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January 26, 2024 <br /> Lab No. : STK2430923 <br /> San Joaquin County EHD <br /> Customer No. : 3017919 <br /> Quality Control -Wet Chem <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (VI 2440486-003) Dup mg/L 1% 10 <br /> Bicarbonate 2320B (VI 2440486-003) Dup mg/L 0.9% 10 <br /> E.C. 2320B (VI 2440486-003) Dup umhos/cm 0.5% 5 <br /> Solids,Total Dissolved 2540CE 01/18/2024:200701CTL Blank mg/L ND <20 <br /> LCS mg/L 992.0 101% 90-110 <br /> (CC 2480232-001) Dup mg/L 0.2% 5 <br /> (CC 2480232-001) Dup mg/L 1.60% 5 <br /> Chloride 300.0 01/17/2024:200698LDM Blank mg/L ND <1 <br /> LCS mg/L 25.00 97.5% 90-110 <br /> MS mg/L 50.00 86.4% 67-117 <br /> (SP 2400780-001) MSD mg/L 50.00 86.4% 67-117 <br /> MSRPD mg/L 0.0% <_7 <br /> MS mg/L 50.00 88.9% 67-117 <br /> (SP 2400784-001) MSD mg/L 50.00 89.0% 67-117 <br /> MSRPD mg/L 0.1% :57 <br /> Fluoride 300.0 01/17/2024:200698LDM Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 97.8% 90-110 <br /> MS mg/L 5.000 101% 89-111 <br /> (SP 2400780-001) MSD mg/L 5.000 100% 89-111 <br /> MSRPD mg/L 0.3% :59 <br /> MS mg/L 5.000 103% 89-111 <br /> (SP 2400784-001) MSD mg/L 5.000 103% 89-111 <br /> MSRPD mg/L 0.1% :59 <br /> Nitrate 300.0 01/17/2024:20069BLDM Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 104% 90-110 <br /> MS mg/L 40.00 106% 86-112 <br /> (SP 2400780-001) MSD mg/L 40.00 107% 86-112 <br /> MSRPD mg/L 0.0% :57 <br /> MS mg/L 40.00 109% 86-112 <br /> (SP 2400784-001) MSD mg/L 40.00 109% 86-112 <br /> MSRPD mg/L 0.0% <_7 <br /> Nitrate+Nitrite as N 300.0 01/17/2024:200698LDM Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 104% 90-110 <br /> MS mg/L 40.00 106% 86-112 <br /> (SP 2400780-001) MSD mg/L 40.00 107% 86-112 <br /> MSRPD mg/L 0.0% :57 <br /> MS mg/L 40.00 109% 86-112 <br /> (SP 2400784-001) MSD mg/L 40.00 109% 86-112 <br /> MSRPD mg/L 0.0% <_7 <br /> Nitrate Nitrogen 300.0 01/17/2024:200698LDM Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 104% 90-110 <br /> MS mg/L 40.00 106% 86-112 <br /> (SP 2400780-001) MSD mg/L 40.00 107% 86-112 <br /> MSRPD mg/L 0.0% :57 <br /> MS mg/L 40.00 109% 86-112 <br /> (SP 2400784-001) MSD mg/L 40.00 109% 86-112 <br /> MSRPD mg/L 0.0% :57 <br /> Nitrite as Nitrogen 300.0 01/17/2024:200698LDM Blank mg/L ND <0.4 <br /> LCS mg/L 15.00 98.1% 90-110 <br /> MS mg/L 30.00 100% 88-111 <br /> Page 6 of 7 Page 6 of 7 <br />