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November 24, 2021 Lab ID : STK2155807-001 <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 : 8751 W. Eight Mile Rd <br />Customer ID : 3-17919 <br />Sampled On : November 2, 2021-10:45 <br />Sampled By : Naseem Ahmed <br />Received On : November 2, 2021-11:35 <br />Matrix : Drinking Water <br />Sample Result - Inorganic <br />Constituent <br />RCsull <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 />266 <br />2.5 <br />mg/L <br />TEL: (805)783-2940 <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Calcium <br />54 <br />1 <br />mg/L <br />CA ELAP Certification No. 1563 <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Magnesium <br />32 <br />1 <br />mg/L <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Potassium <br />2 <br />1 <br />mg/L <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Sodium <br />78 <br />1 <br />mg/L <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Total Cations <br />8.8 <br />--- <br />meq/L <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Boron <br />ND <br />0.1 <br />mg/L <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Copper <br />10 <br />10 <br />ug/L <br />10002 <br />200.7 11/04/21:212881 <br />200.7 11/04121.217398 <br />Iron <br />280 <br />30 <br />ug/L <br />3002 <br />200.7 11/04/21:212881 <br />2003 11/04/21:217398 <br />anganese <br />550 <br />10 <br />ug/L <br />502 <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Inc <br />70 <br />20 <br />ug/L <br />200.7 11/04/21:212881 <br />200.7 11/04/21217398 <br />SAR <br />2.1 <br />0.1 <br />-- <br />200.7 11/04/21:212881 <br />200.7 11/04/21:217398 <br />Total Alkalinity (as CaCO3) <br />210 <br />10 <br />mg/L <br />2320B 11/11/21:213151 <br />2320B 11/11/21:217682 <br />Hydroxide as OH <br />ND <br />10 <br />mg/L <br />2320B 11/11/21:213151 <br />2320B 11/11/21:217682 <br />arbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320B 11/11/21:213151 <br />2320B 11/11/21:217682 <br />Bicarbonate as HCO3 <br />250 <br />10 <br />mg/L <br />2320B 11/11/21:213151 <br />2320B 11/11/21:217682 <br />Sulfate <br />2.8 <br />0.5 <br />mg/L <br />5002 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <br />Chloride <br />169 <br />4* <br />mg/L <br />5002 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <br />Nitrate as NO3 <br />ND <br />0.4 <br />mg/L <br />45 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <br />itrite as N <br />ND <br />0.2 <br />mg/L <br />1 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <br />itrate + Nitrite as N <br />ND <br />0.1 <br />mg/L <br />10 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <br />luoride <br />ND <br />0.1 <br />mg/L <br />2 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <br />otal Anions <br />8.9 <br />--- <br />meq/L <br />2320E 11/11/21:213151 <br />2320B 11/11/21:217682 <br />H (Field) <br />7.59 <br />--- <br />units <br />4500-H B 11/02/21:212978 <br />4500HB 11/02/21:217376 <br />Specific Conductance <br />1010 <br />1 <br />umhos/cm <br />16002 <br />2510B 11/15/21:213300 <br />2510E 11/15/21:217795 <br />Total Dissolved Solids <br />600 <br />20 <br />mg/L <br />10002 <br />2540CE 11/05/21:212901 <br />2540C 11/08/21:217391 <br />AS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />5540C 11/04/21:212949 <br />5540C 11/04/21:217347 <br />Aggressiveness Index <br />12.0 <br />1 <br />-- <br />4500-H B 11/02/21:212978 <br />4500HB 11/02/21:217376 <br />Langelier Index (20°C) <br />0.2 <br />1 <br />-- <br />4500-H B 11/02/21:212978 <br />4500HB 11/02/21:217376 <br />itrate Nitrogen I <br />ND 1 <br />0.1 1 <br />mg/L 1 <br />10 1 <br />300.0 11/03/21:212758 <br />300.0 11/04/21:217270 <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 />Page 3 of 8 <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 <br />CA ELAP Certification No. 2670 <br />CA ELAP Certification No. 2775 <br />CA ELAP Certification No. 2810 <br />