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r <br /> Union Ice Company - Weber Street <br /> Phase ll-Report of Findings <br /> Page 10 <br /> Well 5S showed very minor amounts of Toluene contamination in March, 1990. This <br /> p:K well has also sampled clean since that time. <br /> 3 <br /> Well 6S showed minor Toluene contamination in March, 1990. This well showed <br /> slightly elevated levels of BTE&X in June of 1990. It has sampled clean since that <br /> time. This well is also an up-gradient well, at the edge of the property; the minor <br /> amounts of the contamination detected in this well may be indicative of an off-site <br /> ` source. <br /> Well 7S showed minor Toluene and Xylene contamination in March and April of 1990. <br /> This well has sampled clean since April of 1990. The minor levels of contaminates de- <br /> tected previously are probably background levels of contamination in this highly indus- <br /> t : trialized arca. <br /> Evidence of contamination was noted on the geologist's log during installation of well <br /> l,.. 4S (Appendix B). This wel! showed elevated Benzene (3,Oppb) and minor Toluene, <br /> Ethyl Benzene and Xylene in May, 1990. This well has sampled clean since that time. <br /> There is no further evidence of contamination in this portion of the aquifer, at this site. <br /> r <br /> Well 4D showed elevated Benzene (2.4ppb) and Toluene (110.0 ppb) in March, 1990. <br /> It sampled clean in April, May, June and August of 1990. In March of 1991, it <br /> sampled "ND" for Benzene and showed presence of minor levels of Toluene, Ethyl <br /> Benzene and Xylene. This well sampled clean in April, 1991, <br /> 1 <br /> Well 4D is a second aquifer well. The sample results show that there has been some <br /> minor contamination of the lower aquifer, at this site, resulting From the release from <br /> the UST's. However, it appears to have cleaned up for the most part, particularly with <br /> I respect to Benzene. <br /> Wells MW-8S and MW-9S were installed in N1,1rch of 1991, as down-gradient monitor <br /> wells. These wells were sampled in March and April of 1991 Witt, no contamination <br /> detected. <br /> t" Ground water samples taken from MW-9, MW-4S and MW-8S in March of 1991, <br /> were also analyzed for fecal coliform and coliform bacteria. Laboratory reports for this <br /> Mill <br /> i.- <br /> sampling are presented in Appendix E. Results follow: <br /> t3 <br />