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OP,pUIN <br /> 1 SANo4J0AQUIN Environmental Health Department <br /> (IT <br /> � COUNTY Jasjit Kang, REHS, Director <br /> Greatness grows here. Muniappa Naidu,REHS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Jeff Carruesco, REHS, RDI <br /> Willy Ng, REHS <br /> Steven Shih, REHS <br /> Elena Manzo,REHS <br /> Natalia Subbotnikova,REHS <br /> WELL WATER TEST RESULTS <br /> December 30, 2025 <br /> SHRYOCK, JAMES J JR TR ETAL <br /> 891 MANILA ROAD, <br /> LATHROP CA, 95330-8711 <br /> Location: 891 Manila Road, Lathrop CA 95330 <br /> Sampling Date: December 2, 2025 <br /> Record ID: WP2501139 <br /> The San Joaquin County Environmental Health Department (EHD) requires well sampling as part of the <br /> permitting process for any new or replacement domestic well. San Joaquin County Well Standards <br /> section 9-9.2.1* states "To determine quality of water produced by a new water well, it shall be sampled <br /> by the EHD for bacteriological and chemical analysis after development, the installation of the well pump, <br /> and disinfection." The cost of sampling was included with the well permit issuance. <br /> We have sampled your new well and have received your results. Your water sample was analyzed by <br /> FGL Stockton Laboratory, a state certified lab. <br /> The well water results have FAILED the bacteriological—Total Coliform and General Mineral established <br /> criteria. <br /> Contaminant Result MCL** <br /> TOTAL COLIFORM PRESENT ABSENT <br /> E. coli ABSENT ABSENT <br /> CHLORIDE 1000 m /L 500 m /L <br /> IRON 1160 /L 300 /L <br /> MANGANESE 670 /L 50 N /L <br /> SPECIFIC 3310 umhos/cm 1600 umhos/cm <br /> CONDUCTANCE <br /> TOTAL DISSOLVED 2350 mg/L 1000 mg/L <br /> SOLIDS <br /> The well water PASSED the criteria for the other analyses: bacteriological E. coli and Nitrates. <br /> For more information and possible health effects, please refer to the attachments along with the full <br /> analytical results. If you have any questions, you may contact Sastina Thammavongsa, Registered <br /> Environmental Health Specialist, at (209) 616-3068 or email sthammavongsa@sjgov.org. <br /> 1868 E. Hazelton Avenue I Stockton, California 952051 T 209 468-3420 1 F 209 468-3877 1 www.sjgov.org/ehd <br />