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.;f4 -n- D~$GRIB7IVE S'[ATISTIGS (~ROUND,WATER;~(YE4#.`2O-8 C TiN }}fib t„~ <br />w .._ i S. n~. F::, tt,fk,a_~x ~'r ~`S a .X'k' a<~. <br />. _ JULY 1,'1999-JULY31,~OOO`. .. <x; __ ;~, <br /> <br />Parameter (mgll) EPA Method TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE <br />MEAN VALUE STANDARD <br />DEVIATION <br />Bromide M3001C t3 11 0.625 0.05 0.21 0.22 <br />Carbon, dissolved orgaMc M415.1 Combustion 13 1 6 2 4.0 1.3 <br />Cation-Anion Balance °/ Calculation 13 7 11 -7.6 -0.5 4.8 <br />Sum of Anbns meq/L t3 0 73.3 42.9 58.84 ' 7.43 <br />Sum of Cations meq/L t3 0 65.1 39.3 58.13 7.01 <br />Chloride M325.2 Colorimeldc (RFA) 13 0 126 73 104 ~ 15 <br />Cond @ 25C (umhos/cm) Mt20.1 -Meter 13 0 6390 3510 4683 757 <br />Fluoride M340.2ISE 13 0 7 3.9 ~5.7 0.8 <br />Hardness as CaC03 $M2340B -Calculation t3 0 469 235.5 307 52 <br />Nitrate as N, dissolved Calculation: tJO3NO2-NO2 13 11 0.4 0.01 - ~ 0.13 0.12 <br />NitratelNitrite as N, dissolved M353.2 Auto Cad Red 13 11 0.4 0.01 0.13 0.12 <br />Nitrite es N, disaoWed M353.2 Auto Cad Red 13 13 0.1 0.005 0.063 0.032 <br />pH (units) Mt50.1 Electrometric 13 0 8 7.6 7.8 0.1 <br />Phosphorus, dissolved M365. t Auto Ascdrbic Acid 13 2 0.2 0.025 0.085 0.041 <br />Phosphorus, ortho dissolved M365.1 Aulo Ascorbic Acid 13 5 0.25 0.01 0.118 0.085 <br />Total Dissolved Solids M16D.t - Grevimetric 73 0 3730 2160. 3155 407 <br />Sodium Absorption Ratio in H2O USGS 11738-78 13 0 34.3 13.7 29.59 5.27 <br />Sulfate M375.3 - Gravlmetrlc 13 0 310 120 156 55 <br />Sulfide as S SM427C -Mod Methyl Blue 13 0 15 ~ 1.9 9.08 3.54 <br />TDS (calc Calculation t3 0 3670 2230 3130 365 <br />TDS ratio Ratio-measured/calculated 13 0 1.12 0.89 1.01 0.06 <br />Temperature Degrees C (Field) 13 0 20 15 16.7 1.6 <br />Gross Alpha Result (pCi/L) M93t0 13 0 45 0 15.4 14.4 <br />Gross Alpha Error (pCi/L) Mg370 13 0 32 12 20.5 5.7 <br />Alpha Minimum Detectable <br />Activity (pCi/L) M9310 <br />t3 <br />0 <br />20 <br />12 <br />17.6 <br />2.7 <br />Gross Beta Result (pCUL) M93to 13 0 41 0 16.1 14.1 <br />Gross Beta Error (pCi/L) M9310 t3 0 26 12 18.4 4.0 <br />Beta inimum ecta e <br />ctNity (pGlL) M93t0 <br />13 <br />0 <br />31 <br />16 , <br />25.2 <br />5.3 <br /> <br />Analy[e concentrations reported below the detection limit are set equal [o one halt the detection limit for an statisncal calculations. <br />