14 CAR pt. 21, Appendix B. Quantities of Wastewater Flow for Various Types of Establishments

Appendix B QUANTITIES OF WASTEWATER FLOW FOR VARIOUS TYPES OF ESTABLISHMENTS ESTABLISHMENT TYPE GALLONS PER DAY Airports, Bus Terminals, Train Stations Per passenger 5 Add per employee per 8-hour shift 15 Barber & Beauty Shops (per chair) 100 Bowling Alleys Toilet wastes per lane 100 For food service, add Food Service usage below Camps Campground with central comfort stations per camper 35 Day camps (no meals served) per camper w/ food service, add Food Service usage below 15 Churches Per seat/no food service 5 For food service, add Food Service usage below For daycares, add school usage below Grocery Stores Per 100 square feet of floor space 5 Add per 100 square feet of deli floor space 50 Add per 100 square feet of bakery floor space 50 Add per 100 square feet of meat market floor space 100 Country Clubs Per resident member (see Food Service usage below) 25 Per non-resident member 10 Dentists Offices Per practitioner 200 Add per employee per 8-hour shift 15 Doctors Office Per practitioner 200 Add per employee per 8-hour shift 15 Factories (exclusive of industrial waste) Gallons per employee per 8-hour shift No showers provided 15 Showers provided 35 Hospitals Per bed space 200 For food service excluding patients, add restaurant Food Service usage below Hotels & Motels Regular per room 150 Resort hotels & cottages 75 Mobile Home Parks per single wide mobile home space 300 per double wide mobile home space 450 Nursing Homes, Rest Homes, Adult Congregate Living Facilities Per bed 100 Add for food service 65 Office Buildings (per employee per 8-hour shift) 15 Parks, Public Picnic Toilets only per person 5 With bath house, showers, & toilets per person 10 Recreation Vehicle Park* Recreational vehicle space for overnight stay, without water & sewer hookup per vehicle space Recreational vehicle space for overnight stay, With water & without sewer hookup per vehicle space 50 75 Recreational vehicle space for overnight stay, with water & sewer hookup per vehicle space Recreation vehicle space with water and sewer hookup per vehicle space with effluent engineered to be compliant with wastewater strength reduction. 120 60 Food Service Per day per seat 40 Using single service articles only per seat 25 Bar and cocktail lounge per seat 30 Carry out only Per meal served without public restrooms 5 Per meal served with public restrooms 10 Add per employee per 8-hour shift 15 Residences Single or multiple family per dwelling unit 1 bedroom 150 2 bedrooms 270 3 bedrooms 370 4 bedrooms 450 For each additional bedroom add 50 Rooming houses per occupant space 75 Schools (per student) Day schools & day cares 15 Add for food service 5 Add for day school workers 20 Boarding schools 75 Stadiums, Race Tracks, Ball Parks (per seat) 5 Swimming Pools and Bathhouses (per patron) 10 Theaters (per seat) Indoor, movies/auditorium 5 FOOTNOTES: The estimated flows for residential systems assume a maximum occupancy of 2 persons per bedroom. Where residential care facilities (non-institutional) will house more than 2 persons in any bedroom, estimated flows are to be increased by 75 gallons per each additional occupant. Wastewater from food service operations is high strength wastewater in nature and may require special system sizing and treatment/disposal considerations. For food service operations, kitchen wastewater flows are normally to be calculated at 66% of the total wastewater flow. Wastewater flows should include estimated flow from drains from all drink dispensers including soda, tea, coffee, juice, and ice cream. Systems serving high volume establishments, such as fast food restaurants, convenience stores, and service stations require special sizing consideration due to above average wastewater volume expected from restroom facilities. Residential Strength Wastewater as the primary sewage effluent from a septic tank must not exceed the following parameters: Five-Day Biochemical Oxygen Demand (BOD5) of 300 mg/L; Total Suspended Solids (TSS) of 300 mg/L; and Fats, Oil and Grease of 25 mg/L. Other contaminants may also be present in the wastewater; however, they shall not exceed the concentrations or quantities normally found in residential sewage.