Laserfiche WebLink
W.zggans & Assocsates, Stockton, California / Project 309101 July 31, 1991 <br /> The site ' s surface is paved with asphalt and concrete materials. <br /> Surface drainage of the site appears to be southerly. Two storm <br /> drains also exist on the site. These features are presented on <br /> Plate 2 , Site Map. <br /> A concrete pump island, three fuel dispensers, and cashier shed <br /> were found to exist on the site. Wiggins and Associates reported <br /> that the site contains three underground fuel storage tanks; one <br /> diesel and two gasoline (these items are shown on Plate 2) . <br /> Wiggins and Associates indicated that the site was used as a <br /> commercial fueling station from approximately 1979 up to May, 1990 . <br /> The fueling operation is now abandoned. <br /> TMC found no obvious evidence of chemical residues on the site ' s <br /> surfaces nor on the surfaces of adjacent sites. There was no <br /> visual evidence of monitoring wells at the site or ad3acent sites . <br /> PURPOSE AND SCOPE OF STORK <br /> — The purpose of this work was to investigate for the presence of <br /> gasoline and diesel compounds in the subsurface soils at the site. <br /> The scope of work for the investigation included the following <br /> tasks : <br /> 1) Review of environmentally-related files at the SJCPHS; <br /> 2) Review of available historic aerial photographs of the site <br /> and site vicinity; <br /> T 3) Submission of a soil boring work pian to the SJCPHS; <br /> — 4) Provide for an underground survey to investigate the <br /> location and/or orientation of underground storage tanks and <br /> sub-grade utilities at the site; <br /> 5) Drilling and sampling of nine (9) soil borings; <br /> 6) Provide laboratory analysis of soil samples <br /> . TMC Environmental, Inc. / San Pablo, California 2 of 12 <br />