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<br />DESCRIPTIVE STATISiYCS GROIiND WATER WELL 29.46 CONTINUED <br />JULY 1, 1999 -MARCH 31, 2000 <br /> <br />Parameter m /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 9 5 0.05 0.82 1.58 <br />Carbon, dissolved or anic M415.1 Combustion 9 1 20 5 8.2 4.9 <br />Cation~Anicn Balance o Calculation 9 5 1.8 ~6.8 -0.8 2.8 <br />Sum of Anions me /L 9 0 603 27.6 125.74 179.58 <br />Sum of Cations meq/L 9 0 609 28.6 124.96 182.04 <br />Chloride M325 2 Colorimetric (RFA) 9 0 1010 19 227 297 <br />Cond Q 25C (umhos/cm) M 120.1 ~ Meter 9 0 37200 2170 8631 10772 <br />Fluoride M340.21SE 9 0 36.8 17 28.2 5.2 <br />Hardness as CaC03 SM2340B -Calculation 9 0 44 30 38 4 <br />Nitrate as N, dissolved Calculation: N03N02-N02 9 8 0.2 0.01 0.10 0.06 <br />Nitrate/Nitrite as N, dissolved M353.2 Auto Cad Red 9 8 0.2 0.01 0.10 0.06 <br />Nitrite as N, dissolved M353.2 Auto Cad Red 9 9 0.1 0.005 0.048 0.035 <br />pH (units) M150.1 Electrometric 9 0 8.7 7.4 7.9 0.4 <br />Phosphorus, dissolved M365.1 Auto Ascorbic Acid 9 0 4.7 0.02 0.619 1.532 <br />Phosphorus, ortho dissolved M365.1 Auto Ascorbic Acid 9 3 4.64 0.05 0.706 1.493 <br />Total Dissolved Solids M160.1 -Gravimetric 9 0 33600 1490 6809 10075 <br />Sodium Absorption Ratio in H2O USGS 11738-78 9 0 1000 51.4 202.49 299.74 <br />Sulfate M375.3 ~ Gravimetric 9 7 160 5 23 51 <br />Sulfide as S SM427C Mod Meth I Blue 9 7 1 0.08 0.20 0.30 <br />TDS (talc) Calculation 9 0 35600 1510 7051 10732 <br />TDS ratio Ratio measured/calculated 9 0 1.03 0.93 0.99 0.04 <br />Temperature Degrees C (Field) 9 0 15.3 8.7 11.8 2.3 <br />Gross Alpha Result (pCi/L) M9310 9 0 48 0 17.8 16.7 <br />Gross Alpha Error (pCi/L) M9310 9 0 110 9.9 33.2 30.1 <br />p a inimum a ec a e c rvi y <br />(pCi/L) M9310 <br />9 <br />0 <br />150 <br />8 <br />33.6 <br />43.9 <br />Gross Beta Result (pCi/L) M9310 9 0 240 0 42.2 75.9 <br />Gross Beta Error (pCi/L) M9310 9 0 170 10 36.0 50.5 <br />e a inimum a ec a e c rvl y <br />(pCi/L) M9310 <br />9 <br />0 <br />220 <br />11 <br />47.7 <br />64.9 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />