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November 12, 2025 <br />Lab No. : STK2556626-001 <br />San Joaquin Co. Environmental Health Dep Customer No.: 3017919 <br />Description :Well Head Matrix : Drinking Water <br />Project :12757 E Whitehouse Road Sampled On : October 27, 2025 at 14:11 <br />Stockton/WP2500952 <br />Drinking Water Interpretations <br />Summary: Your water was acceptable for all items tested on this sample report. Details are presented below: <br />Constituent <br />Result <br />Units <br />MCL <br />Result Compared <br />to MCL <br />Inorganic - Primary <br />Less Than or Equal <br />Exceeded <br />Fluoride <br />0.1 <br />mg/L <br />2 <br />PASS <br />Nitrate + Nitrite as N <br />0.8 <br />mg/L <br />10 <br />PASS <br />Nitrate as NO3 <br />3.3 <br />mg/L <br />45 <br />PASS <br />Nitrate Nitrogen <br />0.8 <br />mg/L <br />10 <br />PASS <br />Nitrite as N <br />ND <br />mg/L <br />1 <br />PASS <br />Zinc <br />40 <br />u /L <br />5000 <br />PASS <br />Inorganic - Secondary <br />Less Than or Equal <br />Exceeded <br />Chloride <br />6 <br />mg/L <br />500 <br />PASS <br />Copper <br />ND <br />ug/L <br />1000 <br />PASS <br />Iron <br />ND <br />ug/L <br />300 <br />PASS <br />Manganese <br />ND <br />ug/L <br />50 <br />PASS <br />Specific Conductance <br />221 <br />umhos/cm <br />1600 <br />PASS <br />Sulfate <br />5.0 <br />mg/L <br />500 <br />PASS <br />Total Dissolved Solids <br />190 <br />mg/L <br />1000 <br />PASS <br />Other <br />Less Than or Equal <br />Exceeded <br />Copper <br />ND <br />ug/L <br />1300** <br />PASS <br />Drinking Water Interpretations without MCL <br />Drinking Water Interpretations without MCL <br />ND=Non-Detect <br />Definitions <br />MCL The maximum level at which a constituent may be present and be considered acceptable for potability or aesthetics. <br />Primary Items listed as primary are regulated because of health concerns. If there is a failure for a primary constituent <br />treatment is normally required. <br />Section: Drinldng Water Interpretations Page 4 of 8 Page 4 of 8 <br />Corporate Offices & Laboratory Office & Laboratory Office & Laboratory <br />853 Corporation Street 2500 Stagecoach Road 563 E. Undo Avenue <br />Santa Paula, CA 93060 Stockton, CA 95215 Chico, CA 95926 <br />TEL: (805)392-2000 TEL: (209)942-0182 TEL: (530)343-5818 <br />CA ELAP Certification No. 1573 CA ELAP Certification No. 1563 CA ELAP Certification No. 2670 <br />Office & Laboratory <br />3442 Empresa Drive, Suite D <br />San Luis Obispo, CA 93401 <br />TEL: (805)783-2940 <br />CA ELAP Certification No. 2775 <br />Office & Laboratory <br />9411 W. Goshen Avenue <br />Visalia, CA 93291 <br />TEL: (559)734-9473 <br />CA ELAP Certification No. 2810 <br />