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DESCi~IP,TIVE $TATISTI~S GROUNDWATER WEI,1.21:3D CbNTiNUED yY = " <br /> <br />_. <br />;, : . <br />.. :. <br />JULY 1, 199&'=JULY.31, 2000, ~-~ <br /> <br />Parameter (mg/I) EPA Method TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE <br />MEAN VALUE STANDARD <br />DEVIATION <br />Bromide M3001C t3 13 5 0.2 2.05 1.87 <br />Carbon, tlissolved organic M415.1 Combustion 13 0 54 17 2$.9 10.3 <br />Cation-Anion Balance % Calculation 13 4 3.3 -3.2 0.9 2.1 <br />Sum of Anions meq/L t2 0 731 828 675.17 32.53 <br />Sum of Cations meq/L t2 0 719.5 671 684.54 14.33 <br />Chloride M325-2 Colorimetdc (RFA) 13 0 1460 1160. 1335 71 <br />Cond Q 25C (umhos/cm) M120.t -Meter 13 0 41900 31500 40719 2783 <br />fluoride M340.21SE t3 0 71 43 58.6 8.0 <br />Hardness as CaC03 SM23406 -Calculation 13 0 152 25 57 31 <br />Nitrate as N, dissolved Calculatiorr. N03N02-N02 13 12 0.4 0.05 0.13 0.09 <br />Nitrate/Nitrite as N, dissolved M353.2 Auto Cad Red 13 12 0.4 0.05 0.13 0.09 <br />Nitrite as N, dissolved M353.2 Auto Cad Red 13 12 1.92 0.005 0.210 0.517 <br />pH (units) M150.1 Electrometric 13 0 8.5 7.9 8.2 0.2 <br />Phosphorus, dissolved M36S, t Auto Ascorbic Acld 13 0 5.3 0.5 3.124 1.591 <br />Phosphorus, ortho dissolved M365.1 Auto Ascorbic Acid 13 0 5.2 0.9 3.477 1.145 <br />Total DlssoNed Solids M160.t - Oravlmetric 13 0 38600 36950 3806'9 706 <br />Sodium Absorptbn Ratio in H2O USGS 11738-76 t3 0 1380 575 969.15 181.52 <br />Sulfate M375.3 - Gravlmetric t3 ~ 9 50 5 .34 20 <br />Sulfide as S SM427C -Mod Methyl Blue 13 4 0.5 0.055 0.21 0.14 <br />TDS (talc Calculation t3 0` 37800 34&00 36212 " " 1059 <br />TDS ratio Ratio-measured/calculatetl 12 0 1.11 0.965 1.06 0.04 <br />Temperature Degrees C (Field) t3 0 17.1 9.7 13.1 2.6. <br />Gross Alpha Result (pCi/L) M9310 13 0 540 0 111.4 161.3 <br />Grass Alpha Error (pCilL) M9310 13 0 480 120 228.1 102.8 <br />Alpha Minimum Detectable <br />Activity (pCi/L) M9310 <br />13 <br />0 <br />360 <br />130 <br />196.5 <br />71.9 <br />Gross Beta Result (pCifl) M9310 13 0 810 0 153.3 168.4 <br />Gross Beta Emor (pCi/L) M9310 13 0 330 140 196.5 57.9 <br />Beta Minimum etecta le <br />ctivlty (pCi/L) M93t0 <br />t3 <br />0 <br />440 <br />160 <br />288.1 <br />81.5 <br />~ .~Yr <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />