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Home My WebLink About20210755 269 Broadway Site Plan Water and Sewer Report Water and Sewer Report for 269 Broadway City of Saratoga Springs Saratoga County, New York July 2021 Revised October 2021 pF NE W 1'` fpspg4�4 Ill -. *It. H %�IyON. �{4 7 5 ��' ESSIO a od. Prepared by: Mil Engineering and 1533 Crescent Road Land Surveying, P.C. Clifton Park, NY 12065 Tel 518-371-0799 Fax 518-371-082 thl Engineering and Land Surveying,P.C. WATER AND SEWER REPORT for 269 BROADWAY CITY OF SARATOGA, SARATOGA COUNTY, NY Table of Contents 1.0 INTRODUCTION 1 1.1 Project Description 1 1.2 Location 1 1.3 Existing City Water/Sewer 1 1.4 Wetlands 1 1.5 100-Year Flood Plain 1 2.0 DESIGN STANDARDS 2 2.1 NYSDEC Water and Sewer Demand and Design Standards 2 2.2 Proposed Water System 3 2.3 Proposed Sewer System 3 2.4 District Extension 3 2.5 Financing 3 2.6 Conclusion 3 3.0 EXHIBITS 4 Exhibit 1 - Hydrant Flow Data Exhibit 2 -Grease Interceptor Design Calculations L:\PROJECTS\MJ987-PRIME GROUP HOLDING\MJ987.04-269 BROADWAY\REPORTS\WATER-SEWER\WATER AND SEWER REPORT 9-14-20.DOCX October 2021 AIEngineering and Land Surveying,P.C. Water/Sewer Engineering Report 1.0 INTRODUCTION 1.1 Project Description This Engineering Report describes the existing and proposed water and sewer systems proposed to service the project located at tax parcels 165.75-1-7 located at 269 Broadway in the City of Saratoga. The existing site is current vacant, but the project site formally had a 1-story office building on the property. The site is proposed to construction a 6-story office, retail space building totaling approximately 116,000 sf. The proposed building layout is defined below: • First Floor- Retail (17,320 sf) • Second Floor— Restaurant (Total 6,227 sf, Dining Area 4,791 sf, Kitchen 1,436 sf, 240 seats) • Second Floor—Office (7,698 sf) • Third Floor-Office (18,906 sf) • Fourth Floor—Office (18,853 sf) • Fifth Floor—Office (18,853 sf) • Six Floor- Office (13,728 sf) 1.2 Location The property is located at located at 269 Broadway and the parcel is zoned T-6. 1.3 Existing City Water/Sewer The City owns and maintains an existing gravity sewer and water distribution main on Hamilton Street and Broadway surrounding the project site. The project site is currently serviced with public water via an unknown water size but less than 2-inches in size and a gravity sewer lateral connecting to Hamilton Street. On Hamilton Street there are current a 4 and 6-inch watermains while on Broadway there is a 12-inch watermain from record drawings. The gravity sewer for the parcel is available from Hamilton Street via a 12-inch clay pipe. The flow rates, static and residual pressure were as follows: Hydrant#41 on Broadway=1220 gpm with a static pressure of 69 psi and a residual pressure of 60 psi for hydrant #42 Hydrant on Hamilton =1332 gpm with a static pressure of 90 psi and a residual pressure of 80 psi for hydrant at the corner of Hamilton and Congress. See Exhibit for hydrant flow test results and tests were done on different days. 1.4 Wetlands There are no ACOE or NYSDEC jurisdictional wetlands are within the project limits. 