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r <br /> Chevron U.S.A. - Page 5 <br /> utilized to help to describe any noted contamination persistence in a vertical <br /> relationship to ground water. <br /> i , <br /> Each exploratory soil boring was completed as a ground nater monitoring <br /> well which 31lowed sampling of the ground water. The monitoring Wells were also <br /> Utilized to evaluate physical ground water conditions including ground crater <br /> depths, gradient, direction of flow, ground water quality, and possible future <br /> monitoring. PlOase refer to the site plan included as Plcte 2 for monitoring <br /> well locations. <br /> In order to accomplish the goals established for the proposed investigation, <br /> the work was <br /> separated into four distinct tasks as follows: <br /> I: Literature survey and research of readily available data regarding site <br /> site investigations; <br /> q <br /> history and use, geologic and hydrogeologic conditions, and previous <br /> �. <br /> II. Field investigationto advance exploratory soil boringsfor the purpose <br /> Of logging subsurface conditions and obtaining subsoils samples for <br /> - chemical analysis. Three ground water monitoring wells were then <br /> completed in the soil borings advanced at the subject property. The <br /> i monitoring well locations were located in areas suggested by the San <br /> Joaquin Local Health District. Dames & Moore elected to utilize the <br /> subsoil samples obtained from the soil borings advanced to install <br /> ' monitoring wells for chemical analysis . <br /> III. Laboratory analysis of M bsoil and ground water samples obtained from <br /> the field investigation to evaluate the presence and concentration of <br /> petroleum constituents contamination; <br /> xv. Prepare a written report which details the findings of olar <br /> investigation. <br /> l - <br /> DAMES T400ae <br /> s <br />