HomeMy WebLinkAbout20251108 Crescent Ave & Jefferson St Site Plan Modification Sewer Loading Calculations
December 4, 2025
James Salaway, City Engineer
City of Saratoga Springs
474 Broadway
Saratoga Springs, NY 12866
RE: Liberty at Saratoga – Sewer Loading Calculations
City of Saratoga Springs, Saratoga County, New York
LaBella Project #2224112
Dear Mr. Salaway,
We are pleased to present you with the sanitary sewer loading letter evaluation in support of the
proposed development of the Liberty at Saratoga affordable work force housing project, along
Crescent Avenue, in the City of Saratoga Springs, Saratoga County, New York. Liberty Affordable
Housing, Inc. (the “Developer”) is proposing to construct two (2) affordable workforce housing
buildings, comprised of 216 units, on an existing vacant parcel of land across Bunny Lake Drive from
the Saratoga Casino Hotel. A summary of the anticipated increase in sewer loading from the project is
presented below.
Municipal Sanitary Sewer System:
All sanitary sewer discharge from the project site will be directed, via gravity, to an on-site pump station.
The pump station will discharge, via force main, west toward Jefferson Street connecting to the City’s
municipal sanitary sewer manhole between Crescent Avenue and Clubhouse Drive. It is our
understanding based on conversations with the City Engineering Department and Saratoga County
Sewer District 1 (SCSD), after connecting to the City’s system within Jefferson Street, the municipal
sewer discharges through an 8” PVC pipe to an existing pump station at the intersection of Jefferson
Street and Crescent Avenue, which is owned and operated by Saratoga County.
The anticipated average daily sewer loading can be calculated by using Table B.3 of the NYSDEC
Design Standards for Intermediate-Sized Wastewater Treatment Systems, March 2014. As mandated
by Section 15-0314 of the Environmental Conservation Law, plumbing facilities in new and renovated
buildings must use water-saving fixtures and, therefore, the demand per Table B.3 is representative.
The breakdown of bedrooms per unit, used in the average daily domestic water demand calculation,
for the proposed development is summarized in Table 1 below.
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Table 1: Unit Breakdown by Bedroom
Floor Studio One-Bedroom Two-Bedroom Three-Bedroom Total Units
per Floor
North Apartment Building
1 7 10 8 0 25
2 6 12 11 0 29
3 6 12 11 0 29
4 6 12 11 0 29
Totals 25 46 41 0 112
South Apartment Building
1 5 10 8 0 23
2 4 12 11 0 27
3 4 12 11 0 27
4 4 12 11 0 27
Totals 17 46 41 0 104
The resulting anticipated average daily sewer loading for the proposed development is summarized in
Table 2 below.
Table 2: Anticipated Domestic Water Demand
Use No. Bedrooms Hydraulic Loading Average Day
Demands
North
Apartment
Building
Studio 25
110 GPD/bedroom
2,750 GPD
One-Bedroom 46 5,060 GPD
Two-Bedroom 82 9,020 GPD
Three-Bedroom 0 0 GPD
South
Apartment
Building
Studio 17 1,870 GPD
One-Bedroom 46 5,060 GPD
Two-Bedroom 82 9,020 GPD
Three-Bedroom 0 0 GPD
Average Day Total 32,780 GPD
Maximum Day (2x Average Day) 65,560 GPD
Peak Hourly (4x Average Day) 91 GPM
As demonstrated above, the anticipated increase in average daily sewer loading for the project is
estimated to be 32,780 GPD. Applying a factor of two (2) to determine the maximum daily demand
yields 65,560 GPD. Applying a factor of four (4) to determine the peak hourly sewer loading yields
131,120 GPD or 91 GPM.
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We are currently in the process of working with Saratoga County Sewer District 1 and NYSDEC on the
connection to the system and Crescent Avenue pump station. Once we have received sign off from
both agencies, we will forward their approval to you for your records. If you have any questions
regarding the above, please do not hesitate to contact this office at 518-266-7307 or by email at
sdrury@labellapc.com.
Respectfully submitted,
LaBella Associates
Sara Drury, EIT
Civil Engineer