1.5 100-Year Flood Plain Per National Flood Insurance Map (FIRM) panel 36091C0433 E dated August 16, 1995 the project site is located outside of AE zone (100-year flood plain). October 2021 Page 1 AIEngineering and Land Surveying,P.C. Water/Sewer Engineering Report 2.0 DESIGN STANDARDS 2.1 NYSDEC Water and Sewer Demand and Design Standards The proposed water lateral to the new building will be a 6.0" lateral. The water services to provided domestic and fire suppression within the buildings. Anticipated water flows are as follows: Table 1-Water Usage Average Daily Flow Average Flow Peak Flow (GPD) (GPM) (GPM) First Floor- Retail (17,320 sf) 1,730 1.20 2.40 Second Floor - Restaurant (6,227 sf, 8,400 5.83 11.67 240 seats) Second Floor-Office (7,698 sf) 577 0.40 0.80 Third Floor-Office (18,906 sf) 3,814 2.65 5.30 Fourth Floor-Office (18,853 sf) 1,414 0.98 1.96 Fifth Floor-Office (18,853 sf) 1,414 0.98 1.96 Six Floor- Office (13,728 sf) 1,030 0.72 1.44 Totals= 18,379 12.76 25.53 Table B-3 of NYSDEC Design Standards for Intermediate Sized Water Treatment Systems dated 3/5/2014 was used to determine anticipated flow rate, 15 gallons per employee in office/retail. Typical ratio of 200 sf per employees was used for office space. Retail space was assumed at 0.1 gallons per square foot. Assumed seating of 100 seats for the restaurant at 35 gallons per seat. Plumbing Fixtures will be specified as low flow type fixtures per NY State requirements for water conservation. Anticipated sewer flows are as follows: Table 1-Sewer Flows Average Daily Flow Average Flow Peak Flow (GPD) (GPM) (GPM) First Floor- Retail (17,320 sf) 1,730 1.20 4.80 Second Floor - Restaurant (6,227 sf, 8,400 5.83 23.32 240 seats) Second Floor-Office (7,698 sf) 577 0.40 1.60 Third Floor-Office (18,906 sf) 3,814 2.65 10.60 Fourth Floor-Office (18,853 sf) 1,414 0.98 3.92 Fifth Floor-Office (18,853 sf) 1,414 0.98 3.92 Six Floor- Office (13,728 sf) 1,030 0.72 2.88 Totals= 18,379 12.76 51.04 October 2021 Page 2 Engineering and Land Surveying,P.C. Water/Sewer Engineering Report 2.2 Proposed Water System The proposed 6-inch building water service will connect to the existing watermain on Hamilton Street for both domestic and fire sprinkler needs. The water service will be provided with an individual water meter and backflow prevention device. A Mechanical, Electrical and Plumbing (MEP) Engineer will be designing the sprinkler and domestic services within the building and will be provided to the City in a separate report demonstrating that pressure loss within the system during the building permit process. In addition, the MEP engineer will be providing the City with back flow prevention report in conformance with the rules and regulations with a completed DOH- 347 form. Based upon flow characteristics of the existing City water system a water pump may not be required to meet domestic and fire flow requirements as theoretically the water pressure for the sprinkler system on the sixth floor would be between 36 to 50 