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• In addition to the winery uses, the existing seven residences on the Site are considered for the nitrate loading; according to Delicato staff, a total of 20 bedrooms exist at the houses. Five of the residential parcels on the Site currently have only one house; a potential second unit dwelling of up to two bedrooms could be placed on each of these as well, for an addition of 10 bedrooms total. 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 (personal communication, January 6, 2017). The typical nitrate as N concentration of mixed-source, untreated domestic wastewater, 35 mg/L, is selected for the residences (Crites and Tchobanoglous, 1998). 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 On-Site Wastewater Disposal Standards which incorporate peak and surge flow factors. The estimates used in the On-Site Wastewater Disposal Standards may be greater than those discussed here. No contributions from crop irrigation or soil amendments are considered for the Hantzsche/Finnemore method. It is reasonably assumed that the irrigation and soil amendments would be applied at close to agronomic rates for a net balance of plant • irrigation and nutrients. No contribution from winery process water is considered; water generated by the winery is stored on-site in ponds and/or land-applied to the fields. These water uses are addressed by the Regional Board's Waste Discharge Requirements and Monitoring and Reporting Program; per Mr. Estrada, winery process water should be excluded from the nitrate loading analysis (personal communication, March 9, 2017). The maximum average daily flow for the Site was estimated to be 9,651.8 gallons per day (gpd). Through the use of a weighted average, the average concentration of all the different effluent flows and concentrations was determined to be 63.2 mg/L-N at 9,651.8 gallons per day. Please see the following tables: • LOGE 1714 Page 16