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SAN J 0 A Q U I N Environmental Health Department <br />ik COUNTY Jasjit Kang, REHS, Director <br />c4r 1P 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 />Melissa Nissim, REHS <br />Steven Shih, REHS <br />July 19, 2021 <br />LiveOak GeoEnvironmental <br />Abby Racco <br />407 W. Oak Street <br />Lodi, CA 95240 <br />RE: Soil Suitability/Nitrate Loading Study <br />8888 W. Pine Street, Thornton <br />APN 001-200-20, SR0083938, <br />The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br />Loading (SSNL) Study, dated July 7, 2021 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 from the proposed three- <br />bedroom modular home. <br />Based on the information provided, the EHD can make the following findings: <br />The Soil Suitability/Nitrate Loading Study supports the suitability for standard OWTS usage for the <br />proposed development project on the above-mentioned parcel, pursuant to San Joaquin County <br />Ordinance Code Title 9, Section 9-1105.2(d). <br />2. Percolation test conducted on July 1, 2021 yield percolation rate of 1.98 minutes/inch. At this rate, a <br />20 -foot soil separation shall be required between bottom of leach field and groundwater for future septic <br />system. Groundwater at the site was encountered at 10.33' below ground surface (San Joaquin County <br />Onsite Wastewater Treatment Standard table 1.10.2.) <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 />AShih, REHS <br />Program Coordinator <br />c: Carol Pinnell -5764 W. Kingdon Rd, Thornton, CA 95686 <br />1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-3420 1 F 209 464-0138 1 www.sjgov.org/ehd <br />