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i <br /> A T <br /> �I <br /> { <br /> Ms. Kellie Reichenberg <br /> Reynolds and Brown <br /> November. 2 , 1987 <br /> Page 3 <br /> f Prior to sampling, Well .MW1 was purged by'.bailing four <br /> casing volumes of -water. The groundwater sample was <br /> retained. in one-pair of 40 .milliliter bor_ osilicate vials <br /> with open-top closures ad teflon lined, silicone septa <br /> lids, pre-cleaned by the accordance with EPA <br /> f approved methods. The samples were delivered to an <br /> analytical laboratory certified by the-' (DHS) . Chemical <br /> analysis included benzene, toluene, xylene, and ethyl <br /> benzene, using EPA Method' 8020.. The attachments contain <br /> the environmental sample collection records, chain of <br /> custody records, and the laboratory results of the <br /> groundwater chemical analyses. The sample analysis was <br /> reported as less than detectable for benzene, toluene, <br /> and xylene. <br />' Based on our analysis of the previous investigations and . <br /> of the Aqua Terra Technologies investigation, no further <br /> work is warranted at the Tracy site. The groundwater <br /> shows no evidence of contamination from the former fuel ' i <br /> it containing tanks.. <br /> If you have. any questions, 'please do not hesitate to <br /> contact me. <br /> 3 <br /> Very truly yours, <br /> . AQUA TERRA TECHNOLOGIES, INC. <br /> C <br /> Ronald' M. Block,. Ph.D: <br /> Project Manager <br /> RMB/pd . <br /> Attachment <br /> II <br />