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7-Eleven/Stockton 23 <br /> February 1990 <br /> The results of the groundwater sampling indicate that the <br /> distribution of dissolved hydrocarbons in the groundwater beneath <br /> the site is concentrated near the former underground-tank and <br /> pump-island locations. The surrounding domestic wells did not <br /> contain detectable levels of dissolved hydrocarbons during this <br /> reporting period. <br /> The remediation system operated by Groundwater Technology at <br /> the site consists of groundwater-extraction system. Groundwater <br /> was extracted from recovery well RW-1 at a rate of 0.6 to <br /> 2.2 gpm. <br /> FUTURE WORK <br /> In addition to the continuing regularly scheduled operation <br /> and maintenance of the remediation system and monitoring and <br /> sampling of the groundwater, additional assessment is currently <br /> being implemented. <br /> These activities include: <br /> - o Additional site characterization involving the drilling <br /> of one additional monitoring-well cluster located on <br /> site in the vicinity of the underground-storage tanks. <br /> c The wellhead elevation of MW-5 will be raised in order <br /> to permit access to the well during the winter months. <br /> o All other wellheads will be upgraded with water-tight <br /> expansion caps and new locks. <br /> o Wellhead elevations will be professionally surveyed <br /> following wellhead repairs. <br /> GROUNDWATER <br /> TECHNOLOGY,INC. <br />