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Mr. Sandi De Jong <br /> September 25,2003 <br /> Page 5 <br /> _ The waste water flow quantities per category are available from a number of references. The <br /> uses presented below were guided by the San Joaquin Sewage Standards (1996) and Crites and <br /> Tchobanoglous (1998). The daily average flow rates presented in references provide general <br /> guidance but often do not reflect a match is usage. Careful examination, professional judgement, <br /> and experience are necessary to select a reasonable flow rate estimate. The flow rates selected <br /> for the uses associated with this facility are presented in the following table. <br /> Table 2. <br /> Typical Quantity of Effluent for Various Sources. <br /> Category Total Use per Average Quantity per Person Average Daily Flow <br /> day <br /> Office Employees, 8 persons 13 gal/day/person 8 people/day It 13 <br /> 4 per shift,2 shifts,6 days (Crites and Tchobanoglous, 1998) gpd/person*6/7=89 <br /> per week <br /> Drive-up food window 200 cars 3 gal/day/vehicle served 200 cars/day';3 *6/7 <br /> (estimated) 514 <br /> Short Order Restaurant, 50 people 3 gal/day/person fcgi � 50 people/day <br /> walk-up food window (Crites and Tchobanoglous, 1998) 3gpd/person*6/7= 129 <br /> Average Daily Flow: 732 gallons per day I � <br /> Notes: —6/7 is a conversion factor for scaling a 6 day work week to a 7 day work week. <br /> —gpd is gallons per day. <br /> to Y$ <br /> The daily waste water quantity, averaged over a typical work week, is estimated to be 732 gallons <br /> per day. This figure is based on 200 drive up visits by cars and 50 people walking up to the <br /> window and eating on site. <br /> Our office recognizes that waste water generated from the site can potentially effect the required <br /> absorption area for the septic system and potential nitrate impact to ground water. Well water <br /> flow monitoring could be performed to determine waste water flow for the facility. <br /> 5-0 <br /> Oro <br /> r <br /> � <br /> 1 fit`' 1� 1" <br /> 17. 04 <br /> o <br /> \/ SSQL <br /> �J AA V <br />