads with drainage systems,municipal streets,catch basins,curbs,gutters,
as permanent landscape mulches,rock rip-rap orwashed/crushed stone have been ditches,man-made channels,or storm drains):
applied on all disturbed areas that are not covered by permanent structures,concrete or
pavement. (i) Owned or operated by a State,city,town,borough,county,parish,district,
association,or other public body(created by or pursuant to State law)having
General SPDES permit-means a SPDES permit issued pursuant to 6 NYCRR Part jurisdiction over disposal of sewage,industrial wastes,stormwater,or other
750-121 and Section 70-0117 of the ECL authorizing a category of discharges. wastes,including special districts under State law such as a sewer district,
flood control district or drainage district,or similar entity,or an Indian tribe or
Groundwater(s)-means waters in the saturated zone.The saturated zone is a an authorized Indian tribal organization,or a designated and approved
subsurtace zone in which all the interstices are filled with water under pressure greater management agency under section 208 of the CWA that discharges to
than that of the atmosphere.Although the zone may contain gas-filled interstices or surtace waters of the State;
interstices filled with fluids other than water,it is still considered saturated. (ii) Designed or used for collecting or conveying stormwater;
(iii) Which is not a combined sewer;and
Historic Property—means any building,structure,site,object or district that is listed on (iv)Which is not part of a Publicly Owned Treatment Works(POTW)as defined
the State or National Registers of Historic Places or is determined to be eligible for at 40 CFR 1222.
listing on the State or National Registers of Historic Places.
National Pollutant Discharge Elimination System(NPDES)-means the national
Impervious Area(Cover)-means all impermeable surtaces that cannot effectively system for the issuance of wastewater and stormwater permits under the Federal Water
infiltrate rainfall.This includes paved,concrete and gravel surtaces(i.e.parking lots, Pollution Control Act(Clean Water Act).
driveways,roads,runways and sidewalks);building rooftops and miscellaneous
impermeable structures such as patios,pools,and sheds. Natural Buffer—means an undisturbed area with natural cover running along a surtace
water(e.g.wetland,stream,river,lake,etc.).
Infeasible—means nottechnologically possible,or not economically practicable and
achievable in light of best industry practices. New Development—means any land disturbance that does not meet the definition of
Redevelopment Activity included in this appendix.
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New York State Erosion and Sediment Control Certificate Program—a certificate Qualified Inspector-means a person that is knowledgeable in the principles and
program that establishes and maintains a process to identify and recognize individuals practices of erosion and sediment control,such as a licensed Professional Engineer,
who are capable of developing,designing,inspecting and maintaining erosion and Certified Professional in Erosion and Sediment Control(CPESC),Registered
sediment control plans on projects that disturb soils in New York State.The certificate Landscape Architect,New York State Erosion and Sediment Control Certificate
program is administered by the New York State Conservation District Employees Program holder or other Department endorsed individual(s).
Association.
It can also mean someone working under the direct supervision of,and at the same
NOI Acknowledgment Letter-means the letter thatthe Department sends to an company as,the licensed Professional Engineer or Registered Landscape Architect,
owner or operator to acknowledge the DepartmenYs receipt and acceptance of a provided that person has training in the principles and practices of erosion and sediment
complete Notice of Intent.This letter documents the owner's or operator's authorization control.Training in the principles and practices of erosion and sediment control means
to discharge in accordance with the general permit for stormwater discharges from that the individual working under the direct supervision of the licensed Professional
cons[ruc[ion activity. Engineer or Registered Landscape Architect has received four(4)hours of Department
endorsed training in proper erosion and sediment control principles from a Soil and
Nonpoint Source-means any source of water pollution or pollutants which is not a Water Conservation District,or other Department endorsed entity.After receiving the
discrete conveyance or poin[source permitted pursuant to Title 7 or 8 of Article 17 of initial training,the individual working under the direct supervision of the licensed
the Environmental Conservation Law(see ECL Section 17-1403). Professional Engineer or Registered Landscape Architect shall receive four(4)hours of
training every three(3)years.
Overbank—means flow events that exceed the capacity of the stream channel and spill
out into the adjacent floodplain. It can also mean a person that meets the Qualified Professional qualifications in
addition to the Qualified Inspec[or qualifications.
Owner or Operator-means the person,persons or legal entity which owns or leases
the property on which the cons[ruc[ion ac[iviry is occurring; an entity that has Note:Inspections of any post-construction stormwater management practices that
operational control over the construction plans and specifications,including the ability to include structural components,such as a dam for an impoundment,shall be pertormed
make modifications to the plans and specifications;and/or an entity that has day-to-day by a licensed Professional Engineer.
operational control of those activities at a project that are necessary to ensure
compliance with the permit conditions. Qualified Professional-means a person that is knowledgeable in the principles and
practices of stormwater management and treatment,such as a licensed Professional
Performance Criteria—means the design criteria listed under the"Required Elements" Engineer,Registered Landscape Architect or other Department endorsed individual(s).
sections in Chapters 5,6 and 10 of the technical standard,New York State Stormwater Individuals preparing SWPPPs that require the post-construction stormwater
Management Design Manual,dated January 2015.It does not include the Sizing management practice component must have an understanding of the principles of
Criteria(i.e.WQv,RRv,Cpv,Qp and Qf)in Part I.C.2.of the permit. hydrology,water quality management practice design,water quantity control design,
and,in many cases,the principles of hydraulics.All components of the SWPPP that
Point Source-means any discernible,confined and discrete conveyance,including but involve the practice of engineering,as defined by the NYS Education Law(see Article
not limited to any pipe,ditch,channel,tunnel,conduit,well,discrete fissure,container, 145),shall be prepared by,or under the direct supervision of,a professional engineer
rolling stock,concentrated animal feeding operation,vessel or other floating craft,or licensed to practice in the State of New York.
landfill leachate collection system from which pollutants are or may be discharged.
