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7--Eleven/Stockton 21 <br /> February 1994 <br /> These data tabulations indicate that the majority of monitoring <br /> and pumping wells do not contain detectable dissolved <br /> hydrocarbons. In addition, these data suggest that dissolved <br /> hydrocarbons have not significantly impacted any nearby domestic <br /> wells. <br /> During this reporting period, seven groundwater monitoring <br /> wells could not be monitored or sampled. Prolonged decline in <br /> groundwater levels had caused MW-2, MW-3, MW-4, MW-5, and MW-12 <br /> to go dry. Monitoring well MW-6 is also no longer in service, <br /> since it was abandoned in September 1986 due to the reconstruc- <br /> tion of Thornton Road. Monitoring well MW-8 is temporarily out <br /> of service because sampling equipment has obstructed it. Every <br /> effort is being made to correct this problem. <br /> REMEDIATION SYSTEMS <br /> The remediation system currently operated by Groundwater <br /> Technology at the site consists of a groundwater-extraction <br /> system. The groundwater-extraction system consists of a pumping <br /> well, designed to depress the water table and remove free <br /> product, and an air stripper designed to treat the dissolved <br /> constituents in the extracted groundwater. <br /> GROUNDWATER REMEDIATION SYSTEM <br /> During this three month reporting period, groundwater was <br /> extracted from recovery well RW-1 only. Pumping was maintained <br /> in RW-1 at a rate of 9.6 - 2.2 gpm. The areas being influenced <br /> by pumping are illustrated on the previously referenced <br /> groundwater-gradient maps (Figures 5, 6, and 7) . <br /> CRoUNDWATER <br /> TECHNOLO CN,INC. <br /> W' <br />