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In association with PR -4, two changes were made to the Reclamation Scheduling table on <br />page 6 of Tab 19. First, the time period for Final Grading was amended to include <br />specific reference to the schedule on Exhibit 19 -1A. Second, a specified time period for <br />permanent channel construction was inserted ( "...within one year of completion of final <br />grading of adjacent backfill slopes..."). <br />Backfilling and grading timeframes (including variance request areas and deadlines) were <br />revised once again by PR -5, as a result of the early cessation of coal extraction, the <br />decision not to implement highwall mining, and associated reclamation plan changes. <br />Backfill and grading deadlines for the timeframe variance areas approved in PR -5 are set <br />forth on pages 5 -7 of Tab 19 of the permit application, and depicted on the amended <br />Exhibit 19 -1 " Backfill and Grading Plan". The Division approved a variance from the <br />180 day rough backfilling and grading requirement of Rule 4.14.1(1)(c), for the variance <br />areas described as: <br />• 1,600 feet of the "A" Pit Ridgeline Pit; backfilling /grading to be completed by <br />the end of 2005. <br />• 2,800 feet of the Wadge Pit Northern Area; backfilling /grading to be completed <br />by the end of 2005. <br />• 900 feet of the Wadge Pit Central Area to be backfilled /graded by the end of <br />2005. <br />• 700 feet of the Wadge Pit Central Area to be backfilled /graded by the end of <br />2006. <br />• 1,400 feet of the Wadge Pit South Area to be backfilled /graded by the end of <br />2005. <br />• Approximately 15 acres of the Wolf Creek area to be backfilled /graded by the <br />end of 2006. <br />As of June 2006, rough grading was completed in all of the variance areas with 2005 <br />completion deadlines. Grading was completed in the Wadge Pit Central Area and Wolf <br />Creek variance areas in 2007. <br />Potentially acid or toxic - forming spoil material was to be identified by sampling regraded <br />spoil, and would be chemically treated or buried with a minimum of four feet of topsoil. <br />By neutralizing and /or isolating any acid or toxic - forming material from the surface, and <br />mixing limited quantities of such material with much greater volumes of alkaline and <br />benign spoil material, any negative effects of problematic material would be ameliorated. <br />No acid or toxic - forming material was identified during reclamation operations, and there <br />was no need for special handling of overburden materials. <br />Seneca II -W Findings Document 47 C -1982 -057 <br />Permit Revision No. 6 January 6, 2012 <br />