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i <br /> ugA of TPH as gasoline, BTEX, MTBE, TBA, ETBE, DIPE, & TAME were below <br /> detection limits <br /> This latest work reveals that the groundwater plume has not migrated very far offsite - the <br /> inferred limit is shown on PLATE V1. Lots 17, 25, 29, 38, 40, 45, 60, & 64 are occupied <br /> by single family residences, and access to those sites is very restricted The soil probes <br /> were placed on city property to avoid the difficulties involved with obtaining permission <br /> from the owners The sites selected appear to have defined the lateral hunts of contanu- <br /> natFon with sufficient accuracy <br /> The results of the above analyses are summarized on TABLE XV, copies of the <br /> laboratory sheets, QA/QC, and custody chains are included as EXHIBIT D. <br /> CONCLUSION: <br /> Based upon an analysis of all of the work performed to date at this site, both the lateral & <br /> vertical limits of contamination appear to have been defined The soil sample taken at 60' <br /> bgl from SB-5 (MW-1) was below detection limits, indicating that there has been no <br /> vertical movement below that depth <br /> RECOMMENDATION: <br /> Further investigative work is not required, and proposals for remediation of the both soil <br /> and groundwater beneath the site should be solicited and selected to order that cleanup <br /> operate may egin to reduce the contamination to levels permitting site closure <br /> Wm t &Associates <br /> N em er 12, 1997 <br /> c S alentine \S��R�D 0c0�0 <br /> VR VOCB ���' cam, <br /> W11,L1AMMp i HL '3 <br /> r-11 o0 <br /> HD C60 <br /> 7 ', <br />