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{ <br /> Results : <br /> The results from this .limited test suggests that Vapor Extraction <br /> (V.E. ) is a viable mitigation technique for this site . Short <br /> duration V.E . pilot tests can only show initial vapor recovery <br /> and influence; this technique will asperate the subsurface along <br /> the least resistive pathways, ie , permeable strata. <br /> The most extensive and furthest reaching vacuum influence was <br /> from the ground water monitoring wells MW4 and MW8 . A <br /> substantial distance was affected from extraction on the vadose <br /> wells S1 and S2 , however extraction from MW8 was most <br /> influential and was able to capture most of the site, see Field <br /> Notes, Table 2 and Figure 3E. It is most likely that this vacuum <br /> influence could be attributed to a more permeable strata <br /> associated with the ground water aquifer and/or a pathway that is <br /> influenced from the deeper depth ground water wells . The <br /> associated vacuum influence (at similar times from the start of <br /> any given test) is depicted in the contoured maps, Figures 3A <br /> through 3E and the distance to pumping wells in Figures 4A <br /> through 4C. <br /> The results, including 'pounds per hour recovery, from the one <br /> day source test is presented in the Field Notes in Appendix A, <br /> Table 1 and 2 and the vapor results in Apendix B and C. <br /> The services performed by Western Geo-Engineers, a corporation, <br /> under California Registered Geologist #3037 and/or Contractors <br /> License #513857, have been conducted in a manner consistent with <br /> the level of care and skill ordinarily exercised by members <br /> of our profession currently practicing under similar <br /> conditions in the State of California, San Joaquin County and <br /> the city of Lodi . Our work and/or supervision of remediation <br /> and/or abatement operations, active or preliminary, at this site <br /> is in no way meant to imply that we are owners or operators of <br /> this site . Please note that known contamination of soil and/or <br /> ground water must be reported to the appropriate agencies in a <br /> timely manner. No other warranty, expressed or implied, is made . <br /> If you have any questions concerning this workplan or if we can <br /> be of further assistance, please don' t hesitate to contact us . <br /> Sincerely, ED �o <br /> /2�1 JACK E. <br /> NAPPER <br /> Vern A. Bennett J ck E. Napp <br /> Project Geologist No. 3037 gist <br /> eologist #3037 <br /> Ur�q�1F0� <br /> 3 USA65 Vapor Ext . Results <br />