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ENVIRONMENTAL . , Analytical Cheiiiists March 16,2022 Lab ID : STK2232361-001 Customer ID : 3-17919 San Joaquin Co.Environmental Health Dep Water Quality Division Sampled On : February 15, 2022-14:57 Attn: Michael Kith Sampled By : Frank Girardi 1868 East Hazelton Ave. Received On : February 15,2022-15:51 Stockton, CA 95205 Matrix : Drinking Water Description : Wellhead Project : 13270 W. Gallagher Rd.,Lodi, CA 95240 Sample Result-Inorganic Constituent Result PQL Units MCL/AL Sample Preparation Sample Analysis Method Date/ID Method Date/ID General Mineral Total Hardness as CaCO3 118 2.5 mg/L 200.7 02/17/22:201857 200.7 02/1722:202485 Calcium 29 1 mg/L 200.7 02/1722:201857 200.7 02/1722:202485 Magnesium II I mg/L 200.7 02/1722:201857 200.7 02/1722:202485 Potassium 2 1 mg/L 200.7 02/1722:201857 200.7 02/1722:202485 Sodium 27 1 mg/L 200.7 02/17/22:201857 200.7 02/1722:202485 Total Cations 3.6 --- meq/L 200.7 02/1722:201857 200.7 02/1722:202485 Boron ND 0.1 mg/L 200.7 02/1722:201857 200.7 02/1722:202485 Copper ND 10 ug/L 10002 200.7 02/17/22:201857 200.7 02/1722:202485 Iron 100 30 ug/L 3002 200.7 02/1722:201857 200.7 02/1722:202485 anganese 20 10 ug/L 502 200.7 02/1722:201857 200.7 02/1722:202485 Inc 120 20 ug/L 200.7 02/1722:201857 200.7 02/1722:202485 SAR 1.1 0.1 -- 200.7 02/1722:201857 200.7 02/1722:202485 Total Alkalinity(as CaCO3) 110 10 mg/L 2320B 022222:202091 2320B 022322:202757 Hydroxide as OH ND 10 mg/L 2320B 022222:202091 2320E 02/2322:202757 Carbonate as CO3 ND 10 mg/L 2320B 0222/22:202091 2320E 022322:202757 Bicarbonate as HCO3 130 10 mg/L 2320E 022222:202091 2320B 022322:202757 Sulfate 6.8 0.5 mg/L 5002 300.0 02/16/22:201798 300.0 02/1622:202434 Chloride 46 1 mg/L 5002 300.0 02/1622:201798 300.0 02/1622:202434 Nitrate as NO3 13.4 0.4 mg/L 45 300.0 02/16/22:201798 300.0 02/1622:202434 itrite as N ND 0.2 mg/L 1 300.0 02/16/22:201798 300.0 02/1622:202434 Nitrate+Nitrite as N 3.0 0.1 mg/L 10 300.0 02/1622:201798 300.0 02/1622:202434 Fluoride 0.1 0.1 mg/L 2 300.0 02/1622:201798 300.0 02/1622:202434 Total Anions 3.8 --- meq/L 2320E 022222:202091 2320B 022322:202757 H(Field) 6.15 --- units 4500-H B 02/1522:201965 4500HB 02/1522:202594 Specific Conductance 377 1 umhos/cm 16002 2510B 022122:201964 2510B 02/2122:202588 Total Dissolved Solids 270 20 mg/L 10002 2540CE 02/1722:201851 25400 02/1822:202499 AS Extraction ND 0.1 mg/L 0.52 5540C 02/1622:201970 55400 02/1622:202595 Aggressiveness Index 10.1 1 - 4500-H B 02/1522:201965 4500HB 02/15/22:202594 angelier Index(20°C) -1.8 1 -- 4500-H B 02/1522:201965 4500HB 02/1522:202594 I[Nitrate Nitrogen 1 3.0 1 0.1 1 mg/L 1 10 1 300.0 02/16/22:201798 300.0 02/1622:202434 ND=Non-Detected.PQL=Practical Quantitation Limit.*PQL adjusted for dilution. MCL=Maximum Contamination Level.2-Secondary Standard.3-CDPH Notification Level.AL=Regulatory Action Level. Page 3 of 9 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810