HomeMy WebLinkAbout20210197 Agrochem Site Plan Review Letter � 1964-a019
L r �
Group , ��F
FXCEt.I_II�lCF
�__'___'___'____�
__ _-_'_.____'____'_____________'"____"-""___"___'_______'__'"_-______-____'______'___-
Ef�lGINEERiPJG a ARCI-IIiECTURt � SURVEYING � PLANNING
August 3, 2021
VIA MAIL & EMAIL
Ms. Kari Donohue
Administrative Assistant—Engineering
City of Saratoga Springs
474 Broadway
Saratoga Springs,New York 12866
Re: AgroChem Expansion
Stormwater Management Plan Review
Citv of Sarato�a Springs,New York
Dear Ms. Donohue:
We are in receipt of a set of site plans with details dated May 2021, a SWPPP dated February 2021, and a
Response to Comments letter dated May 12, 2021 for the above referenced project. We offer the following
comments that should be satisfactorily addressed by the applicant:
1. While the applicant has added information to the infiltration basin detail,the following should a(so
be indicated on the plans:
a. The requirement that the bottom of the infiltration basin be located a minimum of 3 feet
above seasonal high ground water; and
b. Construction notes (also provided in the sequence of construction) that indicate the area
shall be protected from heavy construction equipment traffic and not conneeted to the storm
system unti(the completion of construction and the final stabilization of all upstream areas.
2. The SWPPP should expand upon the descriptions of potential sources of stormwater pollution,such
as: construction debris, litter, chemicals/materials associated with construction, and post
construction pollution sources such as petroleum products discharges, and the best management
practices to be implemented to prohibit discharges.
� 3. Dry Wells [In accordance with the NYS DEC Stormwater Design Manual for Dry Well (I-3)]:
a. The design should be revised to be in accordance with the design guidance (Section 6.3.1
page 6-35), that states that the drainage area to dry wells should include rooftop runoff
only;
b. The design and construction details should be revised to indicate dry wells to have a
maximum depth of 4 feet(page 6-42 of the Design Manual); and
c. Observation Well:
i. The plans should indicate an observation well to be installed at each dry well in
� accordance with the required elements(Section 63.6 page 6-38). �
4 Computer Drive West•Albany,New York 12205•(51�)458-7112•Fax(518)458-1879
www.laber�egroup.com
Kari Donohue
August 3,2021
Page 2 of 2
ii. A construction detail should be provided for the observation well that includes an
anchored six- inch diameter perforated PVC pipe with a lockable cap installed
flush with the ground surface.
Please contact our office with any questi�ns ar comments on the above.
Very truly yours,
LABERGE GROUP
...
'� � .
�,`�,,� ,...�
B .,- -� _..._-..
y. � �.�
Phi p E. Koziol, P.E.
Project Manager
PEK:jkb
J:�2021034\Correspondence\Review Letter 08_03_2021.docx