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Cyc G� V A S \ sJ O A Q V I 1 <br />O` COUNTY Greatness grows here. <br />31 August 2022 <br />Rick Van Unen <br />PO BOX 839 <br />Ripon, CA 95366 <br />RE: Soil Suitability/Nitrate Loading Study <br />14250 Jack Tone Road, Manteca <br />APN: 20305029, SR0085665 <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 />Steven Shih, REHS <br />Michelle Henry, REHS <br />Elena Manzo, REHS <br />The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br />Loading Study (SSNL) dated 9 August 2022 for the above noted location and has the following comments for <br />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 nitrate loading impact to groundwater from the existing 3 - <br />bedroom home and the proposed industrial operation with 12 employees. <br />Based on the information provided the EHD can make the following findings: <br />a. Based on the information provided the EHD finds that the SSNL Study supports the suitability for <br />standard OWTS usage for the proposed development pursuant to San Joaquin County Ordinance <br />Code Title 9, Section 9-1105.2(d). <br />Percolation test conducted on 2 August 2022 yield percolation rate of 1.06 min/inch. At this rate a 20' <br />soil separation is required between bottom of dispersal field and the groundwater. Groundwater is <br />reported at 60-70 feet below grade. (San Joaquin County OWTS Standard Table 1.10.2). <br />c. Construction of an individual sewage disposal system(s) under permit and inspection by the <br />Environmental Health Department is required at the time of development based on the Soil Suitability <br />Study & Nitrate Loading Study findings (San Joaquin County Development Title, Section 9-1110.3 & <br />9-1110.4). <br />If you have any questions please contact Aaron Gooderham, Registered Environmental Health Specialist, <br />REHS, at agooderham@sjgov.org or (209) 616-3062. <br />Steven Shih, REHS <br />Program Coordinator <br />CC: Advanced Geo, Inc. <br />837 Shaw Road <br />Stockton, CA 95215 <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 />