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September 1, 2021 Lab ID : STK2151409-001 <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 :689 W. Turner Rd., Lodi <br />Customer ID :3-17919 <br />Sampled On : August 10, 2021-13:15 <br />Sampled By : Naseem Ahmed <br />Received On : August 10, 2021-15:25 <br />Matrix : Drinking Water <br />Sample Result - Inorganic <br />Constituent <br />KCSUII <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 />84.4 <br />2.5 <br />mg/L <br />200.7 08/12/21:209243 <br />200.7 08/13/21:212681 <br />Calcium <br />19 <br />1 <br />mg/L <br />200.7 08/12/21:209243 <br />200.7 08/13/21:212681 <br />Magnesium <br />9 <br />1 <br />mg/L <br />200.7 08/12/21:209243 <br />200.7 08/17/21:212757 <br />Potassium <br />2 <br />1 <br />mg/L <br />200.7 08/12/21:209243 <br />200.7 08/13/21:212681 <br />Sodium <br />18 <br />1 <br />mg/L <br />200.7 08/12/21:209243 <br />200.7 08/1321:212681 <br />Total Cations <br />2.5 <br />--- <br />meq/L <br />200.7 08/1221:209243 <br />200.7 08/1321:212681 <br />Boron <br />ND <br />0.1 <br />mg/L <br />200.7 08/1221:209243 <br />200.7 08/1321:212681 <br />Copper <br />ND <br />10 <br />ug/L <br />10002 <br />200.7 08/1221:209243 <br />200.7 08/1321:212681 <br />On <br />100 <br />30 <br />ug/L <br />3002 <br />200.7 08/1221:209243 <br />200.7 08/1321.212681 <br />anganese <br />200 <br />10 <br />ug/L <br />502 <br />200.7 08/1221:209243 <br />200.7 08/1321:212681 <br />Zinc <br />ND <br />20 <br />ug/L <br />200.7 08/1221:209243 <br />200.7 08/1321:212681 <br />SAR <br />0.9 <br />0.1 <br />-- <br />200.7 08/1221:209243 <br />200.7 08/1321:212681 <br />Total Alkalinity (as CaCO3) <br />100 <br />10 <br />mg/L <br />2320E 08/1921:209506 <br />2320B 082021.212938 <br />Hydroxide as OH <br />ND <br />10 <br />mg/L <br />2320B 08/1921:209506 <br />2320B 082021:212938 <br />arbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320E 08/1921:209506 <br />2320E 082021.212938 <br />Bicarbonate as HCO3 <br />120 <br />10 <br />mg/L <br />2320E 08/1921:209506 <br />2320E 082021:212938 <br />Sulfate <br />17.8 <br />0.5 <br />mg/L <br />5002 <br />300.0 08/1121:209182 <br />300.0 08/1121:212465 <br />Chloride <br />6 <br />1 <br />mg/L <br />5002 <br />300.0 08/1121:209182 <br />300.0 08/1121:212465 <br />Nitrate as NO3 <br />ND <br />0.4 <br />mg/L <br />45 <br />300.0 08/1121:209182 <br />300.0 08/1121:212465 <br />Nitrite as N <br />ND <br />0.2 <br />mg/L <br />1 <br />300.0 08/1121:209182 <br />300.0 08/1121:212465 <br />Nitrate + Nitrite as N <br />ND <br />0.1 <br />mg/L <br />10 <br />300.0 08/1121:209182 <br />300.0 08/1121:212465 <br />Fluoride <br />0.1 <br />0.1 <br />mg/L <br />2 <br />300.0 08/1121:209182 <br />300.0 08/1121:212465 <br />Total Anions <br />2.5 <br />--- <br />meq/L <br />2320E 08/1921:209506 <br />2320E 082021:212938 <br />H (Field) <br />7.56 <br />--- <br />units <br />4500-H B 08/1021:209393 <br />4500HB 08/1021:212671 <br />Specific Conductance <br />254 <br />1 <br />umhos/cm <br />16002 <br />2510E 08/2521:209749 <br />2510E 082521:213140 <br />Total Dissolved Solids <br />200 <br />20 <br />mg/L <br />10002 <br />2540CE 08/1321:209266 <br />2540C 08/1621:212595 <br />AS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />5540C 08/12/21:209474 <br />5540C 08/1221:212779 <br />Aggressiveness Index <br />11.2 <br />1 <br />-- <br />4500-H B 08/1021:209393 <br />4500HB 08/1021:212671 <br />Langelier Index (20°C) <br />-0.6 <br />1 <br />-- <br />4500-H B 08/1021:209393 <br />4500HB 08/1021.212671 <br />prate Nitrogen <br />I ND <br />1 0.1 <br />1 mg/L <br />1 10 <br />1 300.0 08/11/21:209182 <br />1 300.0 08/11/21:212465 <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 />