Resolutions-1997-021

8.04 DESIGN FLOWS AND CAPACITY A. The peak wet weather Design Flows for various land usage are as follows ** adjust the peaking factor for communities less than 10,000: 1. Single Family Dwellings (100 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) Assume 3.5 people/home = 250 gpcd + infiltration 2. Mobile Homes (50 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) Assume 2.5 people/home = 125 gpcd + infiltration 3. Multi Family Dwellings (75 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) Assume 1.5 people/bedroom = 187 gpcd + infiltration 4. Motels and Hotels (50 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) Assume 1.5 people/room = 125 gpcd + infiltration 5. Schools, without cafeteria or shower (10 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) = 25 gpcd + infiltration 6. Schools, with cafeteria or shower (20 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) = 50 gpcd + infiltration 7. Office Buildings (10 gal/cap/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) = 25 gpcd + infiltration 8. Light Industrial (14,000 gal/acre/day) x 2.5 (peak factor) + 1200 gal/acre day (infiltration) = 36,200 gpad gpcd = gallons per capita per day gpad = gallons per acre per day ** The design flows shown above may be adjusted, as approved by the City Engineer, based on unique characteristics of the proposed development of upon presentation of existing flow data. B. If a proposed sewer is to serve a predominantly wet area or an area prone to excessive infiltration and inflow, special design information should be obtained from the City Engineer. If no information is available, the designer should use a minimum of 1000 gpcd for infiltration.