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Page b <br /> 3. Field Activities <br /> r, <br /> 3.2 Monitor Well Abandonment <br /> Artesian proposes to abandon monitor wells MW-1 and MW-2 (Figure 2). Both wells are <br /> in the area to be excavated. The proposed method of abandonment includes destruction <br /> using a pressure grout from the bottom of the wells approximately 25 feet below ground <br /> surface(bgs)to about 8 feet bgs. The grout will be a solid pressure grout which will be <br /> forced into the bottom of the pvc well casing with a grout pump. The grout will be a neat <br /> cement slurry, Water displaced by the grout will be contained and collected for disposal. <br /> Above 8 feet, the wells will be left open and will be broken off by a backhoe during <br /> underground tank removal activities _ <br /> �_r_ <br /> 3.2 Soil Excavation <br /> Soil containing hydrocarbons above the soil-groundwater interface,estimated to be <br /> _. approximately 14 feet below ground surface(documented in the Artesian July, 1991 report) <br /> will be removed using a backhoe. The following measures will be taken to prevent any <br /> water quality impacts during soil remediation: 1) soils below the groundwater table will not <br /> be excavated, and 2) monitor well MW-2 in the area to be excavated will be properly <br /> abandoned prior to excavation to prevent further deterioration of groundwater quality. <br /> An estimated 800 cubic yards of soil will be removed during soil excavation activities: 15 <br /> feet by 7 feet from 0 to 7 feet bgs and two additional areas: one near the pump islands: 50 <br /> feet by 40 feet from 7 to 14 feet below ground surface and the other near the tank pit: 60 <br /> feet by 15 feet from 7 to 14 feet below ground surface(Figures 3 and 4). Considering . <br /> expansion of the soil on the surface, the volume of soil removed could be up to m-o or <br /> three times the volume removed from the excavation.? <br /> The soils to be excavated will contain the majority of the hydrocarbons in the vapor phase. <br /> The soil will be screened and segregated in the field using a photo-ionization detector <br /> (PID). Artesian will document the soil removal process with field reports and <br />