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June 19, 2019 Lab ID : STK1937486 <br /> San Joaquin Co.Environmental Health Dep Customer : 3-17919 <br /> Quality Control - Inorganic <br /> Constituent Method Date/1D Type Units Conc. QC Data DQO Note <br /> Metals <br /> Sodium 200.7 05/29/19:207975AC CCB ppm -0.007 1 <br /> inc 200.7 MS ug/L 800.0 102% 75-125 <br /> (STK1937151-001) MSD ug/L 800.0 95.8% 75-125 <br /> MSRPD I u 800.0 1 5.7% _<20.0 <br /> 200.7 05/29/19:207975AC CCV ppm 1.000 102% 90-110 <br /> CCB ppm 0.0006 0.02 <br /> CCV ppm 1.000 102% 90-110 <br /> CCB ppm -0.0001 0.02 <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (STK1937344-009) Du mg/L 0.04% 10 <br /> 2320B OS/30/19:208067AMM CCV mg/L 234.9 94.9% 90-110 <br /> CCV m 234.9 104% 90-110 <br /> Bicarbonate 2320B (STK1937344-009) Du m 0.1% 10 <br /> Carbonate 2320B (STK1937344-009) Du m 0.0 10 <br /> Hydroxide 2320B (STK1937344-009) Du mg/L 0.0 10 <br /> Conductivity 2510E 05/29/19:207879CTL ICB umhos/cm 0.18 1 <br /> ICV umhos/cm 1000 103% 95-105 <br /> CCV umhos/cm 1000 103% 95-105 <br /> E.C. 2510B 05/29/19:205955CTL Blank umhos/cm ND <1 <br /> (CH 1973826-001) Dup umhos/cm 0.08% 5 <br /> Total Dissolved Solids(TFR) 2540CE 05/28/19:205936CTL Blank mg/L991.1ND <20LCS mg/L 98.8% 90-110 <br /> (CH 1973826-001) Dup mg/L 6.0% 5 440 <br /> (CH 1973826-002) Dup m 2.5% 5 <br /> Chloride 300.0 06/10/19:206509MCA Blank mg/L ND <1 <br /> LCS mg/L 25.00 101% 90-110 <br /> MS mg/L 50.00 98.3% 85-121 <br /> (STK1937983-001) MSD mg/L 50.00 98.5% 85-121 <br /> MSRPD m 10.00 0.1% <19 <br /> 300.0 06/11/19:208645MCA CCB mg/L 0.00 1 <br /> CCV mg/L 25.00 98.4% 90-110 <br /> CCB mg/L 0.00 1 <br /> CCV m 25.00 98.3% 90-110 <br /> Fluoride 300.0 06/10/19:206509MCA Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 103% 90-110 <br /> MS mg/L 5.000 104% 87-120 <br /> (STK1937983-001) MSD mg/L 5.000 103% 87-120 <br /> MSRPD mg/L 10.00 0.7% :516 <br /> 300.0 06/11/19:208645MCA CCB mg/L 0.000 0.1 <br /> CCV mg/L 2.500 100% 90-110 <br /> CCB mgfl- 0.000 0.1 <br /> CCV m 2.500 101% 1 90-110 <br /> Sulfate 300.0 06/10/19:206509MCA Blank mg/L ND <0.5 <br /> LCS mg/L 50.00 105% 90-110 <br /> MS mg/L 100.0 101% 82-124 <br /> (STK1937983-001) MSD mg/L 100.0 102% 82-124 <br /> MSRPD m 10.00 0.8% <_23 <br /> 300.0 06111/19:208645MCA CCB mg/L 0.000 0.5 <br /> CCV mg/L 50.00 101% 90-110 <br /> CCB mg/L 0.000 0.5 <br /> CCV mg1L 50.00 102% 90-110 <br /> Nitrite as Nitrogen 450ONO2F MS mg/L 1.218 96.0% 50-150 <br /> (VI 1942434-001) MSD mg/L 1.218 97.2% 50-150 <br /> MSRPD m 1.218 1.2% :530 <br /> Page 7 of 8 <br />