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SAN�JOAQUIN Environmental Health Department <br /> / C O U N T Y Jasjit Kang, REHS, Director <br /> cgc�-Fa Greatness grows here. Muniappa Naidu,REHS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Robert McClellon, REHS <br /> Jeff Carruesco, REHS, RDI <br /> Willy Ng, REHS <br /> Michael Kith,REHS <br /> Melissa Nissim, REHS <br /> November 16, 2020 <br /> R I GINA L <br /> Mr. & Mrs. Matt &Angel Keenan <br /> 24320 S. Frederick Ave <br /> Ripon, CA 95366 <br /> RE: Soil Suitability/Nitrate Loading Study <br /> 24320 S. Frederick Ave, Ripon <br /> APN 257-260-11, 48, SR0082764 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br /> Loading (SSNL) Study, dated October 20, 2020 and submitted on October 21, 2020 for the above noted <br /> location, and has the following comments for your consideration. <br /> The SSNL was prepared to determine the suitability of the above noted parcel for onsite wastewater treatment <br /> system (OWTS) usage and the potential long-term impact of nitrate to groundwater for the following proposed <br /> project. <br /> 1. A three-bedroom modular home. <br /> Based on the information provided, the EHD can make the following findings: <br /> 1. Based on the information provided, the EHD finds that the SSNL Study supports the suitability for <br /> standard OWTS usage for future development on the proposed parcels, pursuant to San Joaquin <br /> County Ordinance Code Title 9, Section 9-1105.2(d). <br /> 2. In order to maintain 8' soil separation between bottom of leach field and groundwater, the leach field <br /> shall not be deeper than 24" and the septic tank should be installed with the top of the tank 4" above <br /> final grade. <br /> 3. The water sample data show the well being utilized for drinking water has an elevated level of nitrate <br /> nitrogen of 15.7 mg/L-N and may not be a suitable source for the potable water supply for new <br /> development. A potable water supply that can provide a consistent source of safe and clean water <br /> adequate for human consumption, cooking, and sanitary purposes for the proposed project prior to <br /> the issuance of building permits (2016 CA Plumbing Code, Section 601.2). <br /> If you have any questions please contact Naseem Ahmed, Senior Registered Environmental Health <br /> Specialist, at nahmed@sjgov.org or (209) 616-3018. <br /> 4c, <br /> Muniappa Naidu, REHS <br /> Assistant Director <br /> c: Chesney Consulting <br /> 1868 E. Hazelton Avenue I Stockton, California 952051 T 209 468-3420 1 F 209 464-0138 1 www.sjgov.org/ehd <br />