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`°°D~SCRIRTIVE STATIST~~S, GROUND.W~TER WEt;~';28 1 CONTINUED .. <br />.; -JULY~1, 1999•JUL•Y31r2f100-, -~~' ~ <br /> <br />Parameter (mg/I) EPA Method TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE <br />MEAN VALUE STANDARD <br />DEVIA710N <br />Bromide M3001C t3 5 1 0.1 0.42 0.24 <br />Cazbw>, dissolved organic M416.1 ComMistbn 13 0 20 7.1 11.1 3.1 <br />Cation-Anion Balance % Calculation 13 10 22.9 -8.4 -0.9 7.6 <br />Sum of Anions meq/L 13 0 73.4 37.9 65.20 9.20 <br />Sum of Cations meq/L 13 0 73.6 50.3 63.66 6.74 <br />Chlor'We M325-2 Colorimetrlc (RFA) 13 0 83 53 ~ 72 ~ 8 <br />Cond @ 25C (umhos/cm) M120.1 -Meter 13 0 5390 3640 4854 478 <br />Fluoride M340.213E 12 0 0.9 0.7 0.8 0.1 <br />Hardness as CaC03 SM23408 -Calculation 13 0 1590 1060 1335 161 <br />Nirate as N, dissolved Calculation: N03N02-N02 13 2 1.4 0.05 0.32 0.35 <br />Nitrate/Nitrite as N, dissolved M353.2 Auto Cad Red 13 2 1.4 0.05 0.32 0.35 <br />Nitrite as N, dissolved M353.2 Auto Cad Red 13 12 0.1 0.005 0.032 0.029 <br />pH (units) M150.1 Electrometric 13 0 8.3 7.5 7.9 0.2 <br />Phosphorus, dissolved M366.1 Auto Aewrblc Acid 13 4 1.68 0.005 0.180 0.454 <br />Phosphorus, ortho dissolved M365.1 Auto Ascorbic Acid 13 6 1.58 0.014 0.178 0.430 <br />Total Dissolved Solids Mt60.1 - Gravlmetric 13 0 4380 3450. 3980 256 <br />Sodium Absorption Ratio in H2O USGS 11738-78 13 0 10.8 8.93 10.06 0.47 <br />Sulfate M375.3 - Gravlmetrk 13 0 2350 710 2000 423 <br />Sulfide as S SM427C -Mod Methyl Blue 13 11 0.2 0.01 0.09 0.06 <br />TDS (talc) Calculation 13 0 4480 2570 3928 510 <br />TDS ratio Raso-measuretl/calculated 13 0 1.5 0.92 1.03 0.15 <br />Temperature Degraes C (Fleld) 13 0 1 .1 10.9 14.3 2.1 <br />Gross Alpha Result (pCi/L) M9310 13 1 60 -17 11.9 20.8 <br />Gross A1phe Error (pCi/L) M9310 13 0 34 12 23.3 6.0 <br />Alpha Minimum Detectable <br />Activity (pCi/L) M9310 <br />13 <br />0 <br />21 <br />12 <br />18.0 <br />2.6 <br />Gmss Bete Result (pCUL M9310 13 2 37 -23 5.2 16.5 <br />Gross Beta Error (pCi/L) M9310 13 0 27 12 18.1 4.3 <br />Beta mimum a ec We <br />Actlvtty (pCi/L) M9310 <br />13 <br />0 <br />31 <br />17 <br />.24.3 <br />4.9 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />