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In addition to the residence, the existing winery uses are considered for the nitrate loading calculation. According to Mr. Violante, the employees of the winery will all live on-site; as such, they are omitted from the calculation. Mr. Violante stated that the winery is open to customers Saturday and Sunday only; approximately 20 customers per day are anticipated. Mr. Violante plans to discontinue special events at the winery; nevertheless, because they are included in the current Site Improvement Plan (PA- 14000160), the special events are included in this calculation. According to Mr. Violante, the events take place outdoors only, customers can make use of the indoor restrooms or outdoor portable toilet. A maximum of 24 events are allowed per year, with up to 100 customers present per event (personal communication, April 14 and 27, 2020). This value correlates with the 20 marketing events allowed under PA-1400160, as well as the four special events discussed in Chesney Consulting's 2012 revision to the 2006 Nitrate Loading Study Soil Suitability Study. Crites and Tchobanoglous (1998) indicate that 3 gallons is typical for a bar customer; this rate was used for the winery customers (Crites and Tchobanoglous, 1998). The nitrate as nitrogen (N) concentration of the customer use is estimated to be 85 mg/L (US EPA, 1980). 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. 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 for the nitrate loading calculation. Mr. Violante indicated that winery process water is collected and land- applied to the agricultural portion of the Site (personal communication, April 14, 2020). This discharge is conducted under the oversight of the California Regional Water Quality Control Board. The maximum average daily flow for the Site was estimated to be 386.8 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 39.8 mg/L-N at 386.8 gallons per day. Please see the following tables: LOGE 20-19 Page 12