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customers each day. The Roddans anticipate that all the customers will eat meals prepared at the kitchen on-site; the kitchen will not have a garbage disposal. Up to 14 employees working eight-hour shifts and two parking attendants working four-hour shifts will be present on the days the facility is open. The employees will not eat meals prepared on-site. The estimated sewage flow rates for various uses are available from a number of references. The uses presented below were guided by the San Joaquin County On-Site Wastewater Treatment Systems Standards (2017), Crites and Tchobanoglous (1998), and US EPA (1980). Crites and Tchobanoglous indicate that 13 gallons per day for each employee is typical for an office worker, and 9 gallons is typical for a customer at a conventional restaurant; these rates were used for the employees and customers of the facility. Crites and Tchobanoglous (1998) list a typical flow rate of 50 to 70 gallons per person per day for an individual residence. The San Joaquin County Enviromental Health Department has indicated that maximum flow and double occupancy within each bedroom should be considered for the nitrate loading assessment; as a result, a value of '140 gallons per bedroom per day has been selected for the existing house (personal communication, January 6, 2017). The estimated flow values discussed here should not be used for the design and sizing of the septic system. The design and sizing of the septic system should utilize the San Joaquin County Environmental Health Department On-Site Wastewater Treatment Systems Standards which incorporate peak and surge flow factors. The estimates used in the On-Site Wastewater Treatment Systems Standards may be greater than those discussed here. The nitrate as nitrogen (N) concentration of the employee and customer use is estimated to be 85 mg/L (US EPA, 1980). A typical residential concentration of 35 mg/L of nitrate as N was selected for the residence (Crites and Tchobanoglous, 1998). As shown in the tables below, the maximum average daily flow for the Site was estimated to be 720.1 gallons per day (gpd). Through the use of a weighted average, the average concentration of the different effluent flows and concentrations was determined to be 46.1 mg/L-N. LOGE 1908 Page 11