Redevelopment Activity(ies)—means the disturbance and reconstruction of existing
Pollutant-means dredged spoil,filter backwash,solid waste,incinerator residue, impervious area,including impervious areas thatwere removed from a project site within
sewage,garbage,sewage sludge,munitions,chemical wastes,biological materials, five(5)years of preliminary project plan submission tothe local government(i.e.site plan,
radioactive materials,heat,wrecked or discarded equipment,rock,sand and industrial, subdivision,etc.).
municipal,agricultural waste and ballast discharged into water;which may cause or
might reasonably be expected to cause pollution of the waters of the state in
contravention of the standards or guidance values adopted as provided in 6 NYCRR Regulated,Traditional Land Use Control MS4-means a city,town or village with
Parts 700 et seq. land use control authority that is authorized to discharge under New York State DEC's
43 44
Appendix A Appendix A
SPDES General Permit For Stormwater Discharges from Municipal Separate
Stormwater Sewer Systems(MS4s)or the City of New York's Individual SPDES Permit Steep Slope—means land area designated on the current United States Department of
for their Municipal Separate Storm Sewer Systems(NY-0287890). Agriculture("USDA")Soil Survey as Soil Slope Phase"D",(provided the map unit name
is inclusive of slopes greater than 25%),or Soil Slope Phase E or F,(regardless of the
Routine Maintenance Activity-means conshuc[ion activity that is pertormed to map unit name),or a combination of the three designations.
maintain the original line and grade,hydraulic capacity,or original purpose of a facility,
including,but not limited to: Streambank—as used in this permit,means the terrain alongside the bed of a creek or
stream.The bank consists of the sides of the channel,between which the flow is confined.
• Re-grading of gravel roads or parking lots,
• Cleaning and shaping of existing roadside ditches and culverts that maintains Stormwater Pollution Prevention Plan(SWPPP)—means a project specific report,
the approximate original line and grade,and hydraulic capacity of the ditch, including construction drawings, that among other things: describes the construction
• Cleaning and shaping of existing roadside ditches that does not maintain the activity(ies),identifies the potential sources of pollution at the cons[ruc[ion si[e;describes
approximate original grade,hydraulic capacity and purpose of the ditch if the and shows the stormwater controls that will be used to control the pollutants(i.e.erosion
changes to the line and grade,hydraulic capacity or purpose of the ditch are and sediment controls; for many projects, includes post-construction stormwater
installed to improve water quality and quantity controls(e.g.installing grass management controls);and identifies procedures the owneroropera[orwill implementto
lined ditch), comply with the terms and conditions of the permit. See Part III of the permit for a
• Placement of aggregate shoulder backing that stabilizes the transition between complete description of the information that must be included in the SWPPP.
the road shoulder and the ditch or embankmen[,
• Full depth milling and filling of existing asphalt pavements,replacement of Surtace Waters of the State-shall be construed to include lakes,bays,sounds,
concrete pavement slabs,and similar work that does not expose soil or disturb ponds,impounding reservoirs,springs,rivers,streams,creeks,estuaries,marshes,
the bottom six(6)inches of subbase material, inlets,canals,the Atlantic ocean within the territorial seas of the state of New York and
• Long-term use of equipment storage areas at or near highway maintenance all other bodies of surface water,natural or artificial,inland or coastal,fresh or salt,
facilities, public or private(except those private waters that do not combine or effect a junction
• Removal of sediment from the edge of the highway to restore a previously with natural surtace waters),which are wholly or partially within or bordering the state
existing sheet-flow drainage connection from the highway surtace to the or within its jurisdiction.Waters of the state are further defined in 6 NYCRR Parts 800 to
highway ditch or embankmen[, 941.
• Existing use of Canal Corp owned upland disposal sites for the canal,and
• Replacement of curbs,gutters,sidewalks and guide rail posts. Temporarily Ceased—means that an existing disturbed area will not be disturbed
again within 14 calendar days of the previous soil disturbance.
Site limitations—means site conditions that prevent the use of an infiltration technique
and or infiltration of the total WQv.Typical site limitations include:seasonal high Temporary Stabilization-means that exposed soil has been covered with material(s)
groundwater,shallow depth to bedrock,and soils with an infiltration rate less than 0.5 as set forth in the technical standard,New York Standards and Specifications for
inches/hour.The existence of site limitations shall be confirmed and documented using Erosion and Sediment Control,to prevent the exposed soil from eroding.The materials
actual field testing(i.e.test pits,soil borings,and infiltration test)or using information can include,but are not limited to,mulch,seed and mulch,and erosion control mats
from the most current United States Department of Agriculture(USDA)Soil Survey for (e.g.jute twisted yarn,excelsior wood fiber mats).
the County where the project is located.
Total Maximum Daily Loads(TMDLs)-A TMDL is the sum of the allowable loads of a
Sizing Criteria—means the criteria included in Part I.C2 of the permit that are used to single pollutant from all contributing point and nonpoin[sources.It is a calculation of the
size post-construction stormwater management control practices.The criteria include; maximum amount of a pollutant that a waterbody can receive on a daily basis and still
Water Quality Volume(WQv),Runoff Reduction Volume(RRv),Channel Protection meet waterquality standards,and an allocation of that amountto the pollutanYs
Volume(Cpv),Overbank Flood(Qp),and Extreme Flood(Qf). sources.A TMDL stipulates wasteload allocations(WLAs)for poin[source discharges,
load allocations(LAs)for nonpoin[sources,and a margin of safety(MOS).
