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October 14, 2022 <br /> San Joaquin County EHD Lab om : 30179128i7 <br /> ' Customer No. ; 3017919 <br /> Quality Control - Wet Chem <br /> SEEM son <br /> Wet Chem <br /> Alkalinity (as CaCO3) 2320B 09/1912022 :210610AMM ND mg/L 82700000 10 <br /> Bicarbonate 2320B (SP 2214419-001) Dup mg/L 0% 10 <br /> E . C. 2320B (SP 2214419-001) Dup umhos/cm 0,2% 5 <br /> Solids, Total Dissolved 2540CE 09/12/2022 :210353CTL Blank mg/L ND <20 <br /> LCS mg/L 990.8 99.7 % 90-110 <br /> (STK2252817-001 ) Dup mg/L 1 .0% 5 <br /> (STK2252817-001 ) Dup mg/L 1 .8% 5 <br /> Chloride 300.0 09/09/2022 : 210269LDM Blank mg/L ND < 1 <br /> LCS mg/L 25.00 99,5 % 90-110 <br /> MS mg/L 50.00 95,3 % 85- 121 <br /> (VI 2246203-001) MSD mg/L 50,00 101 % 85-121 <br /> MSRPD mg/L 50.00 4,9% 1519 <br /> MS mg/l, 50 .00 92,9 % 85-121 <br /> (VI 2246203-005) MSD mg/L 50,00 100 % 85-121 <br /> MSRPD mg/L 5 ,000 6,0% 1519 <br /> Fluoride 300. 0 09/09/2022 :210269LDM Blank mg/L ND <0. 1 <br /> LCS mg/L 2 ,500 103 % 90-110 <br /> MS mg/L 5.000 101 % 87-120 <br /> (VI 2246203-001 ) MSD mg/L 5.000 107 % 87-120 <br /> MSRPD mg/L 50.00 6 , 1 % 516 <br /> MS mg/L 5.000 98,5 % 87-120 <br /> (VI 2246203-005) MSD mg/L 5.000 106 % 87-120 <br /> MSRPD mg/L 5.000 7 .4% 1516 <br /> Nitrate 300.0 09/09/2022 : 210269LDM Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 102 % 90-110 <br /> MS mg/L 40.00 91 .8 % 85-119 <br /> (VI 2246203-001 ) MSD mg/L 40.00 97,4 % 85-119 <br /> MSRPD mg/L 50.00 3.7% 15_ 19 <br /> MS mg/L 40.00 89,4 % 85-119 <br /> (VI 2246203-005) MSD mg/l, 40.00 96,2 % 85-119 <br /> MSRPD mg/L 5 .000 4,5% 1519 <br /> Nitrate + Nitrite as N 300.0 09/09/2022:210269LDM Blank mg/L ND <0.4 <br /> LCS mg/l, 20,00 102 % 90- 110 <br /> MS mg/L 40.00 91 ,8 % 85-119 <br /> (VI 2246203-001 ) MSD mg/L 40,00 97.4 % 85-119 <br /> MSRPD mg/L 50.00 3.7% 15_ 19 <br /> MS mg/L 40.00 89,4 % 85-119 <br /> (VI 2246203-005) MSD mg/L 40.00 96,2 % II5-119 <br /> MSRPD ing/L 5.000 4.5% 1519 <br /> Nitrate Nitrogen 300.0 09/09/2022:210269LDM Blank mg/L ND <0A <br /> LCS mg/L 20.00 102 % 90-110 <br /> MS mg/L 40.00 91 ,8 % 85-119 <br /> (VI 2246203-001 ) MSD mg/L 40,00 97 ,4 % 85-119 <br /> MSRPD mg/L 50,00 3.7% _1519 <br /> MS mg/L 40.00 89,4 % 85-119 <br /> (VI 2246203-005) MSD mg/L 40.00 96,2 % 85-119 <br /> MSRPD mg/L 5.000 4,5% 519 <br /> Nitrite as Nitrogen 300.0 09/090022 :2102691,DM Blank mg/L ND <0A <br /> LCS mg/L 15,00 101 % 90-110 <br /> MS mg/L 30.00 99, 0 % 74-126 <br /> Page 7 of 8 Page 7 of 8 <br />