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f r 1.0 PURPOSE AND SCOPE The purpose of this work plan is to outline and describe the methodology to be followed for drilling and sampling of three soil borings at the SME site on Shaw Road. The proposed scope of work for this project includes the following tasks: i 1. Develop a program work plan and worker health and safety plan for the site assessment investigation. 2. Three exploratory soil borings will be drilled and sampled at the site. These soil borings will be placed to verify the vertical and horizontal extent of petroleum hydrocarbon contaminated soil at the site related to the former 10,000 gallon UST. It is anticipated that two of soil borings located outside the former UST excavation will be advanced to first encountered groundwater. These soil borings will be placed in locations to supplement existing subsurface information immediately adjacent to the location of the former UST. The third soil boring will be drilled adjacent to the location of SBI and within the former UST pit. This soil boring will extend vertically to within five feet of the first groundwater surface but not extend into the groundwater. I The three soil borings will provide infill information to define the horizontal and vertical extent of the petroleum hydrocarbon soil contamination plume remaining under the former UST site and to collect groundwater.grab samples to determine if the first water bearing zone has been impacted by petroleum hydrocarbon contamination. This effort will also determine if TPH-d concentrations from excavated soil determined to have elevated TPH-d concentrations in 1,999 have had any attenuation. Soil samples will be collected at five foot intervals from the borings and screened with a calibrated field photoionization devices (PID)to determine possible.petroleum hydrocarbon content. An onsite geologist will log the soil borings and guide the site i placement of the soil borings. Mai\l)\Environmcotal9STElWorkplan%WorkplanI 1192007.wpk 2 1 l t I I