State Pollutant Discharge Elimination System(SPDES)-means the system
established pursuant to Article 17 of the ECL and 6 NYCRR Part 750 for issuance of Trained Contractor-means an employee from the contracting(construction)company,
permits authorizing discharges to the waters of the state. identified in Part III.A.6.,that has received four(4)hours of Department endorsed
45 46
nvva�d�;:n
training in proper erosion and sediment control principles from a Soil and Water AppENDIX B—Required SWPPP Components by Project Type
Conservation District,or other Department endorsed entity.After receiving the initial
training,the hained con[rac[or shall receive four(4)hours of training every three(3)
years. Table 1
Construction Activities that Require the Preparation of a SWPPP That Only
It can also mean an employee from the contracting(construction)company,identified in Includes Erosion and Sediment Controls
Part I I I.A.6.,that meets the qualified inspector qualifications(e.g.licensed Professional
Engineer,Certified Professional in Erosion and Sediment Control(CPESC),Registered The following construction activities that involve soil disturbances of one(1)or more acres of
Landscape Architect,New York State Erosion and Sediment Control Certificate land,but less than five(5)acres:
Program holder,or someone working underthe direct supervision of,and at the same
COmpany as,the liCensed PfOfessi0nal Engineef Of Registefed LandsCape AfChiteCt, •Single family home not located in one of the watersheds listed in Appendix C or not directly
pfOVided they haVe feCeiVed fOUf(4)hOUfs Of DepaRment endOfsed tfaining in pfOpef discharging to one ofthe 303(d)segments listed in Appendix E
•Single family residential subdivisions with 25°k or less impervious cover at total site build-out and
efOsiOn and Sediment COntf01 pfinCiples ffOm a SOiI and Watef COnsefVatiOn DistfiCt,Of not located in one ofthe watersheds listed in Appendix C and not directly discharging to one of the
Othef DepaRment endOfsed entity). 303(d)segments listed in Appendix E
•Constmction of a barn or other agricutturel building,silq stock yard or pen.
The trained con[rac[or is responsible for the day to day implementation of the SWPPP.
The following construction activities that involve soil disturbances between five thousand(5000)
Uniform Procedures Act(UPA)Permit-means a permit required under 6 NYCRR square feet and one(1)acre of land:
Part 621 of the Environmental Conservation Law(ECL),Article 70.
All construction activities located in the watersheds identifed in Appendix D that involve soil
Watef QUality Standafd-means SUCh measUfes Of pUfity Of qUality fOf any Watefs in disturbances between fve thousand(5,000)square feet and one(1)acre of land.
relation to their reasonable and necessary use as promulgated in 6 NYCRR Part 700 et
Seq. The following construction activities that involve soil disturbances of one(1�or more acres of
land:
• Installation of underground, linear utilities; such as gas lines, fber-optic cable, cable N,
elecMc,telephone,sewer mains,antl water mains
•Environmental enhancement projects,such as wetland mitigation projects,stormwater retrofts and
stream restoration projects
• Pond construction
•Linear bike paths running through areas with vegetative cover,including bike paths surfaced with an
impervious cover
•Cross-countryskitrailsandwalking/hikingtrails
•Sidewalk,bike path orwalking path projects,surfaced with an impervious cover,that are not part of
residential,commercial or institutional development;
•Sidewalk,bike path or walking path projects,surfaced with an impervious cover,that include
incidental shoulder or wrb work along an existing highway to support constmction ofthe sidewalk,
bike path orwalking path.
•Slope stabilization projects
•Slope flattening that changes the grade ofthe site,but does not significantly change the runoff
characteristics
47 48
Appendix B Appendix B
T2b10 1(COf1tIf1U0dJ CONSTRUCTION ACTIVITIES 7HAT REQUIRE THE PREPARATION OF A T2b10 2
SWPPP CONSTRUCTION ACTNITIES THAT REQUIRE 7HE PREPARATON OF A SWPPP THAT INCLUDES
THAT ONLY INCLUDES EROSION AND SEDIMENT CON7F20LS POSTCONSTRUCTON STORNNJAlER MANAGEMENT PRACTICES
The following construction activities that involve soil disturbances of one(1)or more acres of
lantl: The following construction activities that involve soil disturbances of one(1)or more acres of
land:
•Spoil areas that will be covered with vegetation
• Vegetated open space projects(i.e.recreational parks,lawns,meadows,felds,downhill ski trails) • Single family home located in one ofthe watersheds listed in Appendix C or directlydischarging to
excluding projects that aRer hydrologyfrompre topost development conditions, one ofthe 303(d)segments listed in Appendix E
•Athletic felds(natural grass)that do not include the construction or reconstmction of impervious • Single family home that disturbs fve(5)or more acres of lantl
area and do not alter hydrologyfrompre to post development conditions • Single family residential subdivisions located in one ofthe watersheds listed in Appendix C or
• Demolition project where vegetation will be established,and no redevelopment is planned directly discharging to one ofthe 303(d)segments listed in Appendix E
•Werhead elecMc transmission line project that does not include the constmction of permanent • Single family residential subdivisions that involve soil disNrbances of between one(1)and fve(5)
access roads or parking areas surtaced with impervious cover acres of land with greater than 25°k impervious cover at total site build-out
•Structural practices as identified in Table II in the"AgnculNral Management Practices Catalog for • Single family residential subdivisions that involve soil disNrbances offve(5)or more acres of land,
Nonpoint Source Pollution in NewYork State",excluding projects that involve soil disturbances of and single family residential subdivisions that involve soil disturbances of less than five(5)acres
greater than five acres and constmction activities that include the constmction or reconstmction of that are part of a larger common plan of development or sale that will ultimately disturb five or more
impervious area acres of land
•Temporary access roads,median crossovers,detour roads,lanes,or other temporary impervious • Multi-family residential developments;includes duplexes,townhomes,condominiums,senior
areas that will be restored to pre-constmction conditions once the constmction activity is complete housing complexes,apartment complexes,and mobile home parks
• Airports
• Amusement parks
• Breweries,cidenes,and winenes,including establishments constmcted on agncultural land
• Campgrounds
• Cemeteries that include the constmction or reconstmction of impervious area(>5°k of disturbed
area)or alter the hydrology from pre to post development conditions
• Commercial developments
• Churches and other places of worship
• Constmction of a barn or other agricutturel building(e.g.silo)and stmcNral practices as identifed in
Table II in the"AgriculNral Management Practices Catalog for Nonpoint Source Pollution in New
York State"that include the constmction or reconstruction of impervious area,exclutling projects
that involve soil disturbances of less than fve acres.
