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WORK PLAN FOR EXCAVATION <br /> OF HYDROCARBON IMPACTED SOIL <br /> Country Mart <br /> 34243 South Chrisman Road- <br /> Tracy, <br /> oadTracy, California <br /> January 1995 <br /> 1.0 INTRODUCTION <br /> In accordance with a request from Mr. Pushpinder Singh, Geological Audit Services, Inc. <br /> (GeoAudit) has prepared this work plan to perform excavation procedures at 34243 South <br /> Chrisman Road in Tracy, California (the site). The location of the site is illustrated in <br /> Figure 1. A plan of the site is illustrated in Figure 2. <br /> 2.0 BACKGROUND <br /> It is our understanding that three underground storage tanks (USTs), dispenser islands and <br /> associated piping were removed from the site in January 1995. After removal procedures, <br /> soil samples were collected from beneath each UST. Samples collected from beneath the <br /> northern-most tank indicated the presence of petroleum hydrocarbon impacted soil. <br /> Soil samples were also collected from beneath the dispenser islands and piping. Two soil <br /> samples indicated that hydrocarbon impacted soil is present near the east and west dispenser <br /> islands. According to information obtained from Mr. Singh, groundwater depth in the <br /> vicinity of the site is reported to be in excess of 120 feet. <br /> 3.0 SCOPE OF WORK <br /> GeoAudit recommends excavation of the reported contamination below the former USTs. <br /> Additional soil will be removed from the northern portion of the existing UST excavation. <br /> A representative of GeoAudit will supervise and direct the excavation and will collect all <br /> necessary soil samples. <br /> The excavation dimensions are presently 30 by 20 feet and is approximately 20 feet in depth. <br /> GeoAudit proposes to extend the excavation to a depth of approximately 26 feet. Soil will <br /> also be excavated from the north, east and west sidewalls (approximately 2 to 3 feet beyond <br /> G-byol M&S.M...1- <br /> SG95-01-10760ZC0UI.TRY MART/- <br /> 1 <br />