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,. � <br /> . .ti Mr. Nal Miller <br /> L `��� <br /> Lune 8, 1989 21989- <br /> page 6 <br /> w'r'i\SIA <br /> L FIEALPi <br /> Currently, dissolved hydrocarbons are detected only in <br /> groundwater sampled from MW-1 and PW-3. No dissolved <br /> hydrocarbons have been detected in any domestic well water <br /> samples since November 1988 (See Attached Fables 1 and 2) . <br /> CONCLUSIONS <br /> o The site subsurface hydrogeology is complex and <br /> laterally discontinuous. <br /> e soil vapor extraction has been successful as it has <br /> been applied as an abatement program. <br /> o Recent soil vent tests have confirmed the discontiguous <br /> nature of the site subsurface and the feasibility of <br /> expanding soil vapor extraction activities for <br /> aggressive soil remediation. <br /> o Dissolved hydrocarbons have not significantly impacted <br /> any nearby domestic wells. <br /> o The lateral extent of dissolved hydrocarbons is <br /> currently limited to the site. This distribution is <br /> attributed to be the result of continuously dropping <br /> water levels. As water levels dropped, the groundwater <br /> moved out of communication with the contaminated soil <br /> zone. The dissolved hydrocarbon plume previously <br /> present was removed from the groundwater as the <br /> dissolved hydrocarbons came into contact with a new <br /> soil horizon. This conclusion is supported by <br /> monitoring and sampling data from monitoring <br /> -` GROUNDWATER <br /> TECHNOLOGY.INC. <br />