psi. 2.3 Proposed Sewer System The proposed gravity sewer lateral will connect to the existing 12-inch gravity sewer on Hamilton Street. The proposed gravity sewer will consist of two (2) 4-inch PVC laterals, one (1) sewer manhole and one (1) 2,000 gallon grease tank for the restaurant. There are no known sewer capacity issues in this area. The existing 12- inch sewer can transport 3.08 cfs or +/-1,380 gpm within the existing sewer pipe (manning's equation 2/3 pipe full). With a peak sewer rate of 28 gpm this equates to 0.08 inches (less than 1/64 of an inch) of additional flow depth in the existing sewer pipe. 2.3.1 Type II Grease Interceptor Per NYSDEC Design Standards for Intermediate Sized Wastewater Treatment System dated 2014 grease interceptor shall be a minimum of 2,000 per table D-1 with a 4" inlet pipe. See Exhibit 2 for sizing calculations. 2.4 District Extension The project is located within the city limits, and as such, will not be required to extend the water district. 2.5 Financing Financing the proposed water and sewer improvements to the site shall be born entirely by the developer of the project. 2.6 Conclusion The project water and sewer demands will not impacted the existing water or sewer infrastructure. October 2021 Page 3 0 Engineering and Land Surveying,P.C. Water/Sewer Engineering Report 3.0 EXHIBITS October 2021 Page 4 tMIEngineering and Land Surveying,P.C. Water/Sewer Engineering Report Exhibit 1 - Fire Hydrant Flow Data October 2021 Page 5 Ft, Eclat 7e>reP s . P.O. BOX 508 BURNT HILLS, N.Y. 12027 (518) 885-1115 FAX (518)885-0526 D HYDRANT FLOW TEST REPORT LOCATION: kottwiicrou ST/1(E sieseicroG4 5P o6- TEST BY: eA7Le-MtT 400E4&4 /%J / &=A-7r1 DATE: 8 - -• LO f' TIME: It: A P TARGET HYD. LOCATION (B) - A i L--r, off- /.(4, /fi�7--}W c a - S TEST RESULTS : STATIC PRESSURE (B) 90 PSI RESIDUAL PRESSURE (B) o0 PSI WITH / 5 3 1. (A) GPM FLOWING RESIDUAL PRESSURE (B) PSI WITH (A) GPM FLOWING FLOW HYD. LOCATION (A) i-1 rTrA) sr 1/ 1) PORT FLOWED (A) 12_ DIAMETER 'z- 2) PORT FLOWED (A) DIAMETER 3) PORT FLOWED (A) DIAMETER 1) PITOT or IFgaPAUIREADiNG (A) Co 3 PSI AT ( L. GPM 2) PITOT or FLOW METER READING (A) PSI AT GPM 3) PITOT or FLOW METER READING (A) PSI AT GPM OUTLET COEFFICIENT USED .10 (smooth 0.90) (square & sharp 0.80) (projecting into barrel 0.70) ESTIMATED FLOW AT 20 PSI 3 Bo '1 GPM LOCATION SKETCH ATTACHED ? YES )< NO b'47; 'NI ..A. S.....e... .i..... '70.4:_-_,:,,i, 1,...ff.t., i...ki&L...- qf'. ' 404.,- --z:-.4. ,..___ ii, ...Tiw, 4,....„, t.„.-• )—. ., fi.. - 71:. .1'.4'1441°'''..c.41,..' ' AjeUtilliV'' ' '41'. - * -georL,__- ..-.. .. - '- , 'N -'_ brir4 . A .• _i_u .., .'a:7 • ' ' ir , Fe„,....'",. �! ! - ; • q tiL - - -• Kira. - rb 4- ik, _.*Ii, .. �, z.?!►# ! /4t! M a A. ."' -` - -c •!V ' 40. - iiptilko +� 'zc,f 1 6 4, a y+Y . + • ,A --,, S `.•'' ..R-• 4t „ 1 .ii • . ` �� . - 1 '144,,,k . . ... ' . �. ,. qtr ;ar.. " ': y pet 41.E,. 1 ' R -j+-�. •fir ,' - . ` ' 111 isi , •'''' - / S Pi - , ._ ._ , . ". 1..-z- rr .44, 4 44 4,.# t`= a _ /y --r �'-.*.-W- . # __ N.*. ....„ d • , 'A- -if-7• .-: ' .. e -.2•.&,,,,. 