HomeMy WebLinkAbout20230032 Crescent & Jefferson Site Plan Water Demand Calculations
January 13, 2023
Deborah LaBreche, PE, Civil Engineer
City of Saratoga Springs
474 Broadway
Saratoga Springs, NY 12866
RE: Liberty at Saratoga – Domestic Water Demand
City of Saratoga Springs, Saratoga County, New York
LaBella Project #2224112
Dear Ms. LaBreche,
We are pleased to present you with the domestic water 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) 25,000+/- SF affordable workforce housing
buildings, comprised of 212 units, on an existing vacant parcel of land across Bunny Lake Drive from
the Saratoga Casino Hotel. A summary of the anticipated increase in water demand from the project
is presented below.
Water Conveyance System:
All domestic water for the proposed development will come from a new tapped connection made to
the existing 10-inch water main within Crescent Avenue, west of the Crescent Avenue/Bunny Lake
Drive intersection. The anticipated average daily water demand can be calculated by correlating
water supply to wastewater generation 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.
Table 1: Unit Breakdown by Bedroom
Floor Studio One-Bedroom Two-Bedroom Three-Bedroom Total Units
per Floor
North Apartment Building
1 5 10 11 0 26
2 5 11 11 1 28
3 5 11 11 1 28
4 5 11 11 1 28
Totals 20 43 44 3 110
South Apartment Building
1 3 10 11 0 24
2 3 11 11 1 26
3 3 11 11 1 26
4 3 11 11 1 26
Totals 12 43 44 3 102
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The resulting anticipated average daily domestic water demand 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 20
110 GPD/bedroom
2,200 GPD
One-Bedroom 43 4,730 GPD
Two-Bedroom 88 9,680 GPD
Three-Bedroom 9 990 GPD
South
Apartment
Building
Studio 12 1,320 GPD
One-Bedroom 43 4,730 GPD
Two-Bedroom 88 9,680 GPD
Three-Bedroom 9 990 GPD
Average Day Total 34,320 GPD
Maximum Day (2x Average Day) 68,640 GPD
Peak Hourly (4x Average Day) 95 GPM
As demonstrated above, the anticipated increase in average daily domestic water demand for the
project is estimated to be 34,320 GPD. Applying a factor of two (2) to determine the maximum daily
demand yields 68,640 GPD. Applying a factor of four (4) to determine the peak hourly domestic
water demand yields 137,280 GPD or 95 GPM.
In summary, it is anticipated that the proposed development of the Liberty at Saratoga affordable
workforce housing project will not adversely affect the City of Saratoga Springs municipal water
system. We are requesting that the City Engineer’s office verify that the municipal system can
accommodate the increase in demand in the form of a will serve letter. 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
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