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r <br /> Beacon No. 696 - Lodi ? ' <br /> Work Plan <br /> Page No. 11 <br /> The proposed work includes drilling out and properly abandoning 5 shallow <br /> E <br /> monitoring wells at the site and drilling three approximately 70-foot soil <br /> borings at the site (approximately 10 feet into the Zone 5 saturated soil <br /> zone) and installing a 4-inch-diameter ground-wate,, monitoring well in <br /> each boring. Based on previous ground-water flow direction data, one of <br /> the proposed borings will be located downgradient of the tank site and <br /> fuel dispensers, one will be located upgradient, and one crossgradient. <br /> The proposed boring locations are presented on Plate P-2. <br /> The proposed borings and monitoring wells should be sufficient to supply <br /> �• <br /> the necessary information to evaluate the presence of hydrocarbon <br /> constituents in the deep ground water below the subject sit <br /> e. <br /> monitoring wells MW-1 through MW-5 are proposed to be properly <br /> t abandoned. Wells MW-2 through MW-5 E <br /> drilled to a total depth of 20 � <br /> feet with the screened interval from 4 feet to <br /> 20 feet below grade and <br /> t <br /> Li well MW-1 was drilled to 45.5 feet and screened from 4 feet to 4 <br /> 5.5.feet. <br /> In our opinion, these wells may act as a conduit for vertical migration of FF <br /> l t f <br /> any possible surface spills or contamination at the site, and should be <br /> f drilled out and backfilled. <br /> 3,*` J^ PROPOSED WORK' <br /> I _! <br /> r, The proposed work is recommended to evaluate whether hydrocarbon <br /> -- — constituents are preent in the deep aquifer at the site. The following - --- —, — <br /> s <br /> ! • <br /> } tasks will be performed by .an environmental consultant selected by <br /> Ultramar: <br /> IF i - <br /> i <br /> ,f' l k F SAI <br />