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SMTH <br /> ENVIRON IENIALTECHNOLOGIESGtiRPORATION <br /> April 11, 1996 <br /> Mr. Doug Marstall <br /> Piedmont Lumber <br /> Truss Division <br /> 7675 W. Eleventh Street <br /> Tracy, California 95376 <br /> I Subject: Phase 11 Environmental Site Assessment for Real Property Located at 7777 <br /> W. Eleventh Street, Tracy, California <br /> Dear Mr. Marstall: <br /> In accordance with the authorized Proposed Scope of Work and Estimated Budget dated <br /> April 1, 1996, Smith Environmental Technologies Corporation is submitting this summary <br /> report. This report summarizes field methodologies and analytical findings associated with <br /> the Phase 11 Environmental Site Assessment (ESA) conducted at the above referenced <br /> -;: site. <br /> Analytical results of soil samples collected at the site indicate that there is an area of <br /> petroleum contaminated surface soil adjacent and north of the concrete slab and in the i <br /> and J grid sections. Based upon field observations and analytical results of soil samples <br /> collected during the investigation, it appears that these surface spills are minor and limited, <br /> as only low concentrations of petroleum hydrocarbons were detected in two to three of <br /> .the grid sections. Since the soil adjacent to the concrete slab contains the hazardous <br /> substance benzene, Smith Environmental also recommends excavation of the contaminated <br /> soil adjacent to the concrete slab, and sampling the native soil below, after the <br /> contaminated soil is removed, <br /> Any petroleum contaminated soil will need to be properly disposed of or properly stored <br /> and remediated on-site. <br /> i <br /> 1260 Graphics Drive Modesto,CA 95351-1502 (209)579-2221 Fax(209)579-2225 <br /> '! gngineering Consulring Remediation Construction <br /> W:ICORRESPICOVLET.doc <br />