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SK-JOAQUIN <br /> 3 Environmental Health Department <br /> COUNTY <br /> Jasjit Kang, RENS, Director <br /> cgZjFoµc��� <br /> Greatness 9roWs here. Muniappa Naidu,REHS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Robert McClellon,REHS <br /> Jeff Carruesco, REHS, RDI <br /> Willy Ng, REHS <br /> ORIGINAL Michael Kith, REHS <br /> Melissa Nissim, REHS <br /> September 25, 2020 <br /> I Hsin Orchards, Inc <br /> Rachel Liu <br /> 122 W. Harney Lane <br /> Lodi, CA 95245 <br /> RE: Soil Suitability/Nitrate Loading Study <br /> 122 W. Harney Lane, Lodi <br /> APN 058-060-46, SR0082543 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br /> Loading (SSNL) Study, dated August 27, 2020 and submitted on September 2, 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 58,968 square foot greenhouse and the addition of two new ADA restroom. <br /> 2. The OWTS usage wastewater averages 535.7 gallons a day from the following usages resulting from <br /> 50 full time employees. <br /> Based on the information provided, the EHD can make the following findings: <br /> 1. The existing domestic water well shall be tested for nitrates and DBCP. Samples are to be taken by a <br /> third party and analyzed by a State-approved laboratory prior to issuance of building permit (San <br /> Joaquin County Development Title, Section 9-1115.7). <br /> 2. Average rainfall recharge data of 15.6 inches per year used for nitrate loading calculation is not <br /> acceptable. The study should provide documentations for the rainfall data and take evapotranspiration <br /> when calculating deep percolation values. Rainfall data shall be taken from CIMIS station close to the <br /> project site. <br /> 3. Submit an addendum to the EHD for the above-mentioned items and EHD will respond accordingly. <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 /> Muniappa Naidu, REHS <br /> Assistant Director <br /> c: Baez Consulting <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 />