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Mr. Michael Infurna <br /> Page 2 <br /> ,r <br /> Seven rounds of groundwater sampling have been conducted at the site since June 1993. During <br /> this period, detectable levels of dissolved contaminants were reported only once, in downgradient <br /> well MW2 in June 1995. Dissolved benzene in groundwater has never been detected and the <br /> levels of other aromatic hydrocarbons have not exceeded applicable water quality criteria. <br /> h <br /> These data indicate that previous source reduction measures were successful and that no <br /> groundwater contamination of any significance currently exists. <br /> l <br /> Ground Zero recommends no further action and that the site be evaluated for closure. <br /> { <br /> If you have any questions or comments, please contact the undersigned at (209) 952-3481. r <br /> Respectfully, <br /> Ground Zero Analysis, Inc. <br /> Jeanne Buckthal <br /> Staff Geologist ���' <br /> GREGORY P. J` <br /> STAHL <br /> No. 5023 <br /> Gregory P. Stahl, RG 5023 F OF CA :I:t� <br /> CA Certified Hydrogeologist 264 <br /> Attachments <br /> Q <br /> pc: John TIP Trust Pestana <br /> Mr. Gerald Sperry, Freeman, Brown, Sperry & D'Aiuto <br /> Ms. Elizabeth Thayer, RWQCB Sacramento <br /> J <br /> ' 1 <br /> I <br /> sro=dulpest=&.03512gm19% <br /> i <br /> IE <br />