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Phase 11 Environmental Site h.sessment Tracy, California <br /> Home Depot, U.S.A. Inc. <br /> detectable concentrations of the compounds analyzed. Shallow composite soil sample CP-2 was <br /> found to contain 270 ug/kg of the chlorinated herbicide Dalapon (2,2-Dichloropropionic acid), <br /> which is just above the laboratory detection limit of 250 ug/kg. <br /> There are no concentration-based standards for regulation of soil containing Dalapon as a <br /> hazardous waste. The Preliminary Remedial Goal (PRG) established by USEPA Region IX for <br /> Dalapon in residential soil is 1,600 mg/kg, which exceeds the concentration detected in the <br /> sample by nearly four orders of magnitude. Therefore, the Dalapon detected in the one surficial <br /> composite soil sample is not considered to be of concern. <br /> Based on the results of the analyses, no indications of any significant impacts to soils or <br /> groundwater were found in the areas explored at the subject property. <br /> S:\whc\wp\sharedI\projects\homedepo\tracyph2.doc 3-4 July 1999 <br />