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to approve the additional time. (backfilling and grading plan starts on page 816- 123, Rule 4.14.1) 2. The Division proposes to approve the applicant's plan for disposal of debris, acid-forming or toxic materials, or materials constituting a fire hazard in a manner designed to prevent contamination of ground or surface waters. Non-coal waste will be buried in backfilled mine pits to a depth less than fifty (50) feet and greater than twenty (20) feet below ground level. Used oil and lubricant will be stored in an outdoor storage tank which has an emergency overflow to a clay lined pond south of the shop. (Pages 780-11a through 780-12). A contingency plan has also been developed to prevent sustained combustion of flammable materials. (4.14.3(1)(a)). 3. The applicant has submitted a plan for reclamation of excessive rills and gullies. This plan is proposed to be approved by the Division. (4.14.6(1)). Seeding will be followed by contour furrowing, when rills greater than nine inches (9") are formed, they will be blocked, remulched and stabilized. If this proves unsatisfactory, the mine will use a small rubber-tired farm tractor for regrading. Once the site is reseeded, it will be planted with annual grain (page 816-142). VI. Revegetation 1. The Division proposes to approve the use of introduced species in the reclamation seed mix. The applicant has submitted information which shows that the introduced species are desirable and necessary to achieve the approved post-mining land use, and are not poisonous or noxious. The introduced species approved for the mine area are Russian wildrye, dryland alfalfa, yellow sweetclover and small burnet. Introduced species approved for the tipple area are intermediate, pubescent and tall wheatgrasses, meadow foxtail, timothy and titer milkvetch (page 816-146 aR of application as amended 8/90( Rule 4.15.2)). 2. The Division proposes to approve the use of live mulch as a means to meet soil stabilization requirements (4.15.4). The Division has approved the use of annual grain species as a means to meet soil stabilization requirements. Should a spring seeding be necessary, Russell oats will be planted, Sudan grass will be used for summer plantings and Elban Winter Rye, for fall seedings (page 816-151Rb as amended 8/90) Kerr Coal will chisel plow and disk topsoil once it has been laid down. Contour furrows will be put in place to avoid erosion prior to gemination of the annual species. 3. Methods to measure herbaceous cover and production, species diversity, and woody plant density are discussed in pages 816-150 through 816-165. These Marr Strip Mine, C-80-006 23 December 9, 1992