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WiL <br /> ENVIRONMENTAL <br /> Analytical Chemists <br /> June 9, 2021 Lab ID : STK2136694-001 <br /> Customer ID : 3-17919 <br /> San Joaquin Co. Environmental Health Dep <br /> Water Quality Division Sampled On : May 12,2021-11:05 <br /> Attn: Michael Kith Sampled By : Aaron Goodenham <br /> 1868 East Hazelton Ave. Received On : May 12, 2021-14:30 <br /> Stockton, CA 95205 Matrix : Drinking Water <br /> Description : Wellhead <br /> Project : 29639 Via Casilina <br /> Sample Result-Inorganic <br /> Constituent Result PQL Units MCL/AL Sample Preparation Sample Analysis <br /> Method Date/ID Method Date/ID <br /> General Mineral <br /> otal Hardness as CaCO3 67.8 2.J mg/L 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> Calcium 14 mg/L 200.7 05/17/21.205418 200.7 05/17/21:207350 <br /> agnesium 8 mg/L 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> otassium 3 mg/L 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> Sodium 14 mg/L 200.7 05/17/21.205418 200.7 05/17/21:207350 <br /> Total Cations 2.0 --- meq/L 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> Boron ND 0.1 mg/L 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> Copper ND 10 119/1- 10002 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> Ori ND 30 ug/L 3002 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> anganese ND 10 ug/L 502 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> inc 40 20 ug/L 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> SAR 0.7 0.1 -- 200.7 05/17/21:205418 200.7 05/17/21:207350 <br /> Total Alkalinity(as CaCO3) 70 10 mg/L 2320E 05/17/21:205461 23208 05/18/21:207364 <br /> Hydroxide as OH ND 10 mg/L 23208 05/17/21:205461 2320E 05/18/21:207364 <br /> Carbonate as CO3 ND 10 mg/L 2320B 05/17/21:205461 23208 05/18/21207364 <br /> Bicarbonate as HCO3 90 10 mg/L 2320E 05/17/21:205461 2320E 05/18/21:207364 <br /> Sulfate 11.6 0.5 mg/L 5002 300.0 05/13/21.205293 300.0 05/13/21:207101 <br /> Chloride 12 1 mg/L 5002 300.0 05/13/21.205293 300.0 05/13121:207101 <br /> Nitrate as NO3 8.9 0.4 mg/L 45 300.0 05/13/21.205293 300.0 05/13121:207101 <br /> Nitrite as N ND 0.2 mg/L 1 300.0 05/13/21:205293 300.0 05/13/21:207101 <br /> Nitrate+Nitrite as N 2.0 0.1 mg/L 10 300.0 05/13/21:205293 300.0 05/13121:207101 <br /> Fluoride 0.2 0.1 mg/L 2 300.0 05/13/21:205293 300.0 05/13121:207101 <br /> Total Anions 2.2 --- meq/L 2320B 05/17/21:205461 23208 05/18121:207364 <br /> H 7.6 -- units 4500-H B 05/14/21.205324 4500HB 05/14/21.207136 <br /> Specific Conductance 224 1 umhos/cm 1600' 2510E 05/18/21:205467 2510E 05/18/21:207331 <br /> Total Dissolved Solids 180 20 mg/L 10002 2540CE 05/14/21:205328 2540C 05/17/21:207279 <br /> AS Extraction ND 0.1 mg/L 0.52 5540C 05/13/21:205389 5540C 05/13/21:207229 <br /> Aggressiveness Index 11.0 1 -- 4500-H B 05/14/21:205324 4500HB 05/14/21:207136 <br /> angelier Index(20°C) -0.8 1 -- 4500-H B 05/14/21:205324 4500HB 05/14/21:207136 <br /> I[Nitrate Nitrogen 1 2.0 1 0.1 1 mg/L 1 10 1 300.0 05/13/21:205293 300.0 05/13/21:207101 <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 Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue <br /> Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 <br /> TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 <br /> Env FAX:(805)5254172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 <br /> 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 <br />