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I <br /> QUARTERLY REPORT <br /> May 1996 <br /> Nomellini Construction Company ' <br /> 1045 West Charter Way <br />' Stockton, California <br /> 1.0. INTRODUCTION <br />' In accordance with the request of Mr Dante John Nomellini, Advanced GeoEnvironmental, Inc <br /> (AGE) has prepared this Quarterly Report for the property at 1045 West Charter Way, Stockton, <br /> California The report summarizes field work performed at the site during May 1996 The location <br /> of the site is illustrated in Figure 1 - Location Map A layout of the property is depicted in Figure <br /> 2 - Site Plan <br /> This report is prepared in accordance with the San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and the Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) guidelines for the investigation of underground storage tank (UST) sites <br /> 2.0. BACKGROUND <br /> � 2 1 SITE DESCRIPTION , <br /> The site is located at 1045 W Charter Way in an industrial area of southwest Stockton, <br /> approximately one-half mile west of Interstate 5 on West Charter Way (Figure 1) The site is located <br /> in the northwest quarter of Section 10, Township 1 North, Range 6 East, Mount Diablo Base and <br /> Meridian (MDB&M) <br /> Surrounding land use is light industrial/commercial A truck stop'is located immediately east of the <br /> site, the property immediately west of the site is operated by Sunrise Sanitation (Figure 2) <br />' 2 2 UNDERGROUND STORAGE'TANK REMOVAL <br /> I In August 1988, two 1,000-gallon USTs were removed from the site The tanks were used for the <br /> storage of regular and unleaded gasoline Analytical results of soil samples collected from beneath <br /> the gasoline USTs indicated that an unauthorized release of hydrocarbons had occurred <br /> The tank area was re-excavated in November 1988 Soil was removed from the former UST area to <br /> a depth of 19 feet below surface grade (bsg) Soil samples were collected from the excavation and <br /> screened for organic vapors using a photo-ionization detector (PID) Organic vapor readings <br /> indicated that petroleum hydrocarbons were present at depths in excess of 19 feet bsg Therefore, <br /> the excavation was backfilled and a site assessment was performed The tank removal and <br />