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February 2, 2022 Lab ID : STK2230658 <br />San Joaquin Co. Environmental Health Dep Customer :3-17919 <br />Quality Control - Inorganic <br />Constituent <br />Method <br />Date/ID <br />Type <br />Units <br />Conc. <br />QC Data <br />DQO <br />Note <br />Metals <br />Sodium <br />200.7 <br />01/14/22:200790AC <br />CCB <br />Pro <br />-0.007 <br />1 <br />inc <br />200.7 <br />MS <br />ug/L <br />800.0 <br />101% <br />75-125 <br />(STK2230658-001) <br />MSD <br />ug/L <br />800.0 <br />90.5% <br />75-125 <br />MSRPD <br />ug/L <br />4000 <br />7.4% <br /><20.0 <br />200.7 <br />0 1/ 1 4/22:200790AC <br />CCV <br />ppm <br />1.000 <br />98.6% <br />90-110 <br />CCB <br />ppm <br />0.0011 <br />0.02 <br />CCV <br />ppm <br />1.000 <br />99.8% <br />90-110 <br />CCB <br />m <br />0.0012 <br />0.02 <br />Wet Chem <br />Alkalinity (as CaCO3) <br />2320B <br />(VI 2240252-002) <br />Dup <br />mg/L <br />1.8% <br />10 <br />2320B <br />01/19/22:200917AMM <br />CCV <br />mg/L <br />235.8 <br />95.0% <br />90-110 <br />CCV <br />mg/L <br />235.8 <br />98.1 % <br />90-110 <br />Bicarbonate <br />2320B <br />(VI 2240252-002) <br />Dup <br />mg/L <br />1.8% <br />10 <br />Carbonate <br />2320B <br />(VI 2240252-002) <br />Dup <br />m <br />0.0 <br />10 <br />Hydroxide <br />2320B <br />(VI 2240252-002) <br />Dup <br />mg/L <br />0.0 <br />10 <br />Conductivity <br />2510B <br />01/17/22:200704sta <br />ICB <br />umhos/cm <br />0.0800 <br />1 <br />CCV <br />umhos/cm <br />999.0 <br />96.5% <br />95-105 <br />CCV <br />umhos/cm <br />999.0 <br />96.4% <br />95-105 <br />E. C. <br />2510B <br />01/17/22:200544sta <br />Blank <br />umhos/cm <br />ND <br /><I <br />(SP 2200605-001) <br />Dup <br />umhos/cm <br />0.05% <br />5 <br />Total Dissolved Solids (TFR) <br />2540CE <br />01/14/22:200488CTL <br />Blank <br />mg/L <br />ND <br /><20 <br />LES <br />mg/L <br />991.0 <br />102% <br />90-110 <br />(CC 2280175-002) <br />Dup <br />mg/L <br />2.7% <br />5 <br />(CC 2280175-002) <br />Dup <br />mg/L <br />1 <br />1.5% <br />5 <br />hloride <br />300.0 <br />01/ 13/22:20046 1 NJB <br />Blank <br />mg/L <br />ND <br /><1 <br />LCS <br />mg/L <br />25.00 <br />103% <br />90-110 <br />MS <br />mg/L <br />50.00 <br />88.7% <br />85-121 <br />(CC 2280175-004) <br />MSD <br />mg/L <br />50.00 <br />97.7% <br />85-121 <br />MSRPD <br />I mg/L <br />10.00 <br />1 4.5% <br /><19 <br />300.0 <br />01/13/22:200772njb <br />CCB <br />mg/1 <br />0.0790 <br />1 <br />CCV <br />mg/l <br />25.00 <br />101% <br />90-110 <br />CCB <br />mg/1 <br />0.0840 <br />1 <br />CCV <br />mg/l <br />25.00 <br />101% <br />90-110 <br />Fluoride <br />300.0 <br />01/13/22:20046INJB <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 />99.3% <br />87-120 <br />(CC 2280175-004) <br />MSD <br />mg/L <br />5.000 <br />109% <br />87-120 <br />MSRPD <br />I mg/L <br />10.00 <br />9.7% <br />1 <16 <br />300.0 <br />01/13/22:200772njb <br />CCB <br />mg/1 <br />0.00 <br />0.1 <br />CCV <br />mg/1 <br />2.500 <br />101% <br />90-110 <br />CCB <br />mg/1 <br />0.00 <br />0.1 <br />CCV <br />mg/l <br />2.500 <br />101% <br />90-110 <br />Nitrate <br />300.0 <br />01/13/22:20046INJB <br />Blank <br />mg/L <br />ND <br /><0.4 <br />LCS <br />mg/L <br />20.00 <br />103% <br />90-110 <br />MS <br />mg/L <br />40.00 <br />61.4% <br />85-119 <br />435 <br />(CC 2280175-004) <br />MSD <br />mg/L <br />40.00 <br />63.8% <br />85-119 <br />435 <br />MSRPD <br />I mg/L <br />10.00 <br />1.1% <br />1 <19 <br />300.0 <br />01/13/22:200772njb <br />CCB <br />mg/l <br />0.0630 <br />0.5 <br />CCV <br />mg/l <br />20.00 <br />101% <br />90-110 <br />CCB <br />mg/l <br />0.00 <br />0.5 <br />CCV <br />mg/l <br />20.00 <br />101% <br />90-110 <br />Nitrate+ Nitrite as N <br />300.0 <br />01/13/22:20046INJB <br />Blank <br />mg/L <br />ND <br /><0.1 <br />Nitrate Nitrogen <br />300.0 <br />01/13/22:20046INJB <br />Blank <br />m <br />ND <br /><0.1 <br />Nitrite <br />300.0 <br />01/ 13/22:200461NJB <br />Blank <br />mg/L <br />ND <br />1 <0.5 <br />Page 7 of 8 <br />