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• IN'T'ERIM REMEDIATION WORD PLAN <br /> May 1996 <br /> Lockeford Beacon <br /> 13975 E. Highway SS <br /> Lockeford, California <br /> 1.0. E14TRO SUCTION <br /> At the request of Mr Robert Phillips,AdYanced GeoEnvironmental, Inc (AGE) has prepared this <br /> Interim Work Plan for installation of a soil vapor extraction (SVE) system at 13975 E Highway 88 <br /> in Lockeford, California The location of the site is illustrated in Figure 1 -Location Map A plan <br /> of the site is illustrated in Figure 2 - Site Plan <br /> This work plan is prepared in accordance with San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and Central Valley Regional Water Quality Control <br /> Board guidelines for the investigation of underground storage tank (UST) sites <br /> 2.0. BACKGROUND <br /> • <br /> 21 SITE DESCRIPTION <br /> The site is located in Lockeford, California, a small rural community in northern San Joaquin County, <br /> at the northwest corner of the intersection of State Highway 88 and Cherry Street (Figure 1) The <br /> site currently operates as a gasoline station and mini mart The property is occupied by a single <br /> building, canopy and two filling islands Four USTs are presently located on the northern portion of <br /> the property (Figure 2) <br /> According to an assessment report by Applied GeoSystems (AGS) of Sacramento, two dry wells <br /> (French drains) were located on the property These wells provided drainage for run-off and wash- <br /> down from the product dispenser area It was reported by AGS that the dry wells were destroyed in <br /> July 1987 <br /> 22 SOIL BORING AND MONITORING WELL INSTALLATION <br /> Four ground water monitoring wells (MW-1 through MW-4) were installed by AGS in June of 1987 <br /> to investigate soil and ground water integrity Total volatile hydrocarbons (TVH) were detected in <br /> soil samples from MW-2 at concentrations of up to 50 51 parts per million Less than 1 ppm TVH <br /> were detected in soil samples from MW-1 and MW-3 <br /> In January 1994, four soil borings were drilled at the site by Geological Audit Services, Inc <br /> . (GeoAudit) Two of the borings were completed as monitoring wells MW-5 and MW-6 to a depth <br />