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November 30, 2021 Lab ID : STK2155487-001 <br />Customer ID :3-17919 <br />San Joaquin Co. Environmental Health Dep <br />Water Quality Division Sampled On : October 26, 2021-13:08 <br />Attn: Michael Kith Sampled By : Aaron Gooderham <br />1868 East Hazelton Ave. Received On : October 26, 2021-14:35 <br />Stockton, CA 95205 Matrix : Drinking Water <br />Description : Wellhead <br />Project : 13411 Castle Road <br />Sample Result - Inorganic <br />Constituent <br />Result <br />PQI. <br />Unit, <br />MCUAL <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 />49.8 <br />2.5 <br />mg/L <br />TEL: (805)783-2940 <br />200.7 1027/21:212506 <br />200.7 10/27/21:216840 <br />Calcium <br />15 <br />1 <br />mg/L <br />CA ELAP Certification No. 1563 <br />200.7 10/2721:212506 <br />200.7 102721:216840 <br />Magnesium <br />3 <br />1 <br />mg/1L <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Potassium <br />3 <br />1 <br />mg/L <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Sodium <br />53 <br />1 <br />mg/L <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Total Cations <br />3.4 <br />--- <br />meq/]L <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Boron <br />0.3 <br />0.1 <br />mg/L <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Copper <br />ND <br />10 <br />ug/L <br />10002 <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Iron <br />ND <br />30 <br />ug/L <br />3002 <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Manganese <br />ND <br />10 <br />ug/L <br />502 <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Inc <br />ND <br />20 <br />ug/L <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />SAR <br />3.3 <br />0.1 <br />-- <br />200.7 10/27/21:212506 <br />200.7 10/27/21:216840 <br />Total Alkalinity (as CaCO3) <br />130 <br />10 <br />mg/L <br />2320E 11/08/21:213008 <br />2320E 11/09/21:217454 <br />ydroxide as OH <br />ND <br />10 <br />mg/L <br />2320E 11/08/21:213008 <br />2320E 11/09/21:217454 <br />Carbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320E 11/08/21:213008 <br />2320E 11/09/21:217454 <br />Bicarbonate as HCO3 <br />150 <br />10 <br />mg/L <br />2320B 11/08/21:213008 <br />2320B 11/09/21:217454 <br />Sulfate <br />8.8 <br />0.5 <br />mg/L <br />5002 <br />300.0 11/24/21:213290 <br />300.0 11/24/21:218510 <br />Chloride <br />21 <br />1 <br />mg/L <br />5002 <br />300.0 11/24/21:213290 <br />300.0 11/24/21:218510 <br />Nitrate as NO3 <br />2.1 <br />0.4 <br />mg/L <br />45 <br />300.0 1124/21:213290 <br />300.0 11/24/21:218510 <br />Nitrite as N <br />ND <br />0.2 <br />mg/L <br />1 <br />300.0 11/24/21:213290 <br />300.0 11/24/21:218510 <br />Nitrate + Nitrite as N <br />0.5 <br />0.1 <br />mg/L <br />10 <br />300.0 11/24/21:213290 <br />300.0 11/24/21:218510 <br />Fluoride <br />0.1 <br />0.1 <br />mg/L <br />2 <br />300.0 11/24/21:213290 <br />300.0 11/24/21:218510 <br />Total Anions <br />3.3 <br />--- <br />meq/L <br />2320E 11/08/21:213008 <br />2320B 11/09/21:217454 <br />H (Field) <br />8.04 <br />--- <br />units <br />4500-H B 10/26/21:212628 <br />4500HB 10/26/21:216949 <br />Specific Conductance <br />357 <br />1 <br />umhos/cm <br />16002 <br />2510B 11/10/21:213089 <br />2510B 11/10/21:217524 <br />Total Dissolved Solids <br />280 <br />20 <br />mg/L <br />10002 <br />2540CE 10/28/21:212539 <br />2540C 10/29/21:216880 <br />AS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />5540C 10/28/21:212825 <br />55400 11/04/21:217200 <br />Aggressiveness Index <br />11.7 <br />1 <br />-- <br />4500-H B 10/26/21:212628 <br />4500HB 10/26/21:216949 <br />[Langelier Index (20°C) <br />-0.1 <br />1 <br />-- <br />4500-H B 10/26/21:212628 <br />4500HB 10/26/21:216949 <br />urate Nitrogen <br />0.5 <br />(LI <br />m <br />10 <br />300.0 11/24/21:213290 <br />300.0 11/24/21:218510 <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 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 <br />CA ELAP Certification No. 2670 <br />CA ELAP Certification No. 2775 <br />CA ELAP Certification No. 2810 <br />