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<br />May 31, 2022 Lab ID : STK2235613 <br />San Joaquin Co. Environmental Health Dep Customer : 3-17919 <br />Quality Control - Inorganic <br />Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br />Metals <br />Sodium 200.7 04/26/22:205971AC CCB ppm -0.08 1 <br />Zinc 200.7 MS ug/L 800.0 96.8 % 75-125 <br /> (STK2235620-001) MSD ug/L 800.0 92.8 % 75-125 <br /> MSRPD ug/L 4000 3.9% ≤20.0 <br /> 200.7 04/26/22:205971AC CCV ppm 1.000 100 % 90-110 <br /> CCB ppm -0.0116 0.02 <br /> CCV ppm 1.000 92.9 % 90-110 <br /> CCB ppm 0.0074 0.02 <br />Wet Chem <br />Alkalinity (as CaCO3) 2320B (SP 2206741-004) Dup mg/L 0% 10 <br /> 2320B 05/05/22:206425amm CCV mg/l 235.8 97.9% 90-110 <br /> CCV mg/l 235.8 96.6% 90-110 <br />Bicarbonate 2320B (SP 2206741-004) Dup mg/L 0% 10 <br />Carbonate 2320B (SP 2206741-004) Dup mg/L 10 <br />Hydroxide 2320B (SP 2206741-004) Dup mg/L 10 <br />Conductivity 2510B 05/10/22:206650sta ICB umhos/cm 0.140 1 <br /> CCV umhos/cm 996.0 100% 95-105 <br /> CCV umhos/cm 996.0 98.0% 95-105 <br />E. C. 2510B 05/10/22:205128sta Blank umhos/cm ND <1 <br /> (SP 2206739-005) Dup umhos/cm 0.2% 5 <br />Total Dissolved Solids (TFR) 2540CE 04/26/22:204551CTL Blank mg/L ND <20 <br /> LCS mg/L 990.8 100 % 90-110 <br /> (SP 2206738-001) Dup mg/L 1.4% 5 <br /> (SP 2206738-001) Dup mg/L 0.7% 5 <br />Chloride 300.0 05/11/22:205176NJB Blank mg/L ND <1 <br /> LCS mg/L 25.00 99.8 % 90-110 <br /> MS mg/L 50.00 93.2 % 85-121 <br /> (CH 2273148-003) MSD mg/L 50.00 101 % 85-121 <br /> MSRPD mg/L 10.00 7.3% ≤19 <br /> 300.0 05/12/22:206818njb CCB mg/l 0.0880 1 <br /> CCV mg/l 25.00 99.7% 90-110 <br /> CCB mg/l 0.0920 1 <br /> CCV mg/l 25.00 99.7% 90-110 <br />Fluoride 300.0 05/11/22:205176NJB Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 101 % 90-110 <br /> MS mg/L 5.000 95.2 % 87-120 <br /> (CH 2273148-003) MSD mg/L 5.000 103 % 87-120 <br /> MSRPD mg/L 10.00 7.4% ≤16 <br /> 300.0 05/12/22:206818njb CCB mg/l 0.00 0.1 <br /> CCV mg/l 2.500 98.5% 90-110 <br /> CCB mg/l 0.00 0.1 <br /> CCV mg/l 2.500 97.8% 90-110 <br />Sulfate 300.0 05/11/22:205176NJB Blank mg/L ND <0.5 <br /> LCS mg/L 50.00 102 % 90-110 <br /> MS mg/L 100.0 95.0 % 82-124 <br /> (CH 2273148-003) MSD mg/L 100.0 102 % 82-124 <br /> MSRPD mg/L 10.00 7.3% ≤23 <br /> 300.0 05/12/22:206818njb CCB mg/l 0.172 0.5 <br /> CCV mg/l 50.00 103% 90-110 <br /> CCB mg/l 0.174 0.5 <br /> CCV mg/l 50.00 104% 90-110 <br />Nitrite as Nitrogen 4500NO2B MS mg/L 0.2284 96.2 % 1-173 <br /> (STK2235485-001) MSD mg/L 0.2284 92.2 % 1-173 <br /> MSRPD mg/L 0.2284 0.0092 ≤0.1 <br />