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July 14, 2021 Lab ID : STK2138805 <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 06/25/21:209720AC CCB ppm 0.02 1 <br /> inc 200.7 MS ug/L 800.0 95.6% 75-125 <br /> (STK2138827-001) MSD ug/L 800.0 98.0% 75-125 <br /> MSRPD u /L 4000 2.2% :520.0 <br /> 200.7 06/25/21:209720AC CCV ppm 1.000 104% 90-110 <br /> CCB ppm 0.0007 0.02 <br /> CCV ppm 1.000 104% 90-110 <br /> CCB ppm 0.0003 0.02 <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (CH 2174364-001) Dup mg/L 0.3% 10 <br /> 2320B 07/02/21:210058AMM CCV mg/L 235.8 92.9% 90-110 <br /> CCV mg/L 235.8 92.9% 90-110 <br /> Bicarbonate 2320B (CH 2174364-001) Dup m L 0.3% 10 <br /> Carbonate 2320B (CH 2174364-001) Du m 0.0 10 <br /> Hydroxide 2320B (CH 2174364-001) Dup mg/L 0.0 10 <br /> Conductivity 2510B 07/02/21:210047sta ICB umhos/cm 0.150 I <br /> u <br /> CCV mhos/cm 1000 101% 95-105 <br /> CCV umhos/cm 1010 95-105 <br /> E.C. 2510B 07/02/21:207437sta LDup <br /> umhos/cm ND <l <br /> (STK2138687-002) umbos/cm 0.3% 5 <br /> Total Dissolved Solids(TFR) 2540CE 06/23/21:20704 1 CTL mg/L 9.1 20 <br /> mg/L 99 .0 98.2% 90-110 <br /> (VI 2144601-009) mg/L 3.5% 5 <br /> (VI 2144601-009) m 0.2% 5 <br /> Chloride 300.0 06/22/21:206981MCA Blank mg/L ND <1 <br /> LCS mg/L 25.00 95.3% 90-110 <br /> MS mg/L. 50.00 94.6% 85-121 <br /> (CH 2174387-001) MSD mg/L 50.00 97.8% 85-121 <br /> MSRPD mg/L 50.00 3.2% 5519 <br /> MS mg/L 50.00 88.1% 85-121 <br /> (STK2138688-002) MSD mg/L 50.00 90.6% 85-121 <br /> MSRPD m 50.00 1.9% 1519 <br /> 300.0 06/22/21:209560MCA CCB mg/L 0.08 1 <br /> CCV mg/L 25.00 96.1% 90-110 <br /> CCB mg/L 0.07 1 <br /> CCV mg/L 25.00 96.1% 90-110 <br /> Fluoride 300.0 06/22/21:206981MCA Blank mg/L ND <0.I <br /> LCS mg/L 2.500 99.4% 90-110 <br /> MS mg/L 5.000 100% 87-120 <br /> (CH 2174387-001) MSD mg/L 5.000 104% 87-120 <br /> MSRPD mg/L 50.00 3.6% 5516 <br /> MS mg/L 5.000 98.9% 87-120 <br /> (STK2138688-002) MSD mg/L 5.000 101% 87-120 <br /> MSRPD I m 50.00 2.3% :516 <br /> 300.0 06/22/21:209560MCA CCB mg/L 0.000 0.1 <br /> CCV mg/L 2.500 100% 90-110 <br /> CCB mg/L 0.000 0.1 <br /> CCV m 2.500 101% 90-110 <br /> Nitrate 300.0 06/22/21:206981MCA Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 94.6% 90-110 <br /> MS mg/L 40.00 95.7% 85-119 <br /> (CH 2174387-001) MSD mg/L 40.00 98.7% 85-119 <br /> MSRPD mg/L 50.00 3.0% :519 <br /> MS I mg/L 1 40.00 1 93.5% 1 85-119 <br /> Page 7 of 9 <br />