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INITIAL RELEASE DDJC Tracy <br /> TABLE 6. Contaminant Concentrations in Day Care Center Surface Soil <br /> Concentration(ppm) Number of <br /> Detections/Number Number of Detections Greater Comparison Value <br /> Contaminant <br /> Minimum Maximum' of Samples than the Comparison Value (Ppm) <br /> Benzo(a)pyrene 0.00207 0.0099 4/5 0 0.1 CREG • <br /> Arsenic 2.45 4.03 5/5 5 0.5 CREG <br /> Chromium 25.8 28.6 5/5 5 10 RMEG- ica <br /> Lead 11.1 20.3 3/5 0 no value <br /> Vanadium 28.6 33 5/5 5 6 RMEG- ica <br /> DDD 0.128 0.388 5/5 0 3 CREG <br /> DDE 0.567 3.310 5/5 2/5 2 CREG <br /> DDT 0.568 2.350 5/5 1/5 2 CREG <br /> Chlordane 0.00339 0.01386 5/5 0 0.5 CREG <br /> Dieldrin 0.0741 0.357 5/5 5 0.04 CREG <br /> Source: Montgomery Watson, 19966 <br /> Key: CREG=Cancer Risk Evaluation Guide for 1 x 104 excess risk of cancer; RMEG=Reference Dose Media Evaluation Guide for nonpica child <br /> 37 <br />