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UNy <br /> SANsd0AQUIN Environmental Health Department <br /> COUNTY <br /> Wayne Fox, REHS, Interim Director <br /> Foa`'�P Greatness grows here. PROGRAM COORDINATORS <br /> Robert McClellon, REHS <br /> Jeff Carruesco, REHS, RDI <br /> ORIGINAL Willy Ng, REHS <br /> Muniappa Naidu, REHS <br /> Michael Kith,REHS <br /> Melissa Nissim, REHS <br /> August 11, 2020 <br /> Chesney Consulting SCANNED <br /> P.O. Box 3794 <br /> Turlock, California 95381 <br /> RE: Onsite Wastewater Treatment System Design <br /> 27420 South Walnut Court, Tracy <br /> APN: 248-241-21, SR0082187 <br /> The San Joaquin County Environmental Health Department (EHD) has received and reviewed the <br /> Onsite Wastewater Treatment System (OWTS) Design, dated August 6, 2020, for the above noted <br /> location. The OWTS is engineer-designed using pressure distribution system to mitigate the <br /> potential long term impact of Nitrate-Nitrogen on groundwater for a proposed second unit dwelling <br /> residence on a 1.49 acres lot. The engineer-designed system is approved with following conditions: <br /> 1. The size of the filter bed is determined by multiplying the required length of leach line by three <br /> (3) in sandy soils and four (4) in clay soils, not based on perc rate obtained. <br /> 2. In nitrate loading study, the 200 gpd for a three-bedroom second unit dwelling is used to <br /> determine the potential long term impact of Nitrate. It is not to be used for septic system <br /> design. According to San Joaquin County Local Agency Management Program (LAMP), the <br /> septic system is designed based on 150 gpd per bedroom. <br /> 3. The engineer on record shall determine the volume, the frequency and the duration of dosing. <br /> The operational parameters for the control panel shall be programmed accordingly. <br /> 4. All equipment shall be maintained in accordance with manufacturer's recommendation. <br /> 5. The system shall have audible and visual alarm. <br /> 6. Obtain engineer designed system permit prior installation. <br /> If you have any questions please contact Michael Kith, Program Coordinator, at mkith@sjgov.org or <br /> (209) 468-3444. <br /> Mi hael Kith, REHS <br /> Program Coordinator <br /> C: Dennis Souza (27420 South Walnut Court, Tracy, Ca 95304) <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 />