1 . en:, ...k__ , . , --:- - % --k-,.... e . . * r, I •`! i� "470:...--. . . 2 ''' / ./ -� ,.. • • I' ° LQ _ • 'I' `"/` •` ik tits yi'.=' �- • n's AOL _ii,i, W kic-1114.-,, 11 - '--".•-='-'- --- 'i.-.'''' • ' - . 4....:00 _op:, 404.4s0,/,, ,,, ,. :, ,:p., , 1,,,..., ,1,,,,,:, : 44444114:‘.. . 4411kLi4t*:4(4i1: ' ' _tr-- _ _ A ` 'am" 0 Engineering and Land Surveying,P.C. Water/Sewer Engineering Report Exhibit 2—Grease interceptor Design Calculations October 2021 Page 1 M.J. Engineering & Land Surveying, P.C. Project 269 Broadway 1533 Crescent Road-Clifton Park, N.Y. 12065 MJ No. 987.04 P.I.N. Phone: (518)371-0799 Sheet No. 1 of 2 Fax: (518)371-0822 Calculated By: AS Date: 10/8/2021 Checked By: SH Date: Subject: Theoretical Wastewater Flows Evaluation PROPOSED FLOWS 1.Restaurant Hydraulic Loads Total#of Assumed Seats: 240 Hydraulic Loading Rate1 : 35 gpd/seat Restaurant Hydraulic Loading: 8,400 gpd Total Proposed Hydraulic Load: 8,400 gpd 4 Proposed Maximum Daily Flow Calculation Notes: 1 Hydraulic loading rates from Table B-3 Typical Per-Unit Hydraulic Loading Rates from the New York State Design Standards for Intermediate Sized Wastewater Treatment Facilities(2012) Food Service Operations'. Type of(1.s.e ,dr Gallons per Day Ordinary Restaurant Per Seat 35 M.J. Engineering & Land Surveying, P.C. Project 269 Broadway 1533 Crescent Road-Clifton Park, N.Y. 12065 MJ No. 987.04 P.I.N. Phone: (518)371-0799 Sheet No. 2 of 2 Fax: (518)371-0822 Calculated By: AS Date: 10/8/2021 Checked By: SH Date: Subject: Grease Trap Sizing 1. Grease Tank Sizing Kitchen Sewer Lateral: 4 inch diameter Min.Grease Trap Volume: 2000 gallons per Table D-1, DEC Design Standards Table 1)-1 Gravity(Type II)Grease Interceptor Sizing Based on Crease-Laden Building Sesver Pipe Flowing Halt Full Grease Interceptor Inlet Pipe Flow Nominal Interceptor Volume(Gallons) Size{inches) (GPM) (based on 30-minute settling=HI 2" 10 500 3" 30 1,000 t" 65 2,000 115 3,500 1R8 6.000 2. Grease Trap Selection: -D.A.Collins(Pallette Stone Corp.),2,000 gallon Precast Heavy Duty Septic Tank PALLETTE STONE CORP. Precast Product Division I 373 Washington Street, Saratoga Springs, New York 12866 Phone: (518) 584-589I I Fax (5 I8) 584-2622 I www.dacollins.com CUSTOMER: BY: _CDW PRODUCT: 2000 GAL HD SEPTIC TANK REV: SHEET: _1_ OF_1_ PROJECT: DATE: —1/5/16 NOTES: (1)ST2000HDB 1. 4000PSI CONCRETE . a (1)ST2000HDTST 2. GRADE 60 REINFORCEMENT 6'-O" N (1)ST2000HDBAF 3. DESIGN ASSUMPTIONS: Z HS-20 LIVE LOAD + 30% I 4' MAX EARTH COVER 0 WATER TABLE AT GRADE 62" x 12" KEYWAY : O �, , (WORST CASE) FOR SLIDE-IN zzr 11J w in4. C.L. INLET TO TOP = 12" BAFFLE m C.L. INLET TO BOTTOM = 5'-2" i 8" ROOF WEIGHTS c zzr 6" WALLS BASE: 7.8T 6" BASE TOP: 7.5T j - 6" BAFFLE BAFFLE: 1.1T c N EA TANK SHIPS WITH: c o (3) ROLLS 1" BUTYL r ao 7'-0" 0 C � 4'-8,. 3'-6" 3%6" A ..., 8" RECESS KNOCKOUT FOR MORTAR CONNECTION OR RUBBER BOOT (1.5" - 24" HOLE - cfl 6" AVAILABLE) (4) TYP. (2) TYP. 9 SIDES FOLD UP - INSIDE DIMENSIONS ih is -o 1 6'-2 " H c r CV O 1 ' 1 I 3'-6" J 4"x18" SLOT � ► I ELEVATION - BAFFLE PLAN VIEW - INTEGRAL TOP