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May 15, 1990 <br /> Limited Environmental investigation alifornia AGS 30041-IW <br /> ARCO Service Station 6100,Tracy, <br /> REGIONAL GEOLOGY ANI) HYDROGEOLOGY <br /> ' underlain by the Turlock bake Formation,which are P110-Pleistocene nnnmarine <br /> 'The site�s (Rogers, T.H. 1966). To the <br /> sedirnentary deposits that range in size front grave! #o clay <br /> to Lower Pliocene nonatarine sediments. Beneath the Pliocene deposits <br /> west lies Middle <br /> Upper Cretaceous marine sedimentary rocks. The site is in an area of northwest <br /> lie <br /> southeast trending faults. <br /> uin Coun. Ground-Water Basin (California <br /> The site is in the northwestern San Joaq Joaquin Pubic Health <br /> e artmenf of Water Resources, 1988). According to the San <br /> D p <br /> thdepth to ground water is greater than 100 fee# below grade. . s <br /> Service (SJPHS), e P <br /> PROPOSED WORK <br /> To evaluate the <br /> sail for gasoline hydrocarbons beneath the site, Applied Geo5ystems will: <br /> ® a Prepare a site safety plan. <br /> permit from the SJPHS. <br /> o Obtain a drilling p #a identify <br /> a least 48 hours before drilling Y <br /> Contact Underground Service Alert at <br /> public utility lines at the site. I <br /> g or <br /> �soline-st age tank <br /> o Drilla minimum of three soil borings in the area of the g' { <br /> cavity as specified under drilling a�d sampling. <br /> �I <br /> i <br /> � 5 <br /> i <br /> y <br /> i <br /> —,gAVAad Greo.�yster s <br />