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June 23, 2021 Lab ID : STK2137438-001 <br />Customer ID :3-17919 <br />San Joaquin Co. Environmental Health Dep <br />Water Quality Division <br />Sampled On <br />Attn: Michael Kith <br />Sampled By <br />1868 East Hazelton Ave. <br />Received On <br />Stockton, CA 95205 <br />Matrix <br />Description : Wellhead <br />Project : 5455 Boggiano <br />Rd.,Stockton <br />Sample Result - Inorganic <br />May 26, 2021-10:50 <br />Doria Afonskaia <br />May 26, 2021-11:30 <br />Drinking Water <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 />Total Hardness as CaCO3 <br />107 <br />2.7 <br />mg/L <br />200.7 06/04/21:206199 <br />200.7 06/04/21:208525 <br />Calcium <br />23 <br />1 <br />mg/L <br />200.7 06/04/21:206199 <br />200.7 06/0421:208525 <br />Magnesium <br />12 <br />1 <br />mg/L <br />200.7 06/0421:206199 <br />200.7 06/0421:208525 <br />Potassium <br />3 <br />1 <br />mg/L <br />200.7 06/0421:206199 <br />200.7 06/04/21:208525 <br />odium <br />12 <br />1 <br />mg/L <br />200.7 06/0421:206199 <br />200.7 06/0421:208525 <br />Total Cations <br />2.7 <br />--- <br />meq/L <br />200.7 06/04/21:206199 <br />200.7 06/0421:208525 <br />Boron <br />ND <br />0.1 <br />mg/L <br />200.7 06/0421:206199 <br />200.7 06/0421:208525 <br />Copper <br />ND <br />10 <br />ug/L <br />10002 <br />200.7 06/0421:206199 <br />200.7 06/0421:208525 <br />Iron <br />ND <br />30 <br />ug/L <br />3002 <br />200.7 06/0421:206199 <br />200.7 06/04/21:208525 <br />anganese <br />ND <br />10 <br />ug/L <br />502 <br />200.7 06/0421:206199 <br />200.7 06/04/21:208525 <br />Zinc <br />ND <br />20 <br />ug/L <br />200.7 06/0421:206199 <br />200.7 06/0421:208525 <br />AR <br />0.5 <br />0.1 <br />-- <br />200.7 06/0421:206199 <br />200.7 06/0421:208525 <br />Total Alkalinity (as CaCO3) <br />140 <br />10 <br />mg/L <br />2320B 06/0621:206264 <br />23208 06/0721:208580 <br />Hydroxide as OH <br />ND <br />10 <br />mg/L <br />2320B 06/0621:206264 <br />2320B 06/0721:208580 <br />arbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320E 06/0621:206264 <br />23208 06/0721:208580 <br />Bicarbonate as HCO3 <br />170 <br />10 <br />mg/L <br />2320B 06/0621:206264 <br />23208 06/0721:208580 <br />Sulfate <br />5.0 <br />0.5 <br />mg/L <br />5002 <br />300.0 05/2721:205936 <br />300.0 052721:208032 <br />Chloride <br />4 <br />1 <br />mg/L <br />5002 <br />300.0 05/2721:205936 <br />300.0 052721:208032 <br />Nitrate as NO3 <br />2.4 <br />0.4 <br />mg/L <br />45 <br />300.0 05/2721:205936 <br />300.0 052721:208032 <br />itrite as N <br />ND <br />0.2 <br />mg/L <br />1 <br />300.0 052721:205936 <br />300.0 052721:208032 <br />Nitrate + Nitrite as N <br />0.5 <br />0.1 <br />mg/L <br />10 <br />300.0 052721:205936 <br />300.0 052721:208032 <br />Fluoride <br />ND <br />0.1 <br />mg/1L <br />2 <br />300.0 052721:205936 <br />300.0 052721:208032 <br />Total Anions <br />3.0 <br />--- <br />meq/L <br />23208 06/0621:206264 <br />2320B 06/0721:208580 <br />H (Field) <br />7.6 <br />-- <br />units <br />4500-H B 052621:206078 <br />052621:208225 <br />pecific Conductance <br />294 <br />1 <br />umhos/cm <br />16002 <br />25108 06/0721:206296 <br />2510E 06/0721:208513 <br />Total Dissolved Solids <br />210 <br />20 <br />mg/L <br />10002 <br />2540CE 052821:205969 <br />2540C 06/0121:208145 <br />MIBAS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />5540C 052721:206095 <br />5540C 052721:208246 <br />Aggressiveness Index <br />11.5 <br />1 <br />-- <br />4500-H B 052621:206078 <br />052621:208225 <br />angelier Index (20°C) <br />-0.3 <br />1 <br />-- <br />4500-H B 052621:206078 <br />0526/21:208225 <br />itrate Nitrogen 1 <br />0.5 <br />1 0.1 <br />1 mg/L <br />1 10 1 <br />300.0 052721:205936 <br />1 300.0 05/27/21:208032 <br />ND=Non-Detected. PQL--Practical Quantitation Limit. * PQL adjusted for dilution. <br />MCL = Maximum Contamination Level. 2 - Secondary Standard. 3 - CDPH Notification Level. AL = Regulatory Action Level. <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 />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 FAX: (209)942-0423 FAX: (530)343-3807 <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 />FAX: (805)783-2912 <br />CA ELAP Certification No. 2775 <br />Page 3 of 9 <br />Office & Laboratory <br />9415 W. Goshen Avenue <br />Visalia, CA 93291 <br />TEL: (559)734-9473 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 2810 <br />