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Lus H GEOSCIENC r ES I N C O R P O R A T E D GEOLOGICAL AND ENVIRONMENTAL SERVICES January 13, 2000 9015-025 Mr. Ron Valladao Resource Capital 7509 Madison Avenue, Suite 111 Citrus Heights, California 95610 Subject: Executive Summary Subsurface Investigation 315 Enterprise Place Tracy, California Dear Mr. Valladao: At your request, Lush Geosciences, Inc. performed.,'a subsurface investigation on the property located at 315 Enterprise Place in Tracy, California(Site). The purpose of the investigation was to provide you with information regarding the extent of contamination on the Site due to the underground diesel storage tank removed from the former J.B. trucking f site located adjacent to and west of the subject property. The former tank was removed in 1997; soil samples showed 6,200 ppm diesel and groundwater samples showed 31 ppm diesel. Our previous review indicated that no further action had been taken by the adjacent property owners or by state and local agencies to assess ornitigate the detected contamination. The purpose of this work was to provide yofu with information regarding the ' concentrations of diesel fuel and lateral extent of the contaminants in the subsurface on the subject property from the former tank. SUBSURFACE SAMPLING On October 25 and November 24 1999,Lush Geosciences, Inc. excavated trenches to a maximum depth of approximately 10 to 12 ft to assess soil and groundwater conditions at the site. The trenches were located in near proximity to the former tank, based on sketch maps from the adjoining properly. Soil samples were collected from depths of 8 ft and 10 ft, and corresponded to discolored zones in native soil with a diesel odor. Groundwater was 3560 BUSINESS DRIVE, SUITE 120 • SACRAMENTO, CA 95820 - (916) 737-9294 • FAX (916) 737-9298 t