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Table 3. Rainwater Nitrate Concentration <br />Date <br />Nitrate (mg/L-N) <br />5/17/2019 <br />0.4 <br />5/19/2019 <br />0.2 <br />3/16/20 <br />0.2 <br />5/18/20 <br />0.4 <br />1/27/21, 10:00 <br />0 (Non -detect) <br />1/27/21, 19:30 <br />0 (Non -detect) <br />1/29/21 <br />0.2 <br />2/11/21 <br />0 (Non -detect) <br />2/12/21 <br />0.1 <br />10/25/21 <br />0 (Non -detect) <br />Average <br />0.15 <br />Live Oak then averaged the concentrations of the ten samples, for a value of 0.15 mg/L- <br />N to represent the nitrate concentration of rain. <br />Because the San Joaquin County Environmental Health Department has requested that <br />local and recent data be utilized wherever possible, the concentration of the Lodi <br />rainwater been selected for use in the nitrate loading calculation. The latest sample <br />results have been included in Appendix 6. <br />Quantity and Quality of Domestic Wastewater <br />Parcel 1 <br />Mr. Marsili indicated that the existing rental home on Parcel 1 of the Site has two <br />bedrooms. Although a second septic system services the shop building, Mr. Marsili <br />indicated that no living space is located in the shop; he visits the shop approximately <br />once per week. For the purpose of this report, the shop is conservatively included as if <br />Mr. Marsili worked there one day per week, though in reality the shop restroom will be <br />used much less. <br />Crites and Tchobanoglous (1998) list a typical flow rate of 50 to 70 gallons per person <br />per day for an individual residence. In the past, San Joaquin County Environmental <br />LOGE 2150 Page 11 <br />