The size and grade of each public sewer must be such as to provide at all times sufficient capacity for peak flow rates of discharge. In order to establish estimates of sanitary sewage at peak flow, each applicant for a building permit shall submit plans of intended construction and such information as the City Engineer may require on printed forms provided for the purpose. The following table is established as the peak flows for the various occupancies and shall be used as a basis for computing the discharge rate to the public sanitary sewer.
Occupancy | Peak Flow |
|---|---|
Apartment or Multiple Dwelling | 600 gal./day/dwelling unit |
Assembly Areas | 15 gal./day/person |
Auditorium | 15 gal./day/seat |
Automobile Wash | |
Regular | 86,400 gal./day/wash lane |
Coin Operated | 2,500 gal./day/stall |
Bar and Cocktail Lounges | 60 gal./day/seat |
Hospitals | 1,500 gal./day/bed |
Hotels | 600 gal./day/room |
Ice Plant | 1,200 gal./day/1,000 sq. ft. of floor area |
Industry, Light | 600 gal./day/1,000 sq. ft. of floor area |
(No water processes) | |
Laundry, Automatic (Public) | 225 gal./day/machine |
Medical Office | 900 gal./day/1,000 sq. ft. of floor area |
Mobile Homes and/or | |
Trailer Courts | 600 gal./day/unit |
Motels | 600 gal./day/unit |
Office | 600 gal./day/1,000 sq. ft. of floor area |
Restaurant | 150 gal./day/seat |
Schools | |
Elementary | 27 gal./day/capita |
Other | 75 gal./day/capita |
Single Family Dwelling | 600 gal./day/dwelling unit |
Stand or Drive-In for Sale of Lunches, Ice Cream, Beverages and Similar Items | 900 gal./day/1,000 sq. ft. of floor area |
Storage Garages and Warehouses | 75 gal./day/1,000 sq. ft. of floor area |
Stores, Commercial and Display | 300 gal./day/1,000 sq. ft. of floor area |
Any occupancy not contained within the aforementioned classification shall be rated by the City Engineer at a peak flow based upon any aforementioned classified occupancy it most nearly resembles. Until the City Council, based upon further engineering studies, determines excessive peak flow discharge for single family residential property, all single family residential property shall be classified at 600 gallons per day per dwelling unit, provided, however, any single family classification, having in addition to a single family use on each 5,000 square feet of lot area an accessory use discharging sewage to the public sewer, shall be classified for the purpose of this Chapter as a multiple dwelling.
The peak flow to the sanitary sewer for a building containing mixed occupancies shall be determined by adding the peak flow characteristics of the various occupancies as set forth in the above table.