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SAN JOAQUIN Environmental Health Department <br />COUNTY Kasey Foley, REHS, Interim Director <br />Greatness grows here. PROGRAM COORDINATORS <br />Robert McClellon, REHS <br />Jeff Carruesco, REHS, RDI <br />Willy Ng, REHS <br />Muniappa Naidu, REHS <br />Michael Kith, REHS <br />Melissa Nissim, REHS <br />November 25, 2019 <br />Ahmed Hussein <br />Navu Farms, Inc. <br />232 San Marco Ave <br />San Bruno, Ca 94066 <br />RE: Soil Suitability/Nitrate Loading Study <br />7300 West Delta Avenue, Tracy <br />APN 213-020-38 and 213-020-41, PA -1800316, SR0081147 <br />Questa Engineering Corp reviewed the Soil Suitability/Nitrate Loading (SSNL) Study and the engineered <br />OWTS design, dated September 6, 2019, and the response, dated November 20, 2019, for the Environmental <br />Health Department (EHD). <br />The SSNL Study was prepared to determine the suitability of the above noted parcel for onsite wastewater <br />treatment system (OWTS) usage and the potential impact of nitrate to groundwater for a development project <br />at above noted location. The development project includes a 4,000 square foot agricultural building and <br />slaughterhouse, a 6,000 square foot chicken enclosure, 3 employees and 2 customers operating 2 days per <br />week plus holidays for the above noted location. <br />Based on the information provided, the EHD can make the following findings: <br />1. The SSNL Study supports the suitability for the OWTS usage with the following conditions: <br />a. The engineered system, dated September 6, 2019, has been reviewed and accepted. <br />b. Annual permit is required. Fee for annual operating permit is due at time of OWTS permit <br />application. <br />c. To monitor the effectiveness of the engineered system, which is designed to mitigate the <br />requirement for minimum soil depth from the bottom of the dispersal system to the <br />groundwater, quarterly sampling of the groundwater for nitrate near dispersal field is required. <br />The first sampling shall be done six (6) months after the OWTS installation. Sampling results <br />shall be submitted to EHD for review. The EHD may reduce the sampling frequency after one <br />year of sampling. <br />d. Sampling port shall be installed under EHD permit and inspection. <br />e. The comments and recommendations resulting from the review are attached for your <br />consideration. <br />2. According to EHD records, the existing well was constructed in 2012 for agricultural use and is not a <br />suitable source for the potable water supply for the new development. A potable water supply that <br />can provide a consistent source of safe and clean water adequate for human consumption, cooking, <br />and sanitary purposes for the proposed development project needs to be established prior to the <br />issuance of building permits (2016 CA Plumbing Code, Section 601.2). <br />1868 E. Hazelton Avenue � Stockton, California 95205 � T 209 468-3420 � F 209 464-0138 � vvww.sjgov.org/ehd <br />