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Evaporation Pond ~~ 7i~i6. Please provide a reclamation timetable for backfilling and •~ " reclaiming this pond per Rule 4.13. Ditches / 17. With the current permit status, all ditches on the mine site are designed using only one design/model. Please indicate if ti~ this standard is the intention of Coors Energy or does Coors intend to submit other ditch designs for the site. Does this design also include the ditch around topsoil pile A-1 and B-1? 18. New ditch designs need to be submitted as part of the drainage ~ g ~ plan for the haul road to B Pit. Culverts ~ 19. The permit indicates that the culvert presently located to the ~ ~ west of the Topsoil Piles A-1 and H-1 is undersized. Please ~r~ submit revised calculations and a plan to remediate this situation with the properly sized culvert as required under Rule 4.05.3{1). ., •~?~ Small Area Exemptions (SAE'S) fr \ .. . J ~" 20. The Division has requested that an updated map of all four SAE Topsoil Piles along the mine entry road be submitted together with the necessary demonstrations, pursuant to 4.05.2(3). This issue has been classified was a permit defect as per correspondence dated October 6, 1993•.,,,, _ I ~' 1-s~ Reclamation - Rule 2.05.4. 3.01 an 3.02 21. As required by Rule 2.05.4(2)(c), a post-mining contour map for all surface mines that reflect the reclamation plan needs to be submitted. The current permit map, Appendix Q-2, is out-of-date due to the change in spoil amount available for reclamation at the site. The current permit map is dated July 21, 1986 before coal mining activities ceased at the site and ..,., -,~ ash disposal began. Please submit an up-dated reclamatiom,' ' plan, including a timetable per Rule 2.05.4(2)(a) and a ~ 3 O , revised post-mining ~~ntour map for the site based on the cu=rent spoil amounts available for reclamation. 1712 30 22. An up-to-date surface structure map needs to be provided that depicts all culverts, drainage ditches, ponds, impoundments and roads currently on the site. _..~~ .,~y All issues numbered nine through 22 are to be addressed in a separate Technical Revision to be submitted by March 21, 1994 as part of the Mid-term review.