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FGL <br /> ENVIRONMENTAL • , <br /> Analytical Clicrnists <br /> March 2, 2021 Lab ID : STK2131533-001 <br /> Customer ID : 3-17919 <br /> San Joaquin Co. Environmental Health Dep <br /> Water Quality Division Sampled On : February 3, 2021-10:00 <br /> Attn: Michael Kith Sampled By : Francisco Garcia Rui <br /> 1868 East Hazelton Ave. Received On : February 3, 2021-12:00 <br /> Stockton, CA 95205 Matrix : Drinking Water <br /> Description : Wellhead <br /> Project : 8347 Simi Ct. Stockton, CA 95212 <br /> Sample Result-Inorganic <br /> Constituent Result PQL Units MCL/AL Sample Preparation Sample Analysis <br /> Method Date/lD Method Date/ID <br /> General Mineral <br /> Total Hardness as CaCO3 124 2.5 mg/L, 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Calcium 25 1 mg/L 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Magnesium 15 1 mg/L 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Potassium 4 1 mg/L 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Sodium 13 1 mg/L 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Total Cations 3.1 --- meq/L 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Boron ND 0.1 mg/L 200.7 02/09/21:201383 200.7 02/09/21.201936 <br /> Copper ND 10 ug/L 10002 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Iron ND 30 ug/L 3002 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> anganese ND 10 ug/L 502 200.7 02/09/21:201383 200.7 02/09/21.201936 <br /> Zinc 520 20 ug/L 200.7 02/09/21:201383 200.7 02/09/21.201936 <br /> SAR 0.5 0.1 -- 200.7 02/09/21:201383 200.7 02/09/21:201936 <br /> Total Alkalinity(as 150 10 mg/L 2320B 02/09/21:201400 2320B 02/09/21:201943 <br /> CaCO3) <br /> ydroxide as OH ND 10 mg/L 2320E 02/09/21:201400 23208 02/09/21.201943 <br /> Carbonate as CO3 ND 10 mg/L 2320E 02/09/21:201400 23208 02/09/21:201943 <br /> Bicarbonate as HCO3 180 10 mg/L 2320B 02/09/21:201400 2320B 02109/21.201943 <br /> Sulfate 10.1 0.5 mg/L 5002 300.0 02/04/21:201242 300.0 02/04/21:201701 <br /> Chloride 7 1 mg/L 5002 300.0 02/04/21:201242 300.0 02/04/21:201701 <br /> itrate as NO3 6.7 0.4 mg/L 45 300.0 02/04/21:201242 300.0 02/04/21:201701 <br /> Nitrite as N ND 0.2 mg/L 1 300.0 02/04/21:201242 300.0 02/04/21:201701 <br /> Nitrate+Nitrite as N 1.5 0.1 mg/L 10 300.0 02/04/21:201242 300.0 02/04/21:201701 <br /> Fluoride ND 0.1 mg/L 2 300.0 02/04/21:201242 300.0 02/04/21:201701 <br /> Total Anions 3.5 --- meq/L 2320B 02/09/21:201400 2320B 02/09/21.201943 <br /> H(Field) 8.2 -- units 4500-H B 02/03/21:201332 4500HB 02/03/21:201815 <br /> Specific Conductance 345 1 umhos/cm 16002 2510B 02/10/21:201423 25108 02/10/21:201949 <br /> Total Dissolved Solids 230 20 mg/L 10002 2540CE 02/08/21:201346 2540C 02/09/21:201894 <br /> BAS Screen Negative 0.1 mg/L 0.52 5540C 02/05/21:201462 5540C 02/05/21:201989 <br /> Aggressiveness Index 12.2 1 -- 4500-H B 02/03/21:201332 4500HB 02/03/21:201815 <br /> angelier Index(20°C) 0.3 1 -- 4500-H B 02/03/21:201332 4500HB 02/03/21:201815 <br /> ltrate Nitrogen 1.5 0.1 mg/L 10 300.0 02/04/21:201242 300.0 02/04/21:201701 <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)525-4172/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 />