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HomeMy WebLinkAbout20240465 1 Driscoll Rd SUP Modification Sanitary Use DESIGN CALCULATIONS (Revised July 17, 2024) Design Flow 1st Floor Apartments (4 Units) Required daily design rate = 110 gpd/bedroom 12 bedrooms Required design flow = 1,320 gpd 2nd Floor Apartments (7 Units) Required daily design rate = 110 gpd/bedroom 11 bedrooms Required design flow = 1,210 gpd Just Cats Required daily design rate = Required design flow = Total Design Flow= 2,730 GPD Eljen System Design: Using 25 bedrooms for initial design Design Flow Provided: 2,750 GPD Design Module Length: 4.0 feet Percolation Design Rate: 1”/7 minutes Application Rate: 0.8 GPD/SF Min. Bed Area:550+20(138)=3,310SF Min. Modules: 20+20(5)=120 Modules Rows Provided: 6@80L.F Modules per row: 20 modules Min. Bed width: 3,310/120 =27.6± feet Provided area: 40’ x 85’ = 3,400 SF 200 gpd/Vet 1 Vet 200 gpd Outlet Pipe Avg. Flow = 1.9± gpm Peak Flow = 7.6± gpm Size: 4” Diameter Material: PVC SCH40 Slope: 2% Length: 15 feet Capacity = 157 gpm > 7.6± gpm