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Source of <br />sewage <br />YMCA/YWCA <br />Country Clubs <br />No meals <br />Meal, & Showers <br />Res , ent <br />Parks/Swimming Pools <br />Picnic Parks <br />with toilet only <br />Movie Theaters <br />Drive -In Theaters <br />Skating Pink/Dance Hall <br />Bowling Alley <br />Transportation <br />Airport, Bus or <br />Rail Depot <br />Auto Service Station <br />Gallons per day per unit <br />Unit Average Maximum <br />Member 33 33 <br />Member <br />22 <br />22 <br />Member <br />105 <br />136 <br />Member in <br />75 <br />100 <br />Residence <br />Guest <br />10 <br />13 <br />Guest <br />5 <br />10 <br />Guest <br />2.5 <br />4 <br />Space <br />3 <br />5 <br />Customer <br />7 <br />10 <br />Alley <br />133 <br />200 <br />Passenger <br />2.5 <br />4 <br />or <br />Square Foot <br />3.33 <br />6.5 <br />or <br />Public Restroom <br />500 <br />630 <br />Each vehicle served plus <br />11 <br />13 <br />add ►or each employee <br />13 <br />16 <br />or <br />Inside Square Foot <br />0.25 <br />0.6 <br />or <br />Public Restrooms <br />500 <br />630 <br />References: <br />Onsite Wastewater Treatment and Disposal Systems Design Manual, U. S. EPA, <br />October 1980. <br />Forecasting Municipal Water Requirements, Vols. I and I1, U. S. Department of <br />Commerce, September 1969. <br />Note on Water Use Data: <br />Figures in the "average" column designate an average drily sewage flow and <br />can be used for sizing the soil treatment unit. Values in the "maximum" <br />column are the average of peak flow rates and should be used for sizing the <br />septic tank or tanks so that adequate detention volume is available on peak <br />flow days. <br />Remember that there figures are only estimates of average flow rates and tnat <br />each facility is different. While it is necessary to estimate the flow rate <br />fora new facility, a water meter should always be installed on any commercial, <br />industrial or recreational facility to measure the actual sewage flow dis- <br />charged into the sewage treatment system. <br />