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Home My WebLink About20260100 West Ave & Station Ln West Station LLC Special Use Permit Water/Sewer Letter ReportLANSINGENGINEERING.COM 2452 STATE ROUTE 9 SUITE 301 | MALTA, NY | 518-899-5243 February 3, 2026 Mark Pingel, Planning Board Chairman City Hall 474 Broadway Saratoga Springs, NY 12866 RE: Water/Sewer Letter Report – Faden – West Ave Site Plan Dear Mr. Pingel: The Faden – West Ave Site Plan project proposes a new four (4)-story mixed-use building containing retail space and 80 multifamily units with parking for residents, customers and employees, with a footprint of 22,956± sf. The development is located on the corner of West Avenue and Station Lane in the City of Saratoga Springs, New York. The project parcel encompasses approximately 2.00 acres, and the tax map identification number is 165.-2-76.2. This letter/report will describe the water use and wastewater generation for the proposed development. Public water service and sanitary sewer services are proposed to be provided by the City of Saratoga Springs Department of Public Works. WATER DEMANDS The water usage rates have been calculated for the 76 residential multifamily units based on the 10 State Standards of 100 gpdpc, with an anticipated population of 2.0 residents per unit. Water usage rates for the 6,134 sf of retail space is based on 0.1 gpd/sf (from the “New York State Design Standard for Intermediate Sized Wastewater Treatment Systems”). The Average Day, Max Day, and Max Hour Water usage rates for the site have been calculated to be 12,960 gpd, 21,384 gpd, and 40.50 gpm, respectively. A detailed outline of the water demand calculations are as follows: Retail Space: Retail = 6,134 sf x 0.1 gpd/sf = 614 gpd Water Demand Average Day with 20% water reduction for water saving fixtures: = 614 gpd x 80% = 492 gpd Multifamily Units: Population = (76 units) x (2.0 residents/unit) = 152 persons Design Average Daily Wastewater Flow = (152) x 100 gpcpd x 20% reduction for water saving measures pg. 2 = 15,200 gpd x 80% = 12,160 gpd Total = 492 gpd + 12,160 gpd = 12,652 gpd Water Demand Rates (Based on National Average) Average Day = 100% of average daily demand rate Max Day = 165% of average daily demand rate Max Hour = 450% of average daily demand rate Water Demand For Service Area Average Day = (100%) x (12,652 gpd) = 12,652 gpd = 8.79 gpm Max Day = (165%) x (12,652 gpd) = 20,876 gpd = 14.50 gpm Max Hour = (450%) x (12,652 gpd) = 56,934 gpd = 39.54 gpm The water service connection to the City of Saratoga Springs Public Works water system will provide the domestic and fire protection needs of the proposed development. The proposed building will have automatic sprinkler systems. The project proposes one 6” DIP connection into the existing 12” DIP water main located along the west side of West Avenue. The connection shall utilize a tapping sleeve and valve to prevent disruption to the water supply during construction. The proposed water system is shown in the attached plan set. WASTEWATER DEMANDS The wastewater generated by the proposed development has been calculated based on the separate uses for the building. Wastewater generated by the proposed retail development have been calculated based on 0.1 gpd per square foot (from the “New York State Design Standard for Intermediate Sized Wastewater Treatment Systems”). Wastewater generated by the residential development has been calculated based on the 10 State Standards of 100 gallons per capita per day (gpcpd) with an estimated population density of 2.0 residents per dwelling unit. The Average Daily Wastewater Flows and Peak Hour Wastewater Flows generated from the proposed development are 12,960 gpd and 37.62 gpm, respectively. A detailed outline of the wastewater flow calculations are as follows: West Ave – Site Plan – Development consists of approximately 6,134-sf of retail and 76 multifamily units. Retail Space: Proposed 6,134 sf Retail Space = (6,134 sf) x (0.1 gpd/sf) = 614 gpd Design Average Daily Wastewater Flow = Total Wastewater Flow with 20% reduction for water saving measures = 614 gpd x 80% = 492 gpd Equivalent Population = 200 gpd / 100 gpcpd = 5 people pg. 3 Multifamily Units: Population = (76 