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P. 14-6, RSRDA final reclamation narrative. Describes slope <br />grading, bench drain construction, cover soil replacement, and <br />diversion construction to occur upon future initiation of <br />final reclamation. <br />P. 14-10, CRDA 1 and 2 additional reclamation narrative. <br />Appendix 14-6, RSRDA Final Reclamation Drainage Design (future <br />implementation). <br />Exhibit RS-11-008, RSRDA Revegetation/Cover Thickness field <br />trials layout. Exhibit 6C, RSRDA Postmine Topography Map. <br />Exhibit 9C and Exhibit 18, CRDA 1 Postmine Topography Map and <br />Cross Sections. Exhibit 26, RSRDA existing and proposed final <br />contours. <br />Tab 18 Hydrologic Monitoring Plan <br />P. 18-4, CRDA 1 and 2 piezometer narrative. Four pz's <br />installed on CRDA-1 1984-1991. Three pz's installed on CRDA <br />2 in 1991. Due to higher than anticipated water levels than <br />originally assumed, additional studies were performed, <br />culminating in a December, 1993 report by Western Engineers of <br />Grand Junction. As a result of their evaluation, thirty pz's <br />(PZ 100-107, 200-206, 300-307, and 400-406 were installed at <br />four locations on the pile. Multiple 1/2" diam. pz's were <br />installed in each bore hole. Multiple zones within the hole <br />separated by bentonite plugs. The study established "critical <br />target depths for each pz, at which stability of the pile <br />could again be in question. These pz's monitored quarterly. <br />Total pz depths and Critical Target Depths are listed in Table <br />18-4 (enclosed). <br />Relevant Documentation Not Currently in the Permit Application <br />Package. <br />1) Pertinent sections of a May 19, 1988 memo from Jim Pendleton of <br />DMG to Mike Long of DMG regarding a May 16, 1988 OSM oversight <br />inspection at CRDA 1, an August 29, 1988 letter from Larry Reschke <br />of Powderhorn to Michael Savage of DMG regarding issues of concern <br />at CRDA 1, and September 2, 1988 review memo from Jim Pendleton to <br />Michael Savage (all enclosed). <br />2) Stability analysis of CRDA 1 completed by Western Engineers of <br />Grand Junction, and submitted with Technical Revision 18 in July, <br />1993, to allow for reactivation of CRDA 1. <br />3) September 3, 1994 review memo from Jim Pendleton to Erica Crosby <br />of DMG, regarding the Western Engineers stability analysis <br />(enclosed). <br />4) Quarterly refuse piezometer water levels (in annual hydrologic <br />reports for 1995 and prior water years, on file at mine office for <br />