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June 23, 2021 Lab ID : STK2137082-001 <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 :4700 Lovely Rd.,Tracy CA <br />Customer ID : 3-17919 <br />Sampled On : May 19, 2021-10:15 <br />Sampled By : Aldara Salinas <br />Received On : May 19, 2021-11:40 <br />Matrix : Drinking Water <br />Sample Result - Inorganic <br />Constituent <br />Result <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 />3442 Empresa Drive, Suite D <br />9415 W. Goshen Avenue <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />Total Hardness as CaCO3 <br />209 <br />15 <br />mg/L <br />TEL: (805)783-2940 <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Calcium <br />44 <br />1 <br />mg/L <br />CA ELAP Certification No. 1563 <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Magnesium <br />24 <br />1 <br />mg/L <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Potassium <br />4 <br />1 <br />mg/L <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Sodium <br />128 <br />1 <br />mg/L <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Total Cations <br />9.8 <br />--- <br />meq/L <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Boron <br />0.8 <br />0.1 <br />mg/L <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Copper <br />ND <br />10 <br />ug/L <br />10002 <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Iron <br />390 <br />30 <br />ug/L <br />3002 <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />anganese <br />70 <br />10 <br />ug/L <br />502 <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />inc <br />1100 <br />20 <br />ug/L <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />SAR <br />3.9 <br />0.1 <br />-- <br />200.7 05/24/21:205769 <br />200.7 05/24/21:207767 <br />Total Alkalinity (as CaCO3) <br />130 <br />10 <br />mg/L <br />2320B 05/27/21:205889 <br />2320B 05/28/21:208034 <br />Hydroxide as OH <br />ND <br />10 <br />mg/L <br />2320B 05/27/21:205889 <br />2320B 05/28/21:208034 <br />arbonate as CO3 <br />ND <br />10 <br />mg/L <br />2320B 05/27/21:205889 <br />2320B 05/28/21:208034 <br />/carbonate as HCO3 <br />160 <br />10 <br />mg/L <br />2320B 05/27/21:205889 <br />2320B 05/28/21:208034 <br />Sulfate <br />214 <br />1 * <br />mg/L <br />5002 <br />300.0 06/09/21:206443 <br />300.0 06/10/21:208775 <br />Chloride - - -- <br />----106- <br />--1 -- <br />- mg/L <br />5002- <br />_ 300:0 -06/09/21:206443 <br />-300.0--- 06/10/21:208775 <br />Nitrate as NO3 <br />ND <br />0.9 <br />mg/L <br />45 <br />450ONO3F 05/20/21:205642 <br />450ONO3F 05/20/21:207567 <br />itrite as N <br />ND <br />0.2 <br />mg/L <br />1 <br />450ONO3F 05/20/21:205643 <br />450ONO3F 05/20/21.207564 <br />Nitrate + Nitrite as N <br />ND <br />0.2 <br />mg/1' <br />10 <br />450ONO3F 05/20/21:205642 <br />450ONO3F 05/20/21:207567 <br />Fluoride <br />ND <br />0.1 <br />mg/L <br />2 <br />300.0 06/09/21:206443 <br />300.0 06/10/21:208775 <br />Total Anions <br />10.1 <br />--- <br />meq/L <br />2320B 05/27/21:205889 <br />2320B 05/28/21:208034 <br />H (Field) <br />7.7 <br />-- <br />pmts <br />4500-H B 05/19/21:205788 <br />05/1921:207776 <br />Specific Conductance <br />1070 <br />1 <br />umhos/cm <br />16002 <br />2510B 052821:205946 <br />2510B 0528/21:208005 <br />Total Dissolved Solids <br />650 <br />20 <br />mg/L <br />10002 <br />2540CE 052121:205653 <br />2540C 052421:207709 <br />MBAS Extraction <br />ND <br />0.1 <br />mg/L <br />0.52 <br />5540C 052021:205941 <br />5540C 052021:208000 <br />Aggressiveness Index <br />11.9 <br />1 <br />-- <br />4500-H B 05/1921:205788 <br />05/1921:207776 <br />Langelier Index (20°C) <br />-0.03 <br />1 <br />-- <br />4500-H B 05/1921:205788 <br />05/1921:207776 <br />itrate Nitrogen I <br />ND 1 <br />0.2 1 <br />mg/L 1 <br />10 1 <br />450ONO3F 0520/21:205642 1 <br />450ONO3F 05/2021:207567 <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 8 <br />Corporate Offices & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />853 Corporation Street <br />2500 Stagecoach Road <br />563 E. Lindo Avenue <br />3442 Empresa Drive, Suite D <br />9415 W. Goshen Avenue <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />Visalia, CA 93291 <br />TEL (805)392-2000 <br />TEL: (209)942-0182 <br />TEL: (530)343-5818 <br />TEL: (805)783-2940 <br />TEL: (559)734-9473 <br />Env FAX: (805)525-4172 /Ag FAX: (805)392-2063 FAX: (209)942-0423 <br />FAX: (530)343-3807 <br />FAX: (805)783-2912 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 1573 <br />CA ELAP Certification No. 1563 <br />CA ELAP Certification No. 2670 <br />CA ELAP Certification No. 2775 <br />CA ELAP Certification No. 2810 <br />