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/0 NjP��cp.. <br /> S A N._40 A 0 U I N Environmental Health Department <br /> COUNTY <br /> Jasjit Kang, RENS, Director <br /> ` gtiFoa��P Greatness grows here. Muniappa Naidu,REHS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Jeff Carruesco, RENS,RDI <br /> Willy Ng,REHS <br /> Steven Shih, REHS <br /> Elena Manzo, REHS <br /> Natalia Subbotnikova, REHS <br /> February 9, 2026 <br /> Don Chesney <br /> Chesney Engineering Inc. <br /> P.O. BOX 3794 <br /> Turlock, CA 95381 <br /> RE: Soil Suitability and Nitrate Loading Study & Onsite Wastewater Treatment System (OWTS) <br /> Design and Operational Parameters <br /> 3732 N. Newton Road, Stockton <br /> SU-2601102, APN: 132-060-16 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability and <br /> Nitrate Loading (SSNL) Study and OWTS Design and Operational Parameters dated January 27, 2026, <br /> and submitted January 29, 2026, and has the following comments for your consideration. <br /> The SSNL was prepared to determine the suitability for onsite wastewater treatment system (OWTS) <br /> usage and the potential long-term impact of nitrate to groundwater from the proposed new Sharks <br /> Holding, LLC Truck Terminal. The parcel size is 4.85 acres. <br /> 1. The SSNL reports a nitrate-loading estimate for the proposed Truck Terminal OWTS of 1.7 milligrams <br /> per Liter (mg/L) of NO3-N (Nitrate as Nitrogen); the maximum contamination level for NO3-N in <br /> groundwater is 10.0 (mg/L) set by the Central Valley Regional Water Quality Control Board. The <br /> septic system construction shall follow the San Joaquin County OWTS where applicable. (SJC OWTS <br /> Standard 7.1). <br /> 2. The Percolation tests conducted on December 15, 2025, yielded a percolation rate of 83.3 MPI for <br /> the 42-inch percolation test, 35.7 MPI for the 130-inch percolation test, and 41.7 MPI for the 300-inch <br /> percolation test. At this rate, a minimum of 8 feet of soil separation is required between the bottom of <br /> the dispersal field and the groundwater as mitigated by the proposed engineered septic system. The <br /> SSNL reports groundwater level at about 50 to 60 feet below surface grade. (San Joaquin County <br /> OWTS Standard Table 1.10.2). <br /> 3. Prior to the new septic installation, the existing AT&T fiber optic cable will be relocated at the time of <br /> construction and 100 feet away from the septic system's 100% replacement area as stated in the <br /> report. <br /> 1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-34201 F 209 468-3877 1 www.sjgov.org/ehd <br />