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i <br /> MW-2) No oil has been detected in the groundwater at MW-4, indicating that used oil <br /> contamination has not spread down gradient from MW-2 as far as MW-4 <br /> MW-4 continues to show contamination from gasoline, ox4nates and BTEX <br /> I <br /> Groundwater flow was south/southeast in December 2001, east in March 2002, north/northeast in <br /> June 2002, southeasterly in September 2002 and now easterly from MW-t to MW-3, southerly <br /> from MW-2 to MW-') and southwesterly from MW-4 to MW-3 This coupled with a very low <br /> gradient, will likely result in contamination remaining in relatively close proximity to the <br /> source(s) <br /> I5 2 Recommendations <br /> EI recommends <br /> 1 Continued removal of floating oil from MW-2 to four weeks until motor oils no longer <br /> appear <br /> 2 Continued quarterly monitoring of the four groundwater monitoring wells at CTL to <br /> � <br /> Iaccumulate data as a basis for future actions, or to show when contamination levels have <br /> dropped to insignificant levels <br /> I <br /> I <br /> I <br /> I <br /> Envtroneenng,Inc Project No 03 00218 Page 7 <br />