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West Seneca Sewer Report | Page 4 Three Bdrm Units:(22 units) x (3 bdrm/unit)x110gpd/bdrm=7,260 gpd Office Space: 4 Employees x 15 gpd = 60 gpd Total = 16,340 gpd Peak Hourly Flow (Sanitary): 16,340 gpd x Peak Factor Total Population=[(24x1)+(29x2)+(22x3)]x2 people per bedroom= =148x2= 296People (assume 2 people per bedroom)+4 office employees=300. P = 0.300 (in thousands) Peaking Factor = (18 + √P) / (4+√P) = (18+0.548)/(4+0.548)=4.08 Peak Sanitary Demand =16,340x 4.08 = 66,667 gpd 0.06667 MGD (0.10 CFS) Sanitary Demand Calculations: Node 1 – Average 16,340 gpd (0.016 MGD) Entire Site: 110-gal/d/unit x 1bdrmx24 units=2,640 gpd + 110-gal/d/unit x 2bdrmx29 units=6,380 gpd +110-gal/d/unitx3bdrmx22 units=7,260 gpd 4 employees x 15 gpd=60 gpd Site total= 16,340 gpd Ave. Total = 16,340 gpd (0.016 MGD) Assume 2 people per bedroom. 2 x 148 bedrooms = 296 people + 4 office employees = 300 people. P = 0.300 (in thousands) Peaking Factor = (18 + √P) / (4+√P) = 4.08 Peak Sanitary Demand = 16,340 x 4.08 = 66,667 gpd 0.06667 MGD (0.10 CFS) Node 2 – Average 16,340 gpd (0.016 MGD) Entire Site: 110-gal/d/unit x 1bdrmx24 units=2,640 gpd + 110-gal/d/unit x 2bdrmx29 units=6,380 gpd +110-gal/d/unitx3bdrmx22 units=7,260 gpd 4 employees x 15 gpd=60 gpd Site total= 16,340 gpd Ave. Total = 16,340 gpd (0.016 MGD) Assume 2 people per bedroom. 2 x 148 bedrooms = 296 people + 4 office employees = 300 people. P = 0.300 (in thousands) Peaking Factor = (18 + √P) / (4+√P) = 4.08 Peak Sanitary Demand = 16,340 x 4.08 = 66,667 gpd 0.06667 MGD (0.10 CFS) Node 3 – Average 16,340 gpd (0.016 MGD) Page 79 of 1493