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<br />Mr. James Dillie <br />Adequacy Letter, Apache Mine Permit No. M78-009 <br />Page 9 <br />pazent materials and it met with tremendous success. It is our understanding that <br />so long as the quantity of wheat seed is kept quite low, the winter wheat does not <br />cause excessive competition with the more long-lived species and in most <br />instances does not remain in the vegetation to any appreciable extent after the first <br />two years. The use of the species is especially good in the event fall seeding <br />occurs in that it provides some degree of winter protection for the soils and helps <br />trap winter snowfall. Oats is added to the seed mix to accomplish the same <br />goals as winter wheat. Oats may supplement the winter wheat or replace the <br />winter wheat in the seed mia. <br />Furthermore, Page 6 of Exhibit D is now changed as follows in response to the <br />Reclamation Seed Mix change in November 1999. This change is to remove the Yellow <br />Sweetclover from the topsoil seed mix. <br />Salvaged topsoil will be stockpiled nearby each <br />clay pit. The slopes of the soil stockpiles will be no greater than 3H to 1 V. If the <br />soil stockpiles are to remain intact for more than one growing season, they will be <br />seeded with a cover crop to protect them from wind and water erosion. The seed <br />mixture to be used is as follows: <br />Saecies Rate #PLS/ac Broadcast) <br />Crested Wheatgrass 3.75 <br />Intermediate Wheatgrass 7.00 <br />Pubescent Wheatgrass 7.50 <br />Total k9'~S 18.25 <br />In addition, the following concerns are addressed, however specific changes to the permit <br />have not been included. The corrugated culvert under the access road now consists of 2 <br />culverts, neither of which is sufficiently sized, separately or combined, to pass large sized <br />precipitation events. The culverts actually function as a decant system to the pond and <br />the access road functions as a spillway when the culvert capacity and pond capacity aze <br />both exceeded. At the cutrent time, the southern disturbed area does not report to this <br />drainage and the central disturbed area immediately south and west of the access road is <br />in final reclamation, having been seeded in the fall of 1999. Currently these two ponds <br />do control, minimize or prevent downstream sedimentation problems from the <br />permanently reclaimed central area south and west of the access road. <br />The Division is correct that several existing ponds are intentionally not replaced in the <br />current reclamation plan. Specifically the ponds within and immediately adjacent to the <br />pre-law disturbed area within Stage 2 are not replaced. The current ponds remain from <br />previously disturbed mining areas and as these pre-law areas are remined in the future, <br />the reclaimed areas will report to the two ponds immediately south of the south access <br />