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• <br />DATA SUMMARY QUALITY ASSURANCE/QUALITY CONTROL DUPLICATE SAMPLES CONTINUED <br />JULY 7, 1999 -MARCH 31, 2000 <br />WeII ID 20-4A 20-4A 21-46 21-46 20-9 20-9 20-4B 20-48 <br />Sample Date 8/30/99 8/30/99 12/17/99 12/17/99 11/16/99 11/16/99 9/26/99 9/26/99 <br />Sample Type Primary Duplicate Primary Duplicate Primary Duplicate Primary Duplicate <br />Completion Horizon A Groove A Groove B Groove B Groove B Groove B Groove B Groove B Groove <br />Parameter (mg/I) <br />Bromide <0.1 <0.1 <0.1 <0.1 <1 <1 <0.1 <0.1 <br />Carbon, dissolved organic 5 6 24 20 9 9 6 3 <br />Cation-Anion Balance % -3.5 -4 3.7 3.4 5.6 5.2 5 -0.3 <br />Sum of Anions meq/L 42.7 43.4 593 597 101 101 29.4 29.4 <br />Sum of Cations meg/L 39.8 40.1 639 639 113 112 32.5 29.2 <br />Chloride 250 250 1060 1360 350 340 31 32 <br />Cond @ 25C(umhos/cm) 3600 3640 38100 38500 7760 7940 2500 2500 <br />Fluoride 12 13 33 38 25 23 13.9 13.1 <br />Hardness as CaC03 35 35 48 48 43 38 <br />Nitrate as N, dissolved 0.11 0.04 0.8 <0.2 <0.2 <0.2 <0.4 <0.4 <br />Nitrate/Nitrie as N, dissolved 0.11 0.04 0.8 <0.2 <0.2 <0.2 <0.4 <0.4 <br />Nitrite as N. dissolved <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <br />pH (units) 9.0 9 8.7 8.7 7.8 7.8 8.2 8 <br />Phosphorus. dissolved 0.1 0.1 4.5 4.7 0.4 <0.1 0.04 0.04 <br />Phosphorus, ortho dissolved <0.5 <0.5 5.15 4.58 <0.3 0.006 <0.5 <0.5 <br />Total Dissolvetl Solids 2200 2180 33900 34200 5980 5930 1650 1620 <br />Sotlium Absorption Rauo in H2O 66 66.6 <0.03 <0.03 161 160 48 45.8 <br />Sulfate 80 80 190 200 <100 <100 20 20 <br />Sulfide as S 1.3 1.17 <0.2 <0.2 0.4 0.3 1.2 1.3 <br />TDS(calc) 2410 2430 33900 34100 5660 5620 1640 1560 <br />TDS ratio 0.91 0.9 1 1 1.06 1.05 1.01 1.04 <br />Temperature <br />Gross Alpha Result (pCi/L) 8.6 19 25 190 44 10 19 24 <br />Gross Alpha Error (pCi/L) 18 20 170 190 40 42 13 13 <br />Alpha Minimum Detectable <br />Activity (pCilL) <br />11 <br />11 <br />140.0 <br />160 <br />29 <br />29 <br />12 <br />11 <br />Gross Beta Result (pCi/L) 21 9.8 260 0 57 33 0 12 <br />Gross Bela Error (pCi/L) 16 16 170 200 34 38 8.2 8 <br />Beta Minimum Detectable <br />Agiviry (pCi/L) <br />17 <br />17 <br />210 <br />230 <br />43 <br />45 <br />11 <br />11 <br /> <br /> <br />Constituents reported in mgll unless otherwise notetl. <br />A symbol "<" before a number indicates that the value is not tletected. The number following "<~~ is the analytical limit of detection Dased upon the methotl <br />