Laserfiche WebLink
Additional Phase I and Phas, Environmental Site Assessments Tracy, California <br /> Home Depot, U.S.A. Inc. <br /> including spilled paint cans was observed on the ground surface south of the ditch and north of <br /> Grant Line Road. <br /> The Phase U sampling program consisted of advancing four direct push borings to a maximum <br /> depth of 16 feet below ground surface (bgs), sampling of soil and groundwater encountered <br /> within the borings, and collecting composite samples of surficial soils in three areas of the <br /> property. <br /> The samples were analyzed for the following constituents: <br /> • Four soil samples from the borings were analyzed for total petroleum hydrocarbons as diesel <br /> and motor oil (TPH-d). <br /> • Four groundwater grab samples were analyzed for total petroleum hydrocarbons as gasoline <br /> (TPH-g), TPH-d and for volatile organic compounds (VOCs). <br /> • Three surface soil composite samples were analyzed for organophosphate pesticides and for <br /> chlorinated pesticides and herbicides. <br /> Based on the additional Phase I and Phase U assessment results, WESTON presents the <br /> following conclusions: <br /> • No significant environmental hazards were observed on the subject property or on adjacent <br /> properties. <br /> • Although a significant number of rodent burrows were observed on the subject property, no <br /> indications of the burrowing owl, a Federal and California Species of Concern, were <br /> observed by the WESTON representative. Home Depot separately commissioned a biological <br /> survey firm to more definitively evaluate the possible presence of burrowing owls. <br /> • No physical indication (i.e., appearance or odor) of environmental impacts was observed in <br /> any of the soils or groundwater sampled at the property. <br /> • Analyses of the subsurface soil and groundwater grab samples for total petroleum <br /> hydrocarbons in the diesel and motor oil ranges (TPH-d) and for volatile organic compounds <br /> (VOCs) yielded non-detect results. Therefore, no indications of impacts to subsurface soils or <br /> groundwater from petroleum hydrocarbons or VOCs were found in the study area, including <br /> one boring situated near the Chevron pipeline. <br /> • Analyses for organochlorine pesticides, organophosphate pesticides, and chlorinated <br /> herbicides in surficial soil composite samples yielded non-detect results. Therefore, no <br /> indications of any impacts to soils from these types of pesticides and herbicides were found <br /> in the study area. <br /> G:home\clarkeb\projects\homedepo\tracy\addp I&2.doc ES-2 October 2000 <br />