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3.0 RESULTS and DISCUSSION <br /> 3.1 Characterization of Untreated Soil and Groundwater <br /> The concentrations of GRO, metals and other secondary parameters in untreated <br /> composited soil and untreated composited groundwater are shown in Table 4. Both soil <br /> and groundwater contained GRO: 180 mg/kg in the soil and 53 mg/L in the groundwater. <br /> Neither contained Cr(VI) above the detection limit of 0.001 parts per million. <br /> Table 4. GRO and Other Parameters in Untreated Soil and Groundwater <br /> Analyte Units Untreated Untreated <br /> Soil Groundwater <br /> GRO mg/kg or mg/L 180 53 <br /> Cr(VI) mg/kg or mg/L < 0. 001 < 0 .001 <br /> Metals <br /> beryllium mg/kg or mg/L < 1 < 0 .004 <br /> sodium mg/kg or mg/L 450 240 <br /> magnesium mg/kg or mg/L 19,000 150 <br /> aluminum mg/kg or mg/L 25, 000 < 0.2 <br /> potassium mg/kg or mg/L 2 ,700 0.77 <br /> calcium mg/kg or mg/L 61400 24 <br /> vanadium mg/kg or mg/L 80 < 0. 003 <br /> chromium mg/kg or mg/L 90 < 0. 005 <br /> manganese mglkg or mg/L 580 1 .6 <br /> iron mg/kg or mg/L 34, 000 < 0.3 <br /> cobalt mg/kg or mg/L 16 < 0.005 <br /> nickel mg/kg or mg/L 130 < 0. 01 <br /> copper mg/kg or mg/L 36 < 0.01 <br /> zinc mglkg or mg/L 68 < 0. 1 <br /> arsenic mg/kg or mg/L 8.4 0. 018 <br /> selenium mg/kg or mg/L < 1 < 0. 005 <br /> molybdenum mg/kg or mg/L < 1 0. 011 <br /> silver mg/kg or mg/L < 1 < 0.005 <br /> cadmium mg/kg or mg/L < 1 < 0. 005 <br /> antimony mg/kg or mg/L < 1 < 0. 005 <br /> barium mg/kg or mg/L 190 0.4 <br /> tungsten mg/kg or mg/L < 1 0. 0088 <br /> mercury mg/kg or mg/L < 0.2 < 0.001 <br /> thallium mg/kg or mg/L < 1 0.009 <br /> lead mg/kg or mg/L 6.9 0. 0059 <br /> ORP my n. m. 134 <br /> pH n. m. 7. 18 <br /> sulfate I mg/L n. m. 1 1 <br /> n.m. = not measured <br /> PRIMA Environmental, Inc. I1 Eval of Peroxide <br /> February 8, 2007 Cambria—G Street, Davis <br />