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DES~RIPTIV~ STAti$TICS G~tbUND WATER: WEL4~0,10 CO~ITI ~1ER ~,~;_ <br />'`'" JULY 1; X999.-JULY 31, 2400', ~ ' '= _ ,,, .x . . <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 13 11 5 0.05 0.75 1.44 <br />Carbon, dissolved organic M415.1 Combustion 13 0 25 3 " '12.8 7.4 <br />Cation-Anion Balance % Calculation 13 3 16.3 -20.9 2.8 9.6 <br />Sum of Anions meq/L t2 0 31.5 17.4 24.52 .5.48 <br />Sum of Cations meq/L 12 0 32.2 16.3 25.88 5.36 <br />Chbride M325-2 Calorimetric (RFA) 12 0 180 33 88 . 45 <br />Cond @ 25C (umhos/cm) M120.1 -Meter t3 0 2650 1380 2045 479 <br />Fluoride M340.2 ISE 12 0 10 5.6 ~ "8.6 . " 1.1 <br />Hardness as CaC03 SM2340B -Calculation 13 0 198 82 141 43 <br />Nitrate as N, dissolved Calculation: N03N02-N02 19 9 0.2 0.02 ~ ~ 0.10 "" 0.06 <br />Nitrate/Nitrite as N, dissolved M353.2 AWO Cad Red 13 9 0.2 0.02 0.10 0.06 <br />NiVlte as N, dissolved M353.2 Auto Cad Red t3 12 0,1 0.005 0.048 ~ 0.035 <br />pH (units) M150.1 Electrometric 13 0 8.9 8.2 8.5 0.2 <br />Phosphorus, dissolved M385.1 AWO Ascorbic Acid 13 1 0.29 0.01 0.102 0.081 <br />Phosphorus, ortho dissolved M365.1 AWO Ascorbic Acid 13 4 0.349 0.0025 0.137 0.104 <br />Total Dissclved Solids M160.1 - GrevlrneVic t3 0 1780 950 1345 277 <br />Sodium Absorption Ratio in H2O USGS 11738-78 13 0 33.7 10.2 20.14 8.44 <br />Sulfate M375.3 - Oravlmetric 13 0 190 10 119 59 <br />Sulfide as S SM427C -Mod Methyl Blue 13 1 28.9 0.01 11.34 8.85 <br />DS(caly CalcWallon t3 0 9770 959 1377 .288 <br />TDS ratio Ratio - measured/caiculated 12 0 1.12 0.73 0.98 0.10 <br />Temperature Degrees C (Field) 19 0 16.7 10.3 13.4 2.3 <br />Gmss Alpha Result (pCi/L) M9310 13 0 29 0 11.7 9.4 <br />Gross Alpha Error ( CilL) M9310 13 0 18 5.5 ".11.8 3.5 <br />Alpha Minimum Detectable <br />Activity (pCi/L) M9310 <br />13 <br />0 <br />16 <br />4.5 <br />8.5 <br />3.4 <br />Gross Beta Result (p(1!L) M9310 13 0 13 0 6.2 4.4" <br />Gross Beta Error (pCi/L) M9310 13 0 18 4.2 8.9 3.9 <br />Beta 1 mum a ecta e <br />AcNvlty (pCi/L) M9310 <br />13 <br />0 <br />25.5 <br />6.2 ~ <br />12.3 <br />5.9 <br />. .. .. <br />,, ,... <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />