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i <br /> a <br /> t <br /> CORRECTIVE ACTION PLAN' <br />' November 1995 <br /> Nomellini Construction Co. <br /> 1045 West Charter Way <br /> tStockton, California <br /> 1.0. INTRODUCTION AND SCOPE OF WORK <br /> In accordance with a request from Mr Dante John Nomellim of Nomellun Construction Co (NCC), <br /> Advwxed GeoEnvironmental, Inc (AGE) has prepared this Corrective Action Plan(CAP) for 1045 <br /> West Charter Way in Stockton, California (the site) Included in the CAP are results of quarterly <br /> ground water monitoring procedures performed on 14 July 1995 and a soil vapor extraction test <br /> performed on 3 August 1995 The location of the site is illustrated on Figure 1 A plan of the site' <br /> is illustrated on Figure 2 <br /> 1 The CAP is prepared in accordance with San Joaquin County Public Health Services - Environmental <br /> Health Division (PHS-EHD) and Central Valley Regional Water Quality Control Board <br />' (CVRWQCB) guidelines for investigation of underground storage tank(UST) sites <br /> 2.0. BACKGROUND <br /> 21 SITE LOCATION <br /> The site is located approximately one-half mile west of Interstate 5 on West Charter Way (State <br /> Route 4) in Stockton, California(Figure 1) Surrounding land use is light industrial/commercial A <br />' truck stop is located immediately east of the site,the property immediately west of the site is operated <br /> by Sunrise Sanitation (Figure 2) <br /> " <br /> I <br /> 2 2 UNDERGROUND STORAGE TANK REMOVAL <br /> In August 1988, two 1,000-gallon UST's were removed from the site The tanks were used for the <br /> ! <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 /> I <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 Soil samples were collected from theexcavationand screened for organnc vapors <br /> using a photo-iozuzation detector (PID) Organic vapor readings indicated that petroleum <br /> hydrocarbons were present at depths in excess of 19 feet below surface grade (bsg) Therefore, the <br />' excavation was backfilled and a site assessment was performed The tank removal and excavation <br /> procedures were described by Kleinfelder in reports dated 22 September 1988 and 14 June 1989 <br /> M1 4 <br /> It ! <br /> J I <br /> 1 ! <br />