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F-88224}^.„ <br /> Page 2 <br /> locations 'ar presented on the attached site plan. The number and <br /> locations -of'the proposed_borings may vary slightly depending on the <br /> conditions ab� <br /> served at the site during the site reconnaissance planned <br /> I <br /> for the weef June 27, 1988. Representative soil samples will be <br /> obtained at s ],ected depths and monitored for organic va o <br /> g p rs using an <br /> H-Nu photoionization detector. Based on our field observations, <br /> selected soil samples will be submitted to EPA-.Multitech Laboratories <br /> for chemical analyses. Also, during our exploration, we will acquire a <br /> water sample from an existing monitoring well which is located at the <br /> site. Previous analyses of water samples from this well have indicated <br /> _ zcated <br /> no hydrocarbon presence. <br /> SITE CONDITIONS ` <br /> The site of the proposed assessment is located in Township 1 1 <br /> I <br /> North, Range G East, Section 8 -(Mount Diablo Base-and Meridian) in <br /> -Stockton, San ioaqui.n County, California. The Assessor Parcel N <br /> umber is <br /> recorded as 161-030-02. ' <br /> The prper is situated along the southern bank of the San <br /> Joaquin River,' on the eastern .portion of Rough and Ready Island. <br /> Elevations at 1G.S. <br /> the site range from approximately 8 to 13 feet above mean <br /> sea level (U.Sdatum) , Drainage at the site is redo; predominantly by <br /> sheet wash to the south. <br /> The site is vacant and undeveloped. Existing on-site structures F <br /> consist of a ground water monitoring well (MW-19) and an abandoned power <br /> Pole, the locations of which are shown on the site plan. The well was <br /> f , <br />