units) x (2.0 residents/unit) = 152 persons Design Average Daily Wastewater Flow = (152 persons) x 100gpcpd with 20% reduction for water saving measures = 15,200 gpd x 80% = 12,160 gpd Total Design Average Daily Wastewater Flow = 492 gpd + 12,160 gpd = 12,652 gpd Total Population = 5 + 152 = 157 persons Peak Hour Factor (P = population in thousands) = (18 + P1/2) = (18 + 0.1571/2) = 4.18 (4 + P1/2) (4 + 0.1571/2) PHF = 4.18 Cumulative Peak Hour Wastewater Flow = (Average Daily Wastewater Flow) x (Peak Hour Factor) = (12,652 gpd) x (4.18) = 52,885 gpd = 36.73 gpm (calculated design flow, required flow) Pipe Size Required – Based on Manning’s formula using an “n” value of 0.013 for PVC and using the cumulative peak hour waste hour flow calculated above (Calculated design capacity and velocity) Trial Pipe size = 6” Pipe Slope = 0.02 ft/ft minimum Full Velocity = 4.05fps Full Capacity = 0.80 cfs = 357.08 gpm 357 gpm (design capacity) > 36.73 gpm (required capacity) Therefore Use 6” Diameter Pipe for all Gravity Service Laterals Wastewater flows from the proposed development will be collected on site and conveyed via gravity piping to the existing public sewer main along Station Lane and ultimately to the existing pump station on the north side of Station Lane immediately adjacent to the project site. pg. 4 The existing pump station on Station Lane was previously identified to have capacity deficiencies. These deficiencies were outlined in the Engineer’s Report prepared by Bergmann Associates dated August 16, 2017 for the Station Park Project that was previously proposed to the west of the proposed Faden - West Ave project. This report identified four potential projects within the area that would contribute to the existing pump station and cause capacity issues. The four projects included the Station Park Project, Askew Apartments, Intrada Development and the Faden – West Ave project. At that time, the anticipated flows that were included within the Bergmann Associates report for the Faden – West Ave project were as follows: Average Daily Wastewater Flow = 18,393 gpd Cumulative Peak Hour Wastewater Flow = 52 gpm Flows currently proposed for the Faden – West Ave project are as follow: Average Daily Wastewater Flow = 12,652 gpd Cumulative Peak Hour Wastewater Flow = 36.73gpm 12,652 gpd (currently proposed) < 18,393 gpd (Bergmann Associates report) 36.73 gpm (currently proposed) < 52 gpm (Bergmann Associates report) The Bergmann Associates report proposed upgrades to the existing pump station to meet the anticipated increase in wastewater flows, with each project contributing to the cost of the upgrades based on their anticipated wastewater flow. The Station Park project did not advance while the remaining three projects continued. Most notably, the Intrada Development advanced through approvals and construction first. As a part of their approvals and construction, the Intrada development team (The Vechino Group) reevaluated the pump station improvements with the elimination of the Station Park project and completed the recommended improvements to the pump station. The Askew Apartments (now known as the Station Lane Apartments) have also been completed and provided payment of their portion of the pump station upgrades to The Vechino Group. The Faden – West Ave project developers are aware of the pump station improvements that were completed by The Vechino Group and have agreed to provide their portion of the pump station upgrade cost sharing plan upon the project being granted approval by the City of Saratoga Springs. Based on the above, it is expected that the existing and proposed sanitary system has adequate capacity to collect and convey the anticipated flow and that the project will not have an adverse impact on the existing system. The estimated water usage and wastewater flows for the Faden – West Ave Site Plan are within the available capacity of the water and wastewater systems in the area. The project applicant has agreed to participate and contribute to the local sanitary sewer improvements that will improve the existing systems. Therefore, it is expected that the connection of the water and sanitary systems will not have an adverse impact on the existing utilities.