• Golfcourses
• Institutional development;includes hospitals,prisons,schools and colleges
• Industrial facilities;includes industrial parks
• Landflls
• Municipal facilities;includes highway garages,transfer stations,offce buildings,PONV's,water
treatment plants,antl water storage tanks
• Office complexes
• Playgrounds that include the construction or reconstruction of impervious area
• Sports complexes
• Racetracks;includes racetracks with earthen(dirt)surtace
• Road constmction or reconstruction,including roads constmcted as part of the constmction
activities listed in Table 1
49 50
nvva�d�;:e
Table 2(Continued) APPENDIX C—Watersheds Requiring Enhanced Phosphorus Removal
CONSTRUCTION ACTNITES THAT REQUIRE THE PREPARATON OF A SWPPP THAT INCLUDES
POST-CONS7F2UCTON STORNNJATER MANAGENENT PRACTICES Watersheds where owners or operators of construction activities identified in
Table 2 of Appendix B must prepare a SWPPP that includes post-construction
The following construction activities that involve soil disturbances of one(1)or more acres of stormwater management practices designed in conformance with the Enhanced
lantl:
Phosphorus Removal Standards included in the technical standard,New York
• Parking lot constmction or reconstmction,including parking lots constructed as part ofthe State StOfmWatef Management Design ManUal(°Design ManUal°).
construction activities listed in Table 1
• Athletic felds(natural grass)that include the constmction or reconstruction of impervious area(>5°k
of disNrbed area)or alter the hydrology from pre to post development contlitions •Enti�e New Yo�k City Wate�shed located east of the Hudson Rive�-Figu�e 1
• Athletic felds with artificial turt •OnOndaga Lake Watefshed-FigUfe 2
• Permanent access roads,parking areas,substations,compressor stations and well drilling pads, •GfeenWOod Lake Watefshed-FigUfe 3
surfaced with impervious cover,and constmcted as part of an over-head elecMc transmission line •OsCaWana Lake Watefshed—FigUfe 4
project,wind-power project,cell tower project,oil or gas well drilling project,sewer orwater main •Kindefh0ok Lake Watefshed—Fi Ufe 5
project or other linear utility project
• Sidewalk,bike path or walking path projects,surfaced with an impervious cover,that are part of a
resitlential,commercial or instiNtional tlevelopment
• Sidewalk,bike path orwalking path projects,surfaced with an impervious cover,that are part of a
highway construction or reconstruction project
• All other construction activities that include the constmction or reconstmction of impeivious area or
aRer the hydrology from pre to post development conditions,and are not listed in Table 1
51 52
Appendix C Appendix C
Fiqure 1-New York Citv Watershed East of the Hudson Fiqure 2-Onondaqa Lake Watershed
���� ;� � - _
EEKMAN � -_ -� � CLAY I4
� I'� Cdi:tRia '.:.,'
1 �� ��
ERST F�SNKiLL - . r� �N�li$H�. ��L15F�--'
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ATT£RS'!3N i-� � " � '"L�—,� � �.
K£.JT f -:�� �..'.
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-� �nn�i�%us � �,:3_l
� SGUT+i�AST � � .e SYRRCLI$�Ir � f
FL1T lAh9 4'P.'_LE� '� ELFR[DGB �-.:� . � -
[�, DEWITT
t:ARMEL �f2F�N5TER — — — _ - ' ) �1 +..5,
� f41A�I�E6LUS �--,� r'� .. - —
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Pa R7H 511LE41 SRF,:��I�AY�L 5 DN6N�4GA� i
5�3M5.R5 •�— - — I�
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EdFOR❑ / LAFRYETTE
.p�f�+dC•f+.luG } �
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-�.N CA.$YLE �. ' _ '��,_ �TiSGO — __ _._ _ _ _
I
��SNlcf�3P �
6'�.:RTy CAST .. -- � � � I •-
1 {
zut�Y F �
H:.i.� i F4Sa.P:1'�� -�..., ..-���-} . _� .
. �i.. - - •'ry I
L'
— — -- - ——�` 1 - --- — -- _
� Ph�sphorus Wale s a '
�,rt�� :sori � �-�RE��� � �i
` EOH Walzrshed � � ,
53 54
nvva�d�;:c nvva�d�;:c
Fiqure 3-Greenwood Lake Watershed Fiqure 4-Oscawana Lake Watershed
PHlLIPSTOV'�N
WARWICK�
� KEdVT
i� _ -
� � pUTNAM VALLEY
� �, � � '_.._
�REENWQ(7D LAKE {' '-� ,
—oscnwwunu�x�`
Phn::,�hrm,s Wi�,.,,��,4,, �� �� !
