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April 14, 2021 Lab ID : STK2134144-001 <br />Customer ID : 3-17919 <br />San Joaquin Co. Environmental Health Dep <br />Water Quality Division <br />Attn: Michael Kith <br />1868 East Hazelton Ave. <br />Stockton, CA 95205 <br />Description : Wellhead <br />Project : 22339 E. River Rd., Escalon <br />Sampled On : March 30, 2021-11:05 <br />Sampled By : Francisco Garcia Rui <br />Received On : March 30, 2021-11:55 <br />Matrix : Drinking Water <br />Sample Result - Inorganic <br />Constituent <br />Result <br />PQL <br />Units <br />MCL/AL <br />Sample Preparation <br />Method Date/ID <br />Sample Analysis <br />Method Date/ID <br />General Mineral <br />3442 Empresa Drive, Suite D <br />9415 W. Goshen Avenue <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />Total Hardness as CaCO3 <br />64.6 <br />2.5 <br />mg/L <br />TEL: (805)783-2940 <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Calcium <br />16 <br />1 <br />mg/L <br />CA ELAP Certification No. 1563 CA ELAP Certification No. 2670 <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Magnesium <br />6 <br />1 <br />mg/L <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Potassium <br />5 <br />1 <br />mg/L <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Sodium <br />26 <br />1 <br />mg/L <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Total Cations <br />2.6 <br />--- <br />meq/L <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Aron <br />0.2 <br />0.1 <br />mg/1L <br />200.7 04/01/21:203518 <br />700.7 04/01/21:204805 <br />Copper <br />ND <br />10 <br />ug/L <br />10002 <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Iron <br />ND <br />30 <br />ug/L <br />3002 <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Manganese <br />ND <br />10 <br />ug/L <br />502 <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Zinc <br />ND <br />20 <br />ug/L <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />SAR <br />1.4 <br />0.1 <br />-- <br />200.7 04/01/21:203518 <br />200.7 04/01/21:204805 <br />Total Alkalinity (as <br />CaCO3) <br />90 <br />10 <br />mg/L <br />2320B 04104/21:203577 <br />2320B 04/04/21:204922 <br />Hydroxide as OH <br />ND <br />10 <br />mg/L <br />2320B 04/04/21:203577 <br />2320B 04/04/21:204922 <br />Carbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320B 04/04/21:203577 <br />2320E 04/04/21:204922 <br />Bicarbonate as HCO3 <br />110 <br />10 <br />mg/L <br />2320B 04/04/21:203577 <br />2320E 04/04/21:204922 <br />Sulfate <br />12.6 <br />0.5 <br />mg/L <br />5002 <br />300.0 03/31/21:203423 <br />300.0 03/31/21:204837 <br />Chloride <br />9 <br />1 <br />mg/L <br />5002 <br />300.0 03/31/21:203423 <br />300.0 03/31/21:204837 <br />Nitrate as NO3 <br />13.1 <br />0.4 <br />mg/L <br />45 <br />300.0 03/31/21:203423 <br />300.0 03/31/21:204837 <br />Nitrite as N <br />ND <br />0.2 <br />mg/L <br />1 <br />300.0 03/31/21:203423 <br />300.0 03/31/21:204837 <br />Nitrate + Nitrite as N <br />3.0 <br />0.1 <br />mg/L <br />10 <br />300.0 03/31/21:203423 <br />300.0 03/31/21:204837 <br />Fluoride <br />0.1 <br />0.1 <br />mg/L <br />2 <br />300.0 03/31/21:203423 <br />300.0 03/31/21:204837 <br />otal Anions <br />2.5 <br />--- <br />meq/]L <br />23208 04/04/21:203577 <br />2320B 04/04/21:204922 <br />H (Field) <br />7.6 <br />-- <br />units <br />4500-H B 03130/21:203659 <br />03/30/21:204954 <br />Specific Conductance <br />265 <br />1 <br />umhos/cm <br />16002 <br />2510E 04106/21:203644 <br />2510E 04/06/21:204947 <br />Total Dissolved Solids <br />210 <br />20 <br />mg/L <br />10002 <br />2540CE 04/01/21:203492 <br />25400 04/02/21:204820 <br />MBAS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />5540C 03/31/21:203866 <br />5540C 03/31/21:205150 <br />Aggressiveness Index <br />11.2 <br />1 <br />-- <br />4500-H B 03/30/21:203659 <br />03/30/21:204954 <br />Langelier Index (20°C) <br />-0.7 <br />1 <br />-- <br />4500-H B 03/30/21:203659 <br />03/30/21:204954 <br />Nitrate Nitrogen <br />3.0 <br />0.1 <br />mg/L <br />10 <br />300.0 03/31/21:203423 <br />1 300.0 03/31/21:204837 <br />NU=Non-Uetected. FQL--Practical Quantitation Limit. * FQL adjusted for dilution. <br />MCL = Maximum Contamination Level. 2 - Secondary Standard. 3 - CDPH Notification Level. AL = Regulatory Action Level. <br />Page 3 of 9 <br />Corporate Offices & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />853 Corporation Street <br />2500 Stagecoach Road <br />563 E. Undo Avenue <br />3442 Empresa Drive, Suite D <br />9415 W. Goshen Avenue <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />Visalia, CA 93291 <br />TEL: (805)392-2000 <br />TEL: (209)942-0182 <br />TEL: (530)343-5818 <br />TEL: (805)783-2940 <br />TEL: (559)734-9473 <br />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 FAX: (209)942-0423 <br />FAX: (530)343-3807 <br />FAX: (805)783-2912 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 1573 <br />CA ELAP Certification No. 1563 CA ELAP Certification No. 2670 <br />CA ELAP Certification No. 2775 <br />CA ELAP Certification No. 2810 <br />