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.O `AGRICULTURAL <br /> Analytical Chemists <br /> August 13, 2024 <br /> Lab No. : STK2450298-001 <br /> San Joaquin Co. Environmental Health Dep Customer No.: 3017919 <br /> Water Quality Division <br /> Attn: Scott Sanglaang Sampled On :July 12, 2024 at 09:43 <br /> 1868 East Hazelton Ave. Sampled By : Aldara Salinas <br /> Stockton, CA 95205 Received On :July 12, 2024 at 11:05 <br /> Description :Well Head Matrix : Drinking Water <br /> Project :6800 Eldorado St French Camp <br /> WP0042852 <br /> Sample Results - Inorganic <br /> General Mineral Date Time Who Method Date Time Who <br /> Total Hardness as CaCO3 116 2.5 mg/L 07/16/2024 08:00 ac 2340B 07/16/2024 12:14 ac <br /> Calcium 30 1 mg/L 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Magnesium 10 1 mg/L 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Potassium 2 1 mg/L 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Sodium 68 1 mg/L 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Total Cations 5.3 1 meq/L 07/16/2024 08:00 ac Calc. 07/16/2024 12:14 ac <br /> Boron 0.3 0.1 mg/L 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Copper ND 10 ug/L 1000, 1 J 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Iron 50 30 ug/L 300, 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Manganese 190 10 ug/L 50, 1 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> Zinc ND 20 ug/L 5000 1 J 07/16/2024 08:00 ac EPA 200.7 07/16/2024 12:14 ac <br /> SAR 2.7 07/16/2024 08:00 ac Calc. 07/16/2024 12:14 ac <br /> Total Alkalinity(as CaCO3) 190 10 mg/L 1 07/20/2024 15:34 amm SM 4500-11+13 07/20/2024 22:45 amm <br /> Hydroxide as OH ND 10 mg/L 1 U 07/20/2024 15:34 amm SM 4500-H+B 07/20/2024 22:45 amm <br /> Carbonate as CO3 ND 10 mg/L 1 U 07/20/2024 15:34 amm SM 4500-11+13 07/20/2024 22:45 amm <br /> Bicarbonate as HCO3 240 10 mg/L 1 07/20/2024 15:34 amm SM 4500-H+B 07/20/2024 22:45 amm <br /> Sulfate 9.2 0.5 mg/L 500, 1 08/08/2024 12:00 Ifs EPA 300.0 08/08/2024 15:03 Ifs <br /> Chloride 34 1 mg/L 500, 1 08/08/2024 12:00 Ifs EPA 300.0 08/08/2024 15:03 Ifs <br /> Nitrate as NO3 ND 0.4 mg/L 45 1 U 07/24/2024 11:00 Up SM 4500-NO3 F 07/24/2024 12:31 ilp <br /> Nitrite as N ND 0.1 mg/L 1 1 U 07/13/2024 18:30 amm SM 4500-NO2 B 07/13/2024 19:17 amm <br /> Nitrate+Nitrite as N ND 0.4 mg/L 10 1 U 07/24/2024 11:00 Up SM 4500-NO3 F 07/24/2024 12:31 ilp <br /> Fluoride ND 0.1 mg/L 2 1 U 08/08/2024 12:00 Ifs EPA 300.0 08/08/2024 15:03 Ifs <br /> Total Anions 5.1 10 meq/L 08/08/2024 12:00 Ifs Calc. 08/08/2024 15:03 Ifs <br /> pH 8.06 --- units 1 07/12/2024 09:43 as SM 4500-H+B 07/12/2024 09:43 as <br /> Specific Conductance 493 1 umhos/cm 16002 1 07/20/2024 15:34 amm SM 4500-H+B 07/20/2024 22:45 amm <br /> Total Dissolved Solids 300 20 mg/L 10001 1 07/16/2024 12:00 ctl SM 2540 C 07/17/2024 11:15 ctl <br /> MBAs,Calc.as LAS,MW 320 Negative 0.1 mg/L 0.52 1 U 07/13/2024 17:06 amm SM 5540 C 07/13/2024 17:10 amm <br /> Aggressiveness Index 12.2 10 --- 07/16/2024 08:00 ac Calc. 07/16/2024 12:14 ac <br /> Langelier Index(20°C) 0.4 20 --- 07/16/2024 08:00 ac Calc. 07/16/2024 12:14 ac <br /> Nitrate Nitrogen ND 0.4 mg/L 10 1 U 07/24/2024 11:00 Up SM 4500-NO3 F 07/24/2024 12:31 ilp <br /> DQF Flags Definition: <br /> J Reported value is estimated;detected at a concentration below the RL and above the laboratory MDL. <br /> U Constituent results were non-detect. <br /> ND=Non-Detected, RL=Reporting Level, Dil.=Dilution <br /> MCL= Maximum Contamination Level. 2 - Secondary Standard. 3 -CDPH Notification Level.AL = Regulatory Action Level. <br /> Section: Sample Results Page 2 of 8 Page 2 of 8 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Undo Avenue 3442 Empresa Drive,Suite D 9411 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 /> 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 />