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- I
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CARMEL
I�Phosphorus Walers#�eu
55 56
Appendix C
Fiqure 5-Kinderhook Lake Watershed APPENDIX D—Watersheds with Lower Disturbance Threshold
Watersheds where owners or operators of construction activities that involve soil
disturbances between five thousand(5000)square feet and one(1)acre of land
� must obtain coverage under this permit.
S'ANO LAKE
EA�1 GIiC�FiHllSFI , r„�'L
Entire New York City Watershed that is located east of the Hudson River-See Figure
1 in Appendix C
NASSAII 1
SCFI[7UAClC �Lr
[
1 CJEW LEBliN
1CINOERHQOKL � � .
�� CH�THRM , �
GRNRAN
VALATiC ,
To-wn,VilfeOe,or Crty 6ouiW ary lo�New lbr%SiaM ��
�KmtivYnmk La%e Wa[craM1CU � � ~~T~~�
57 58
303(d)Segments Impaired by Construction Related Pollutant(s)
APPENDIX E—303(d)Segments Impaired by Construction Related Pollutant(s) �utchess Fall Kill and eri6s Nutrienes
Dutchess Hillside Lake Nutrients
List of 303(d)segments impaired by pollutants related to construction activiry(e.g.silt,sediment Dutchess Wappingers Lake Nutrients
or nutrients).The list was developed using"The Final New York State 2016 Section 303(d)List Dutchess Wa Lake 5ilt/5ediment
of Impaired Waters Requiring a TMDL/Other Stretegy'dated November 2016.Owners or ppingers
operators of single family home and single family residential subdivisions with 25%or less total Erie Beeman Creek and tri6s Nutrients
impervious cover at total site build-out that involve soil disturbances of one or more acres of Erie Blimtt Creek,Lower,and tri6s 5ilt/Sediment
land,but less than 5 acres,and directly discharge to one of the listed segments below shall Erie Ellimtt Creek,Lower,and tribs Nutrients
prepare a SWPPP that includes post-construction stormwater management prectices designed Erie Green Lake Nutrients
in conformance with the New York State Stormwater Management Design Manual('Design Erie Little 5ister Creek,Lower,and tribs Nutrients
Manual"),dated January 2015. Erie MurderCreek,Lower,and tribs Nutrients
Erie Rush Creek and tri6s Nutrients
Erie ScajaquadaCreek,Lower,andtribs Nutrients
Erie ScajaquadaCreek,Middle,andtribs Nutrients
COUNTY WATERBODY POLLUTANT Erie ScajaquadaCreek,Upper,andtribs Nutrients
Al6any Ann Lee(Shakers)Pond,Stump Pond Nutrients Erie South Branch Smoke Cr,Lower,and tri6s Silt/Sediment
Al6any BasicCreekReservoir Nutrients Erie SouthBranch5mokeCr,Lower,andtribs Nutrients
Allegany Amity Lake,Saunders Pond Nutrients Essex Lake Champlain,Main Lake,South Nutrients
Bronx Longlsland5ound,Bronx Nutrients Essex LakeChamplain,5outhLake Nutrients
Bronx VanCortlandtLake Nutrients Essex WillsboroBay Nutrients
Broome Fly Pond,Deer Lake,Sky Lake Nutrients Genesee Bigelow Creek and tribs Nutrients
Broome MinorTri6stoLowerSusquehanna�north) Nutrients Genesee BlackCreek,Middle,andm ortribs Nutrients
Broome WhitneyPointLake/Resery Nutrients
Cattaraugus AlleghenyRiver/Reservoir Nutrients Genesee BlackCreek,Upper,andm ortribs Nutrients
Genesee Bowen Brook and tri6s Nutrients
Cattaraugus Beaver�Alma�Lake Nutrients
Cattaraugus Case Lake Nutrients Genesee LeRoy Reservoir Nutrients
Cattaraugus Linlyco/CIu6 Pond Nutrients Genesee OakOrchard Cr,Upper,andtribs Nutrients
Ca Duck Lake Nutrients Genesee Tonawanda Creek,Middle,Main Stem Nutrients
yuga Greene Schoharie Reservoir Silt/Sediment
Cayuga Little Sodus Bay Nutrients Greene Sleepy Hollow Lake Silt/Sediment
Chautauqua BearLake Nutrients Herkimer SteeleCreektribs Silt/Sediment
Chautauqua ChadakoinRiverandtribs Nutrients Herkimer SteeleCreektribs Nutrients
Chautauqua Chautauqua Lake,North Nutrients Jefferson Moon Lake Nutrients
Chautauqua Chautauqua Lake,South Nutrients
Chautauqua FindleyLake Nutrients Kings HendrixCreek Nutrients
Chautauqua Hul6urt/Clymer Pond Nutrients Kings Prospect Park Lake Nutrients
Clinton Great Chazy River,Lower,Main Stem Silt/Sediment Lewis Mill Creek/South Branch,and tribs Nutrients
Clinton LakeChamplain,MainLake,Middle Nutrients ���ingston ChristieCreekandtri6s Nutrients
Clinton Lake Champlain,Main Lake,North Nutrients Livingston Conesus Lake Nutrients
