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I <br />' Excavation and Sampling Report <br /> Former Mel Boludes Petroleum - Linden <br /> 8203 East Highway 26, Stockton, California <br /> 1.0. INTRODUCTION <br />' At the request of Mr Nick Bokides of Mel Bokides Petroleum, Advanced GeoEnvironmental, Inc <br /> (AGE)has prepared the enclosed Excavation and Sampling Report for the property located at 8203 <br />' East Highway 26, Stockton, California(the site) The site and the surrounding area are illustrated in <br /> Figure 1 Structures and improvements and the former underground storage tanks (USTs) are <br /> illustrated on Figure 2 <br /> An Interim Remediation Work Plan, dated 20 October 1999, for the excavation and disposal of <br /> I hydrocarbon-impacted soil, was prepared by AGE and approved by the San Joaquin County Public <br /> Health Services - Environmental Health Division (PHS-EHD) The objective of the interim <br /> remediation was to remove hydrocarbon-impacted soil from the floor and sidewalls of the former <br /> UST excavation <br /> This report has been prepared in accordance with guidelines established by the Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) for the investigation of UST sites <br /> 2.0 BACKGROUND <br /> 2 1 SITE DESCRIPTION <br /> A gasoline card-lock station and mini-mart formerly occupied the site Three USTs were removed <br /> from the site in May 1999 by Semco of Modesto, California The UST operated on the site for <br /> Iapproximately 45 years, from 1955 to 1999 <br /> The site is bounded on the north by residential properties The site is bounded on the east by Alpine <br />' Road and bounded on the south by State Highway 26 Commercial properties are directly east and <br /> west of the site <br /> I 22 <br /> UNDERGROUND STORAGE TANK REMOVAL <br /> IThree USTs and associated piping and a dispenser island were removed from the site on 07 May 1999 <br /> (Figure 2) Six samples were collected beneath the USTs, two soil samples were collected beneath <br /> the dispenser area and four laboratory composited soil samples were collected from the spoils pile <br /> Total petroleum hydrocarbons quantified as gasoline (TPH-g)was detected at concentrations up to <br /> I 17,000 milligrams per kilogram (mg/kg) beneath the northern end of the northern UST location <br /> (Tank#1) TPH-g was also detected beneath the southern end of the northern UST location at a <br /> concentration of 9,900 mg/kg Volatile aromatics (benzene, toluene, ethyl benzene and xylenes <br /> BTE&X) were detected at concentrations as high as 3,000,000 micrograms per kilogram (µg/kg) <br /> I <br />