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April 27, 2022 Lab ID : STK2234796-001 <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 : 12445 Curry Rd.,Lodi <br />Customer ID : 3-17919 <br />Sampled On : April 8, 2022-11:04 <br />Sampled By : Frank Giardi <br />Received On : April 8, 2022-12:05 <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 />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 FAX: (209)942-0423 <br />CA ELAP Certification No. 1573 <br />CA ELAP Certification No. 1563 <br />Total Hardness as CaCO3 <br />77.1 <br />2.5 <br />mg/L <br />200.7 04/12/22:203988 <br />200.7 04/12222:205220 <br />Calcium <br />21 <br />1 <br />mg/L <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Magnesium <br />6 <br />1 <br />mg/L <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Potassium <br />2 <br />1 <br />mg/L <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Sodium <br />13 <br />1 <br />mg/L <br />200.7 04/12/22:203988 <br />200.7 04/12222:205220 <br />Total Cations <br />2.2 <br />--- <br />meq/L <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Boron <br />ND <br />0.1 <br />mg/L <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Copper <br />ND <br />10 <br />ug/L <br />10002 <br />200.7 04/12/22:203988 <br />200.7 04/,2/22:205220 <br />Iron <br />ND <br />30 <br />ug/L <br />3002 <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Manganese <br />ND <br />10 <br />ug/L <br />502 <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Zinc <br />60 <br />20 <br /><Ug/I. <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />SAR <br />0.6 <br />0.1 <br />-- <br />200.7 04/12/22:203988 <br />200.7 04/12/22:205220 <br />Total Alkalinity (as CaCO3) <br />90 <br />10 <br />mg/L <br />2320B 04/20/22:204342 <br />2320B 04/2022:205720 <br />Hydroxide as OH <br />ND <br />10 <br />mg/L <br />2320B 04/20/22:204342 <br />2320E 04/20/22:205720 <br />Carbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320B 04/20/22:204342 <br />2320E 04/20/22:205720 <br />Bicarbonate as HCO3 <br />110 <br />10 <br />mg/L <br />2320B 04/20/22:204342 <br />2320B 04/20/22:205720 <br />Sulfate <br />7.3 <br />0.5 <br />mg/L <br />5002 <br />300.0 04/19/22:204276 <br />300.0 04/19/22:205691 <br />Chloride <br />5 <br />1 <br />mg/L <br />5002 <br />300.0 04/19/22:204276 <br />300.0 04/19/22:205691 <br />Nitrate as NO3 <br />2.3 <br />0.2 <br />mg/L <br />45 <br />450ONO3F 04/12/22:204003 <br />450ONO3F 04/12/22:205212 <br />Nitrite as N <br />ND <br />0.1 <br />mg/L <br />I <br />450ONO2B 04/09/22:203997 <br />450ONO2B 04/12/22:205189 <br />Nitrate + Nitrite as N <br />0.5 <br />0.2 <br />mg/L <br />10 <br />450ONO3F 04/12/22:204003 <br />450ONO3F 04/1222:205212 <br />Fluoride <br />0.1 <br />0.1 <br />mg/L <br />2 <br />300.0 04/1922:204276 <br />300.0 04/19/22:205691 <br />Total Anions <br />2.1 <br />--- <br />meq/L <br />2320B 042022:204342 <br />2320E 042022:205720 <br />pH (Field) <br />6.8 <br />-- <br />units <br />4500-H B 04/0822:203923 <br />4500HB 04/0822:205059 <br />Specific Conductance <br />218 <br />1 <br />umhos/cm <br />16002 <br />25108 042622:204549 <br />2510B 042622:205897 <br />Total Dissolved Solids <br />150 <br />20 <br />mg/L. <br />10002 <br />2540CE 04/1222:203987 <br />25400 04/1322:205249 <br />MBAS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />55400 04/09/22:203911 <br />55400 04/0922:205054 <br />Aggressiveness Index <br />10.5 <br />1 <br />-- <br />4500-H B 04/0822:203923 <br />4500HB 04/0822:205059 <br />Langelier Index (20°C) <br />-1.3 <br />1 <br />4500-H B 04/0822:203923 <br />4500HB 04/0822:205059 <br />itrate Nitrogen <br />0.5 <br />0.2 <br />mg/L <br />1 10 <br />450ONO3F 04/12/22:204003 <br />1 450ONO3F 04/12/22:205212 <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 />563 E. Lindo Avenue 3442 Empresa Drive, Suite D <br />Chico, CA 95926 San Luis Obispo, CA 93401 <br />TEL: (530)343-5818 TEL: (805)783-2940 <br />FAX: (530)343-3807 FAX: (805)783-2912 <br />CA ELAP Certification No. 2670 CA ELAP Certification No. 2775 <br />Office & Laboratory <br />853 Corporation Street <br />2500 Stagecoach Road <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />TEL: (805)392-2000 <br />TEL: (209)942-0182 <br />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 FAX: (209)942-0423 <br />CA ELAP Certification No. 1573 <br />CA ELAP Certification No. 1563 <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 />