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OU '" z SAN JOAQUIN <br />A' <br />—COUNTY - <br />4 i Ise <br />OUNTY4iIse Greatness grows here. <br />March 11, 2022 <br />Justin Parker <br />25280 N Graham Rd <br />Acampo CA 95220 <br />RE: Soil Suitability/Nitrate Loading Study <br />25280 N Graham Rd, Acampo CA 95220 <br />APN 007-250-40, SR0084963 <br />Environmental Health Department <br />Jasjit Kang, REHS, Director <br />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 />Michelle Henry, REHS <br />The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br />Loading (SSNL) Study, dated March 7, 2022 for the above noted location, and has the following comments <br />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 />new home site. <br />Based on the information provided, the EHD can make the following findings, <br />a. The Percolation tests conducted on February 8, 2022 yielded a percolation rate of 16.67 min/in. <br />At this rate, a minimum 8 feet of soil separation is required between bottom of the dispersal field <br />and the groundwater. The SSNL reports a historic groundwater level of 137 to 160 feet below <br />surface grade. (San Joaquin County OWTS Standard Table 1.10.2). <br />b. The OWTS and its 100% replacement areas shall meet all required minimum setbacks stated in <br />San Joaquin County (OWTS) Standard and Well Standard. <br />If you have any questions please contact Francisco Garcia Ruiz, Environmental Health Specialist, at <br />fgarciaruiz@sjgov.org or (209) 616-3032. <br />Steven Shih, REHS <br />Program Coordinator <br />c: Live Oak GeoEnviron mental <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 />