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and treat CAP. Since groundwater from the Forward Unit flows toward the Austin Unit, if <br />additional groundwater impacts are identified, it is likely that this would necessitate expansion of <br />the existing CAP in order to capture the breadth of the potential release plume. Assuming that the <br />groundwater impacts are similar to the impacts currently existing at the Austin Unit, the additional <br />CAP measures might include: installation of one groundwater extraction well and up to 10 gas <br />extraction wells. <br />As shown in Tables 1 and 2, it is estimated that the costs to implement the groundwater <br />mitigation measures described in Section 5.3 would be approximately $317,900, with an <br />additional $8,986 for annual operation and maintenance. This total is intended to provide a <br />basis for compliance with 27CCR Chapter 6, Subchapter 2, Article 4 financial assurance <br />requirements. This cost estimate takes into account typical well construction and appurtenant <br />costs. The cost estimate recognizes the relative high density of existing downgradient wells at <br />the site, the on-going CAP and EMP monitoring programs, and anticipates that no additional <br />investigative or monitoring measures would be required to evaluate a release or monitoring its <br />mitigation. <br />This report was prepared at the request of Forward, Inc. solely for the purpose of fulfilling the <br />requirements as specified in 27CCR. It is based on limited data described above and referenced <br />herein. Geo -Logic Associates should be notified of any conditions that differ from those described <br />herein since this may require a re-evaluation of the data and conclusions presented herein. This <br />report has not been prepared for use by other parties and projects other than those named or <br />described above. It may not contain sufficient information for other parties or other purposes. <br />This report has been prepared in accordance with generally accepted geotechnical and <br />hydrogeologic practices, and makes no other warranties, either expressed or implied, as to the <br />professional data presented in it. <br />Geo -Logic Associates <br />ki, <br />William B. Lo z, CEG, CHg <br />Project Geol ist <br />Attachments: <br />Figure 1 <br />Tables 1 and 2 <br />D:\2014-0012\FA finassur.doa 9 <br />3/10/2014, Rev. 0 <br />