Columbia KinderhookLake Nutrients Livingston MiIlCreekandminortribs Silt/Sediment
Colum6ia Ro6imm�Pond Nutrients Monroe BlackCreek,Lower,andm ortri6s Nutrients
Monroe BuckPond Nutrients
Cortland DeanPond Nutrients Monroe CranberryPond Nutrients
59 60
303(d)Segments Impaired by Construction Related Pollutant(s) 303(d)Segments Impaired by Construction Related Pollutant(s)
Monroe Lake Ontario 5horeline,Western Nutrients Onondaga Onondaga Lake,northern end Nutrients
Monroe Long Pond Nutrients Onondaga Onondaga Lake,southern end Nutrients
Monroe MiIlCreekandtribs Nutrients Ontario GreatBrookandminortri6s Silt/Sediment
Monroe MiIlCreek/BluePondOutletandtribs Nutrients Ontario GreatBrookandminortri6s Nutrients
Monroe MinorTri6stolrondequoitBay Nutrients Ontario HemlockLakeOutletandminortri6s Nutrients
Monroe RochesterEmbayment-East Nutrients Ontario HoneoyeLake Nutrients
Monroe RochesterEm6ayment-West Nutrients Orange GreenwoodLake Nutrients
Monroe ShipbuildersCreekandtribs Nutrients Orange MonhagenBmokandtribs Nutrients
Monroe ThomasCreek/WhiteBrookandtribs Nutrients Orange OrangeLake Nutrients
Nassau BeaverLake Nutrients Orleans LakeOntario5horeline,Western Nutrients
Nassau CamaansPond Nutrients Orleans LakeOntario5horeline,Western Nutrients
Nassau East Meadow Brook,Upper,andtri6s Silt/Sediment Oswego Lake Neatahwanta Nutrients
Nassau East Rockaway Channel Nutrients Oswego Pleasant Lake Nutrients
Nassau Grant Park Pond Nutrients Putnam Bog Brook Reservoir Nutrients
Nassau Hempstead Bay Nutrients Putnam Boyd Corners Reservoir Nutrients
Nassau Hempstead Lake Nutrients Putnam Croton Falis Reservoir Nutrients
Nassau HewlettBay Nutrients Putnam DivertingReservoir Nutrients
Nassau Hog Island Channel Nutrients Putnam East Branch Reservoir Nutrients
Nassau Longlsland5ound,NassauCountyWaters Nutrients Putnam LakeCarmel Nutrients
Nassau Massapequa Creek and tribs Nutrients Putnam Middle Branch Reservoir Nutrients
Nassau Mil6urn/Parsonage Creeks,Upp,and tri6s Nutrients Putnam Oscawana Lake Nutrients
Nassau Reynolds Channel,west Nutrients Putnam Palmer Lake Nutrients
Nassau TidalTri6stoHempsteadBay Nutrients Putnam WestBranchReservoir Nutrients
Nassau Tri6s(fresh�to East Bay Nutrients Queens Bergen Basin Nutrients
Nassau Tri6s�fresh�toEastBay Silt/Sediment queens FlushingCreek/Bay Nutrients
Nassau Tri6sm Smith/Halls Ponds Nutrients queens Jamaica Bay,Eastern,and tribs(queens) Nutrients
Nassau WoodmereChannel Nutrients queens KissenaLake Nutrients
NewVork Harlem Meer Nutrients queens Meadow Lake Nutrients
New Vork The Lake in Central Park Nutrients queens Willow Lake Nutrients
Niagara BergholtzCreekandtribs Nutrients Rensselaer NassauLake Nutrients
Niagara Hyde Park Lake Nutrients Rensselaer Snyders Lake Nutrients
Niagara Lake Ontario 5horeline,Western Nutrients Richmond Grasmere Lake/Bradys Pond Nutrients
Niagara LakeOntario5horeline,Western Nutrients Rockland CongersLake,SwartoutLake Nutrients
Oneida Ballou,NailCreeksandtri6s Nutrients Rockland RocklandLake Nutrients
Onondaga Har6or Brook,Lower,and tribs Nutrients Saratoga Ballston Lake Nutrients
Onondaga LeyCreekandtribs Nutrients Saratoga DwaasKillandtribs Silt/Sediment
Onondaga MinorTri6stoOnondagaLake Nutrients Saratoga DwaasKillandtribs Nutrients
Onondaga Ninemile Creek,Lower,and tribs Nutrients Saratoga Lake Lonely Nutrients
Onondaga Onondaga Creek,Lower,and tribs Nutrients Saratoga Round Lake Nutrients
Onondaga Onondaga Creek,Middle,andtri6s Nutrients Saratoga Tribsm Lake Lonely Nutrients
61 62
303(d)Segments Impaired by Construction Related Pollutant(s) 303(d)Segments Impaired by Construction Related Pollutant(s)
Schenectady CollinsLake Nutrients Warren Huddle/FinkleBrooksandtri6s Silt/Sediment
Schenectady DuaneLake Nutrients Warren IndianBrookandtribs Silt/Sediment
Schenectady MariavilleLake Nutrients Warren LakeGeorge Silt/Sediment
Schoharie Engleville Pond Nutrients Warren Tribs to L.George,Village of L George Silt/Sediment
Schoharie Summit Lake Nutrients Washington Cossayuna Lake Nutrients
Seneca ReederCreekandtri6s Nutrients Washington LakeChamplain,5outhBay Nutrients
