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DESCRIPTIVE <br />STATISTiCS•GROUND WATER WEL1~"~1-4D,A, 1=etOX CQNTIN E - , <br />_„~ ;_}~ <br />JULY 1r199~+JUL~(31r~~2OlfOs; ,=."' 4 -~_ :~...:- <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 9 8 50 0.2 8.02 15.85 <br />Carbon, dissolved organic M4t5.1 Combustion 9 0 100 21.3 .47.7 25.6 <br />Cation-Anion Balance % Calculation 9 0 9.7 2.8 6.8 2.3 <br />Sum of Anions meq/L B 0 1110 974. 1041.63. 45.94 <br />Sum of Cations meglL 8 0 1280 1120 1196.88 63.07 <br />Chlodde M32fr2 Colorimetdc RFA) 9 0 8700 8880 7828 516 <br />Cond @ 25C (umhosfcm) M120.1 -Meter 9 0 65100 6200 52733 18227 <br />Fluoride M340.213E s 0 65 26 52.2 11.3 <br />Hardness as CaCO3 SM2340B -Calculation 7 1 91 0.5 52 37 <br />Nitrate as N, dissolvetl Calculation: NO3NO2-tJO3 9 7 0.8 0.01 0.20 0.24 <br />Nitrate/Nitrite as N, dissolved M353.2 Aulo Cad Red 9 7 0.8 0.01 0.20 0.24 <br />Nitrite as N, dissolved M353.2 Auto Cad Red s 8 1.62 0.005 0.225 0.524 <br />pH (units) M150.1 Electrometric 9 0 8.4 7.9 8.1 0.2 <br />Phosphorus, dissolved M385.1 Auto Ascorbic Acid 9 0 6.8 2.69 5.254 1.324 <br />Phosphorus, oAho dissolved M365.1 Auto Ascorbic Acid 9 0 7.76 0.647 5.424 2.104 <br />Total Dissolved Solids M160.1 - Gravtmetric 9 0 69100 54850 61939 4555 <br />Sodium Absorption Ratio in H2O USGS 11738-7B 9 3 3040 0.015 1172.23 1049.93 <br />SuHate M375.3 - Gravlmetric 9 6 100 5 35 31 <br />Sulfide as S SM427C -Mod Methyl Blue 9 4 0.5 0.09 0.21 0.15 <br />TDS (talc Calculation 9 0 66800 56600 80656 3434 <br />TDS ratio Ratio-measured/caicuiated 8 0 1.15 0.91 1.03 0.07 <br />Temperature Degrees C (Field) s 0 19 13.1 15.4 1.7 <br />Gross Alpha Result (pCi/L) M9310 9 0 710 0 184.4 256.3 <br />Gross Alpha Error (pCl/L) M9310 9 0 510 250 367.8 87.8 <br />Alpha Minimum Detectable <br />Activity (pCi/L) M9310 <br />s <br />0 <br />430 <br />285 <br />322.8 <br />47.9 <br />Gross Beta Resuk (pCffL) M93t0 9 0 490 0 229.8 208.7 <br />Gross Beta Error (pCifL) M9310 9 0 320 280 299.4 11.3 <br />Beta Muumum Dete ble <br />Actrvlty (pCilL) Ms31D <br />9 <br />0 <br />470 <br />360 <br />420.0 <br />29.2 <br />_.. <br />- <br />W ... _... ...,rip,. -;- - .. .. <br />. ~ .._ <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for aN statistical calculations. <br />