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Mr. Shawn Kelley December 8, 1999 Page 2 TECHNICAL APPROACH The technical approach to this project will be to perform the following; conduct a well survey to document wells within a 2,000 foot radius of site, evaluate potential off-site sources of contamination, sample the domestic well on the site and conduct a site assessment at the former tank pits. The site assessment will be done to ascertain whether shallow residual contaminants remain in the tank pit vicinity,check the current water quality of the well and evaluate potential off site sources of contamination. While for the site, there are two known potential off-site sources, the proximity of the domestic well to the t� � former tank pits could act as a partial conduit to the deeper aquifer and existing water quality and therefore should be checked. State and local databases for leaking underground fuel tank sites will be wost searched for listed sites within one half mile and, if indicated, assessment reports for these sites will be �' reviewed for chemical and hydro geological data that may influence on-site assessment of groundwater p and streamline the well survey task since those sites have undoubtedly been required to conduct a well 5 ¢ ',- survey also. This information will then be used to judge site conditions and form a plan for site closure w or further work if required. WORKPLAN PHASE ONE State Fund Application Assist property owner with application for reimbursement of clean up costs, consistent with Fund requirements. Well Survev Conduct a survey of regulatory databases for wells as required. In addition, review databases for listed sites within %: mile and review records of that site within 2000 feet that may contain information of other wells. Domestic Well Sampling The domestic well will be sampled using the existing pumping equipment in the well. Depth to groundwater measurements will be attempted and measured to the nearest one-one hundredth of one foot. As the purge volume is removed, a measurement of pH, electrical conductivity and temperature will be recorded prior to sampling. The sample will be carefully collected and poured into the appropriate laboratory prepared container with minimum cavitation. Each water sample will be labeled,logged onto a chain-of-custody form,and placed in a chilled ice chest. Exploratory Borings Up to six exploratory borings will be drilled at the site (Figure 2). The borings will be positioned to ascertain distribution of the contaminants in soil and groundwater at the tank pits,and two borings placed at an assumed up gradient position to the two potential off-site sources)and two borings placed in the assumed down gradient position of the two former tank pits. Drilling and well installation permits will be secured from PHS-EHD,and all utilities will be cleared prior to doing the fieldwork.