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<br /> <br />Ai:$~T2#Pi'!~ STATISTICS GROUND V1tATER WE1.R 21-3A CONTIN~Ei3 . <br />JURY 1, 1999 -.TUNE 30, 2800 <br /> <br />Parameter (mg/I) EPA Method TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE <br />MEAN VALUE STANDARD <br />DEVIATION <br />Bromide M3001C t2 12 5 0.2 1.73 1.99 <br />Carbon, dissolved organic M415.1 Combustion 12 0 30 16 22.8 5.0 <br />Cation-Anion Balance % Calculation 12 5 6.2 -3.4 0.8 3.0 <br />Sum of Anions meq/L 11 0 637 0 324.00 136.64 <br />Sum of Cations meq/L 11 0 622 0 327.92 133.28 <br />Chloride M32S2 Colorimetric (RFA) 12 0 1090 630 728 125 <br />Cond @ 25C (umhos/cm) M120.1 -Meter t2 0 36000 2290 22241 7347 <br />Fluoride M340.21SE 12 0 56 1.4 28.3 13.3 <br />Hardness as CaC03 SM2340B -Calculation 12 0 65 12 31 15 <br />Nitrate as N, dissolved Calculation: N03N02-N02 12 8 11.2 0.01 1.07 3.19 <br />Nitrate/Nitrite as N, dissolved M353.2 Auto Cad Red 12 8 11.2 0.01 1.07 3.19 <br />Nitrite as N, dissolved M353.2 Auto Cad Red 12 11 0.3 0.005 0.062 0.080 <br />pH (units) M150.1 Electrometric 12 0 9.7 7.9 9.2 0.6 <br />Phosphorus, dissolved M365.1 Auto Ascorbic Acid 12 0 2.8 0.24 1.758 0.773 <br />Phosphorus, odho dissolved M365.1 Auto Ascorbic Acid 12 0 2.96 0.9 1.862 0.709 <br />Total Dissolved Solids M160.1 -Gravimetric 12 0 34700 5150 18817 6331 <br />Sodium Absorption Ratio in H2o USGS 11736-78 12 0 922 506 668.17 123.67 <br />Sulfate M375.3 •Gravimetric 12 1 410 5 270 130 <br />Sulfide as S SM427C -Mod Methyl Blue 12 7 0.6 0.01 0.16 0.17 <br />TDS (talc) Calculation 12 0 33400 18800 21308 3887 <br />TDS ratio Raiio ~ measured/calculated 11 0 1.04 0 0.80 0.32 <br />Temperature Degrees C (Field) 12 0 20.1 8 13.3 3.6 <br />Gross Alpha Result (pCi/L) M9310 12 1 240 -25 74.3 94.1 <br />Gross Alpha Error (pCi/L) M9310 12 0 220 40 118.1 47.1 <br />Alpha Minimum Detectable <br />Activity (pCi/L) M93t0 <br />12 <br />0 <br />180 <br />31 <br />89.4 <br />36.9 <br />Gross Beta Result (pCi/L) M9310 12 0 260 0 83.1 83.0 <br />Grass Beta Error (pCi/L) M9310 12 0 140 28 89.6 31.4 <br />Beta Minimum Detectable <br />Activity (pCi/L) Mg3t0 <br />t2 <br />0 <br />190 <br />44 <br />115.7 <br />36.9 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />