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2'0P� SANsJOAQUIN Environmental Health Department <br /> COUNTY Jasjit Kang, REHS, Director <br /> \ c�oav� Greatnessrows here. <br /> 9 Muniappa Naidu,RENS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Jeff Carruesco, REHS, RDI <br /> Willy Ng, REHS <br /> Steven Shih, REHS <br /> Elena Manzo, REHS <br /> June 14, 2023 ORIGINAL <br /> Abby Racco <br /> Live Oak Geo Environmental, Inc <br /> 407 W. Oak St. <br /> Lodi, CA 95240 <br /> RE: Soil Suitability/Nitrate Loading Study <br /> 17050 E. Lone Tree Rd, Escalon CA 95320 <br /> APN: 203-210-05, SR0086726 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br /> Loading (SSNL) Study, dated May 17, 2023 and has the following comments for your consideration. <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 long-term impact of nitrate to groundwater from the <br /> proposed hypothetical four and three bedroom residences. <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 the proposed development pursuant to San Joaquin County Ordinance <br /> Code Title 9, Section 9-604.010(d). <br /> 2. Percolation test conducted on April 17, 2023 yielded a percolation rate of 2.69 minutes/inch. At this <br /> rate, a 20' soil separation shall be required between bottom of dispersal field and groundwater <br /> pursuant to San Joaquin County Onsite Wastewater Treatment Standard table 1.10.2. Per SSNL <br /> Study, groundwater on site is between 75' to 85' feet below ground surface. <br /> 3. The OWTS and its 100% replacement areas shall meet all required minimum setbacks stated in San <br /> Joaquin County (OWTS) Standard and Well Standard. <br /> If you have any questions please contact Francisco Garcia Ruiz, Registered Environmental Health Specialist, <br /> at fgarciaruiz@sjgov.org or (209) 616-3032. <br /> Steven Shih, REHS <br /> Program Coordinator <br /> c: David & Sherrie Van Vilet- P.O Box 720, Ripon, CA 95366 <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 />