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Revised Remedial Action Work Plan <br /> April 1997 <br /> NOnIELLINI CONSTRUCTION COMPANY <br /> 1045 West Charter Way <br /> Stockton , California <br /> 1 . 0. INTRODUCTION <br /> In accordance with the request of Nomellini Construction Company, Advanced GeoEnvironmental , <br /> Inc. (AGE) has prepared this revised Remedial Action Work Plan (RAWP) detailing design of a <br /> modified remediation system for the `bore" petroleum hydrocarbon-impacted area at 1045 West <br /> Charter Way, Stockton, California (the site) . The location of the site is illustrated on Figure ( - <br /> Location Afap. A plan of the site is illustrated on Figure 2 - Site Phan. <br /> The revised RAWP is prepared in response to a request by the San Joaquin County Public Health <br /> Services - Environmental Health Division (PHS -EHD) and in accordance with Central Valley <br /> Regional Water Quality Control Board (CVRWQCB ) guidelines for corrective action at leaking <br /> underground storage tank sites . <br /> 2. 0, BACKGROUND <br /> 2 . 1 . SITE LOCATION AND DESCRIPTION <br /> The site is located at 1045 West Charter Way in an industrial area of southwest Stockton, <br /> approximately one-half mile west of Interstate 5 along West Charter Way (Figure 1 ). The site is <br /> further described as being located northwest of Section 10, Township I North, Range 6 East, Mount <br /> Diablo Base and Meridian. <br /> The site is occupied by a rectangular warehouse building structure utilized by various industrial and <br /> commercial businesses. Surrounding land use is light industrial/commercial . A truck stop is located <br /> immediately east of the site; the property immediately west of the site is operated by Sunrise <br /> Sanitation (Figure 2) . <br /> 2 . 2. PREVIOUS INVESTIGATIONS <br /> The following is a brief summary of previous investigation for underground storage tanks (USTs) <br /> formerly located at the site: <br /> In August 1988, two 1 ,000-gallon gasoline USTs were removed from the site. Following tank <br /> removal, soil samples were collected beneath both tanks and submitted to a state certified <br /> laboratory for analysis of petroleum hydrocarbons. Analytical results of soil samples collected _ <br /> from beneath the USTs indicated that substantial petroleum hydrocarbon concentrations were <br />