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August 13, 2024 <br /> Lab No. : STK2451247 <br /> San Joaquin County EHD <br /> Customer No. : 3017919 <br /> Quality Control -Wet Chem <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (STK2451294-001) Dup mg/L 4.95% 10 <br /> Bicarbonate 2320B (STK2451294-001) Dup mg/L 4.81% 10 <br /> Carbonate 2320B (STK2451294-001) Dup mg/L 0% 10 <br /> E.C. 2320B (STK2451294-001) Dup umhos/cm 1.45% 5 <br /> Hydroxide 2320B (STK2451294-001) Dup mg/L 0% 10 <br /> Solids,Total Dissolved 2540CE 08/05/2024:208651CTL Blank mg/L ND <20 <br /> LCS mg/L 991.1 98.9% 90-110 <br /> (VI 2446134-004) Dup mg/L 3.64% 5 <br /> (VI 2446134-004) Dup mg/L 1.53% 5 <br /> Chloride 300.0 08/07/2024:208895LDM Blank mg/L ND <1 <br /> LCS mg/L 25.00 106% 90-110 <br /> MS mg/L 50.00 99.3% 67-117 <br /> (VI 2445853-001) MSD mg/L 50.00 99.3% 67-117 <br /> MSRPD mg/L 0.0% :57 <br /> MS mg/L 50.00 99.4% 67-117 <br /> (CH 2476775-005) MSD mg/L 50.00 98.7% 67-117 <br /> MSRPD mg/L 0.5% !_7 <br /> Fluoride 300.0 08/07/2024:208895LDM Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 106% 90-110 <br /> MS mg/L 5.000 109% 89-111 <br /> (VI 2445853-001) MSD mg/L 5.000 109% 89-111 <br /> MSRPD mg/L 0.1% :59 <br /> MS mg/L 5.000 109% 89-111 <br /> (CH 2476775-005) MSD mg/L 5.000 108% 89-111 <br /> MSRPD mg/L 0.5% :59 <br /> Sulfate 300.0 08/07/2024:208895LDM Blank mg/L ND <0.5 <br /> LCS mg/L 50.00 107% 90-110 <br /> MS mg/L 100.0 106% 18-165 <br /> (VI 2445853-001) MSD mg/L 100.0 106% 18-165 <br /> MSRPD mg/L 0.0% :57 <br /> MS mg/L 100.0 107% 18-165 <br /> (CH 2476775-005) MSD mg/L 100.0 107% 18-165 <br /> MSRPD mg/L 0.5% :57 <br /> Nitrate 4500NO3F 08/02/2024:208584ILP Blank mg/L ND <0.4 <br /> LCS mg/L 11.22 100% 80-120 <br /> MS mg/L 5.609 3.65% 66-125 435 <br /> (VI 2446140-001) MSD mg/L 5.609 3.19% 66-125 435 <br /> MSRPD mg/L 0.3% :530.4 <br /> Nitrate+Nitrite as N 4500NO3F 08/02/2024:208584ILP Blank mg/L ND <0.4 <br /> LCS mg/L 11.22 100% 80-120 <br /> MS mg/L 5.609 3.65% 66-125 435 <br /> (VI 2446140-001) MSD mg/L 5.609 3.19% 66-125 435 <br /> MSRPD mg/L 0.3% :530.4 <br /> Nitrate Nitrogen 4500NO3F 08/02/2024:208584ILP Blank mg/L ND <0.4 <br /> LCS mg/L 11.22 100% 80-120 <br /> MS mg/L 5.609 3.65% 66-125 435 <br /> (VI 2446140-001) MSD mg/L 5.609 3.19% 66-125 435 <br /> MSRPD mg/L 0.3% 1530.4 <br /> Nitrite as Nitrogen 4500NO3F 08/02/2024:208625ILP Blank mg/L ND <0.2 <br /> LCS mg/L 1.218 105% 80-120 <br /> Page 6 of 7 Page 6 of 7 <br />