St.Lawrence Black Lake 0utlet/Black Lake Nutrients Washington Tri6s to L.George,East 5hore Silt/Sediment
St.Lawrence FishCreekandminortri6s Nutrients Washington WoodCr/ChamplainCanalandminortribs Nutrients
Steu6en SmithPond Nutrients Wayne PortBay Nutrients
Suffolk AgawamLake Nutrients Westchester AmawalkReservoir Nutrients
Suffolk Big/Little Fresh Ponds Nutrients Westchester Blind Brook,Upper,and tribs Silt/Sediment
Suffolk Canaan Lake Silt/Sediment Westchester Cross River Reservoir Nutrients
Suffolk Canaan Lake Nutrients Westchester Lake Kamnah Nutrients
Suffolk Flanders Bay,West/LowerSawmill Creek Nutrients Westchester Lake Lincolndale Nutrients
Suffolk Fresh Pond Nutrients Westchester Lake Meahagh Nutrients
Suffolk Great South Bay,East Nutrients Westrhester Lake Mohegan Nutrients
Suffolk GreatSouthBay,Middle Nutrients Westchester LakeShenorock Nutrients
Suffolk Great 5outh Bay,West Nutrients Westchester Long Island 5ound,Westchester(East) Nutrients
Suffolk Lake Ronkonkoma Nutrients Westchester Mamaroneck River,Lower Silt/Sediment
Suffolk Longlsland5ound,5uffolkCounty,West Nutrients Westchester MamaroneckRiver,Upper,andminortribs Silt/Sediment
Suffolk Mattituck(Marratooka)Pond Nutrients Westchester Muscoot/Upper New Croton Reservoir Nutrients
Suffolk Meetinghouse/Terrys Creeks and tribs Nutrients Westchester New Croton Reservoir Nutrients
Suffolk Mill and Seven Ponds Nutrients Westchester Peach Lake Nutrients
Suffolk Millers Pond Nutrients Westchester Reservoir No.l(Lake Isle) Nutrients
Suffolk Moriches Bay,East Nutrients Westchester Saw Mill River,Lower,and tri6s Nutrients
Suffolk Moriches Bay,West Nutrients Westchester Saw Mill River,Middle,and tri6s Nutrients
Suffolk Pemnic River,Lower,and tidal tribs Nutrients Westchester Sheldrake River and tribs Silt/Sediment
Suffolk quanwckBay Nutrients Westchester SheldrakeRiverandtri6s Nutrients
Suffolk ShinnecockBayandlnlet Nutrients Westchester SilverLake Nutrients
Suffolk Tidaltri6smWestMorichesBay Nutrients Westchester TeatownLake Nutrients
Sullivan Bodine,MontgomeryLakes Nutrients Westchester TiticusReservoir Nutrients
Sullivan Davies Lake Nutrients Westchester Truesdale Lake Nutrients
Sullivan EvensLake Nutrients Westchester WallacePond Nutrients
Sullivan Pleasure Lake Nutrients Wyoming Java Lake Nutrients
Tompkins Cayuga Lake,Southern End Nutrients Wyoming Silver Lake Nutrients
Tompkins Cayuga Lake,Southern End Silt/Sediment
Tompkins Owasm Inlet,Upper,and tribs Nutrients
Ulster Ashokan Reservoir Silt/Sediment
Ulster EsopusCreek,Upper,andminortribs Silt/Sediment
Warren Hague Brook and tri6s Silt/Sediment
63 64
APPENDIX F—List of NYS DEC Regional Offices
fi
50 CiaaE Rono 50 CiaaE Rono
� Nnssnu nrvo SUFFo�x Siorvv Baoox,Nr 11]90 Siorvv Baoox,Nr 11]903409
TE�.(631)444-0%5 TE�.(631)444d405
1HurviEaSPoirviP�azn, 1HurvhaSPoirviP�azn,
2 Baorvx,Kirv�S,NEwVoax, 4]-00215iSi. 4]-40215iSi.
QUEErvSnrvoRicxmorvo Lorv�IS�nrvoCiir,Nr11101-540] Lorv�IS�nrvoQir,Nr11101b40]
TE�.(]18)482-499] TE�.(/18)482-0933
DuicxE55,0anrv�E,Puirvnm, 21SouixPuiiCoarvEaSRono 100W��5mEAVErvuE,SuiiE1w
3 Rocx�nrvo,Su��rvnrv,U�siEa NEwPn�rz,Nv12561-1696 WxiiEP�nirv5,Nv10603
nnuWEsicxEsiEa Te�.(845)2563059 Te�.(914)428-2505
A�anrvv,Co�umain,
DE�nwnaE,GaEErvE, 1150NoaixWESrcoiiRono 1130NoaixWESicoiiRono
Q Morvi�omEav,OisE�o, ScxErvEcinov,Nv 12306-2014 ScxErvEcrnov,Nv 12306-2014
RErv55E�nEa,ScxErvEcinov Te�.(518)35]-20G9 Te�.(518)35]-2045
nrvo ScxoxnaiE
C�irviorv,E55Ex,Fxnnn�in, ���SSiniERouiE86,POBox296 232Go�FCouaSERono
5 Fu�iorv,Hnmi�iorv, qpygaoox,Nv129]]-029G WnaaErvSaua�,Nv12885-11]2 TE�.
Snanio�n,Wnxxennnu ���518)89]-1234 (518)623-12(10
Wnsxirv�iory
HERKIMER�EFFERSON, STATEOFFICEBUILDING STATEOFFICEBUILDING
6 LEWIS,ONEIDAAND 31]WASHINGTONSTREET 20]GENESEESTREET
ST.LAWRENCE WATERTOWN,NV 136013]8] UTICA,NV 13501-2885 TEL.(315)
TEL.(315)]85-2245 ]93-2554
BROOME,CAVUGA,
CHENANGO,CORTLAND, 615 ERIE BLVD.WEST 615 ERIE BLVD.WEST
] MADISON,ONONDAGA, SVRACUSE,NV 13204-2400 SVRACUSE,NV 13204-2400
OSWEGO,TIOGA AND TEL.(315)426-]438 TEL.(315)426-]500
TOMPKINS
CHEMUNG,GENESEE,
LIVINGSTON,MONROE, 62]4EASTAVON-LIMA 62]4EASTAVON-LIMARD.
