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October 2004 -16- 043-2170 <br />• part of the Phase Nc OSA. Record Drawing No. 5 in Appendix A presents the OSA geomembrane <br />panel layout. Ames anchored geomembrane at the limits of the Phase Nc OSA in an anchor trench <br />with minimum dimensions of 3 feet deep by 2 feet wide. The geomembrane tie-in panels overlapped <br />the Phase Nb geomembrane panels a minimum of 3 feet and were extrusion welded, as shown in IFC <br />Drawing 17, Detail 3. <br />3.4 Underground Workings <br />A summary of underground working remediation for the Phase Nc OSA is presented in Table 3. <br />Additional remediation details are presented in Section 4.2.1. <br />• <br /> <br />~:w~m~rmowmc<n-Qeeeiv<aaawasvo.woo.i:~ezc<wnrv<.m< Golder Associates <br />