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January 28, 2022 Lab ID : STK2230304 <br />San Joaquin Co. Environmental Health Dep Customer :3-17919 <br />Quality Control - Inorganic <br />Constituent <br />Method <br />Date/11) <br />Type <br />Units <br />Cone. <br />QC Data <br />DQO <br />Note <br />Metals <br />Sodium <br />200.7 <br />01 /07/22:200361 AC <br />CCB <br />ppm <br />0.01 <br />1 <br />inc <br />200.7 <br />MS <br />ug/L <br />800.0 <br />105% <br />75-125 <br />(SP 2200232-008) <br />MSD <br />Ug/l, <br />800.0 <br />97.8% <br />75-125 <br />MSRPD <br />u <br />4000 <br />7.4% <br />_520.0 <br />200.7 <br />01/ 10/22:200611 AC <br />CCB <br />ppm <br />-0.0001 <br />0.02 <br />CCV <br />ppm <br />0.000 <br />0.0% <br />90-110 <br />CCV <br />ppm <br />1.000 <br />98.1% <br />90-110 <br />CCB <br />ppm <br />-0.0034 <br />1 0.02 <br />Wet Chem <br />Alkalinity (as CaCO3) <br />2320B <br />(STK2230376-001) <br />Dup <br />mg/L <br />0.4% <br />10 <br />2320B <br />01/18/22:200877AMM <br />CCV <br />mg/L <br />235.8 <br />95.4% <br />90-110 <br />CCV <br />mg/L <br />235.8 <br />104% <br />90-110 <br />Bicarbonate <br />2320B <br />(STK2230376-001) <br />Dup, <br />mg/L <br />0.3% <br />10 <br />Carbonate <br />2320B <br />(STK2230376-001) <br />Dup <br />mg/L <br />0.0 <br />l0 <br />Hydroxide <br />2320B <br />STK2230376-001) <br />Dup <br />mg/L <br />0.0 <br />10 <br />Conductivity <br />2510B <br />01/ 11/22:200436sta <br />ICB <br />umbos/cm <br />0.0800 <br />1 <br />CCV <br />umhos/cm <br />999.0 <br />97.5% <br />95-105 <br />CCV <br />umhos/cm <br />999.0 <br />96.7% <br />95-105 <br />E. C. <br />2510B <br />01/11/22:200330sta <br />Blank <br />umhos/cm <br />ND <br /><I <br />(SP 2200297-001) <br />Dup <br />umhos/cm <br />0.1% <br />5 <br />Total Dissolved Solids (TFR) <br />2540CE <br />01/10/22:200289CTL <br />Blank <br />mg/L <br />ND <br /><20 <br />LCS <br />mg/L <br />991.2 <br />101% <br />90-110 <br />(SP 2200292-001) <br />Dup, <br />mg/L <br />0.5% <br />5 <br />(SP 2200292-001) <br />Dup, <br />m <br />0.4% <br />5 <br />Chloride <br />300.0 <br />01/07/22:20023ONJB <br />Blank <br />mg/L <br />ND <br /><1 <br />LCS <br />mg/L <br />25.00 <br />101% <br />90-110 <br />MS <br />mg/L <br />50.00 <br />17.4% <br /><'/, <br />(STK2230047-001) <br />MSD <br />mg/L <br />50.00 <br />15.6% <br /><''A <br />MSRPD <br />mg/L <br />10.00 <br />0.3% <br />5519 <br />MS <br />mg/L <br />50.00 <br />91.7% <br />85-121 <br />(STK2230250-001) <br />MSD <br />mg/L <br />50.00 <br />101% <br />85-121 <br />MSRPD <br />mg/L <br />10.00 <br />6.7% <br />:519 <br />300.0 <br />01/07/22:200451njb <br />CCB <br />mg/I <br />0.0870 <br />1 <br />CCV <br />mg/I <br />25.00 <br />102% <br />90-110 <br />CCB <br />mg/l <br />0.0800 <br />l <br />CCV <br />Mg/1 <br />25.00 <br />102% <br />90-110 <br />Fluoride <br />300.0 <br />01/07/22:20023ONJB <br />Blank <br />mg/L <br />ND <br /><0.1 <br />LCS <br />mg/L <br />2.500 <br />103% <br />90-110 <br />MS <br />mg/L <br />5.000 <br />98.3% <br />87-120 <br />(STK2230047-001) <br />MSD <br />mg/L <br />5.000 <br />107% <br />87-120 <br />MSRPD <br />mg/L <br />10.00 <br />8.2% <br />5_16 <br />MS <br />mg/L <br />5.000 <br />68.3% <br />87-120 <br />435 <br />(STK2230250-001) <br />MSD <br />mg/L <br />5.000 <br />76.6% <br />87-120 <br />435 <br />MSRPD <br />mg/L <br />10.00 <br />11.5% <br />516 <br />300.0 <br />01/07/22:200451njb <br />CCB <br />mg/l <br />0.00 <br />0.1 <br />CCV <br />mg/1 <br />2.500 <br />102% <br />90-110 <br />CCB <br />mg/1 <br />0.00 <br />0.1 <br />CCV <br />mg/1 <br />2.500 <br />102% <br />90-110 <br />Nitrate <br />300.0 <br />01/07/22:20023ONJB <br />Blank <br />mg/L <br />ND <br /><0.4 <br />LCS <br />mg/L <br />20.00 <br />101% <br />90-110 <br />MS <br />mg/L <br />40.00 <br />98.1% <br />85-119 <br />(STK2230047-001) <br />MSD <br />mg/L <br />40.00 <br />106% <br />85-119 <br />MSRPD <br />mg/L <br />10.00 <br />7.6% <br />:519 <br />MS <br />I mg/L <br />1 40.00 <br />1 94.7% <br />1 85419 <br />Page 7 of 9 <br />