$ OMARIO,ORLEANS, ROADAVON,NY 144149519 AVON,NY 14414-9519
SCHUVLER,SENEClS �L.(585)226-2466 TEL.(585)226-2466
STEUBEN,WAVNE AND
VATES
ALLEGANV, Z�pMICHIGANAVENUE 2]OMICHIGANAVENUE
9 CATTARAUGUS, gUFFALO,NY 14203-2999 BUFFALO,NV14203-2999
CHAUTAUQUA,ERIE, �L.(/16)851-]165 TEL.(/16)851-]0]0
NIAGARAAND WVOMING
65
Appendix G
Historic Preservation/Endangered Species Documentation
��w�o�� P�rl�� ���cre�a�i�r�
STATE C�F � �
�PP�RTUNIT� ��� �{�IS���'IC �I����I'�"��I��1
ANDREW M. CUOMO ROSE HARVEY
Governor Commissioner
August 28, 2015
Ms. Shannon Wright
Hartgen Archeological Associates, Inc.
1744 Washington Ave, Ext.
Rensselaer, NY 12144
Re: DEC
Saratoga Hospital Collins Property
Between Saratoga golf course, South Collins terrace, Morgan Street
, NY
15PR04515
Dear Ms. Wright:
Thank you for requesting the comments of the Office of Parks, Recreation and Historic
Preservation (OPRHP). We have reviewed the project in accordance with the New York State
Historic Preservation Act of 1980 (Section 14.09 of the New York Parks, Recreation and
Historic Preservation Law). These comments are those of the OPRHP and relate only to
Historic/Cultural resources. They do not include potential environmental impacts to New York
State Parkland that may be involved in or near your project. Such impacts must be considered
as part of the environmental review of the project pursuant to the State Environmental Quality
Review Act (New York Environmental Conservation Law Article 8) and its implementing
regulations (6 NYCRR Part 617).
Based upon this review, it is the New York State Office of Parks, Recreation and Historic
Preservation's opinion that your project will have no impact on archaeological and/or historic
resources listed in or eligible for the New York State and National Registers of Historic Places.
If further correspondence is required regarding this project, please be sure to refer to the
OPRHP Project Review (PR) number noted above.
Sincerely,
���' �
Ruth L. Pierpont
Deputy Commissioner for Historic Preservation
Division for Historic Preservation
P.O. Box 189,Waterford, New York 12188-0189•(518)237-8643•www.nysparks.com
Myrtle Street Saratoga Hospital
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June 15, 2021 1:9,028
0 0.07 0.15 0.3 mi
0 0.13 0.25 0.5 km
Sources: Esri, HERE, Garmin, Intermap, increment P Corp.,GEBCO,
USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance
Survey, Esri Japan, METI, Esri China (Hong Kong), (c)
OpenStreetMap contributors,and the GIS User Community
Author:The LA Group
Not a legal document
Appendix H
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Appendix I
Stormwater Maintenance Agreement
SAMPLE DEED COVENANT
DECLARATION OF RESTRICTIVE COVENANT
REGARDING STORMWATER MAINTENANCE
This Declaration of Restrictive Covenant regarding Stormwater Maintenance is
entered into effective the day of , by
(the "Owner"), as owner of the real property located at
And more particularly described in Exhibit A attached hereto and made a part hereof(the
"Pro e "). The Owner hereby acknowledges and agrees that the Property shall be
operated and maintained in accordance with the operation and maintenance plan set forth
in Schedule A and Schedule B attached hereto and made a part hereof.
This restrictive covenant shall run with the land and be binding on the successors
and assigns of the owner.
DATED EFFECTIVE the day and year written above.
Exhibit A
LEGAL DESCRII'TION
(Insert Legal Description of property (e.g., All that certain plot,piece or parcel of land
situate, lying...)
Schedule B
STORMWATER CONTROL FACILITY
MAINTENANCE AGREEMENT
The facility owner desires that the stormwater control measures be built in accordance
with the approved project plans and thereafter be maintained, cleaned,repaired, and
replaced and continued in perpetuity in order to ensure optimum performance of the
components. Therefore, facility owner agrees as follows:
1. This document binds the facility owner, its successors and assigns, to the
maintenance provisions depicted in the approved projectplan which is attached as
Schedule A of this agreement.'
2. The facility owner shall maintain, clean,repair, replace and continue the
stormwater control measures depicted in Schedule A as necessary to ensure
optimum performance of the measures to design specifications. The stormwater
control measures shall include, but shall not be limited to, the following: drainage
ditches, swales, infiltrators, drain inlets,pipes, and culverts.
3. The facility owner shall be responsible for all expenses related to the maintenance
of the stormwater control measures and shall establish a means for the collection
and distribution of expenses among parties for any commonly owned facilities.
4. The facility owner shall provide for the periodic inspection of the stormwater
control measures, not less than once every five-year period, to determine the
condition and integrity of the measures. Such inspection shall be performed by a
Professional Engineer licensed by the State of New York The inspecting
engineer shall prepare and submit to the facility owner within 30 days of the
inspection, a written report of the findings including recommendations for those
actions necessary for the continuation of the stormwater control measures.
5. The facility owner shall not authorize, undertake or permit alteration,
abandonment, modification or discontinuation of the stormwater control measures
except in accordance with written approval of the agencies having jurisdiction.
6. The facility owner shall undertake necessary repairs and replacement of the
stormwater control measures in accordance with the recommendations of the
inspecting engineer.
7. This agreement shall be recorded in the Office of the County Clerk, County of
, together with the deed for the common property.
8. This agreement is effective