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Additional items <br />The following relatively minor reclamation tasks appear not to have been included in Ute estimate <br />Backfill Roadside South Mine Portals. The two portal openings at the South Mine have been sealed with <br />block wall approximately l00 feet inby the openings, but Utey have not yet been backfilled. Required <br />backfill volumes would be 889 cubic }accts for the manway portal and 296 cubic yards for Ute conveyor <br />portal. This item should be added to Ute cost estimate. <br />TR-31 haulroad reclamation. It wasn't clear to me wheUter the additional haulroad reclamation cost <br />associated with TR-3l was incorporated in the new estimate. The cost in the TR-31 estimate was <br />S 1212.00. <br />Minewater Pond 12. The estimate does not include a projected reclamation cost for Pond 12. A cost for <br />this item should have been included in Ute original estimate when the revision which authorized its <br />construction was approved, but it was missed. <br />Sewage treatment evaporation Itonds at the loadout. Neither tltis estimate nor previous estimates <br />included a separate task item for reclamation of tltese ponds. It is possible that the costs are included in the <br />backfilling and grading cost for the entire UTL area (Item Ol1), but tltis would appear to be questionable <br />since separate cost items are included for such similar swctures as sediment ponds and SAE sumps <br />associated with various other distarbance areas. <br />Reclamation Tasks Not Required by Current Aooroved Reclamation Plan <br />During the course of my review of the cost estimate, I have become aware of certain reclamation tasks that <br />would be pmden[, but that are not specified in the current reclamation plan. The following tasks may need <br />to be incorporated into the permit via TR-35, and included in the cost estimate, but before we proceed on <br />either track we need to get Dave Bery's blessing. <br />Steep Slope Soil Roughening. No firm commitment is included in the permit for scarification of the steep <br />slope areas to be broadcast seeded, although on page 14-16 it is stated that "...dozer tracking up and down <br />steep slopes may be used before seeding to establish a better seedbed." Based on results of previous <br />seeding efforts on the CRDA refuse piles where dozer tracking was employed, this teclutique would appear <br />to be sufficient on north and east facing slopes. However, on predominantly south and west facing slopes <br />such as CRDA-2 and portions of the RSRDA; larger scale, longer lasting roughening techniques would <br />appear to be warranted, to provide for increased moisture retention and microsites for plant establishment. <br />The pernit should be amended to include specific commitments for implementation of appropriate surface <br />roughening techniques on the steep slope broadcast seeding areas. Large scale surface roughening similar <br />to that implemented at the Soutlt Fan and 2-West Portal slopes could be accomplished by "gouging" with a <br />track-hce bucket, or dozer blade. Cost Estimate Task 065 includes chisel plow Ullage. However, as <br />discussed earlier in this memo, ripping or other tillage operations on Ute contour of refuse outslopes and <br />similar steep slope locations would require the use of a small dozer, and the other methods described would <br />likely be more practical and effective. Unless and until the permit is modified, I would recommend that the <br />chisel plow Ullage specified in the broadcast seeding task item be replaced by dozer tracking up and down <br />the slope, as referenced in Ute permit. <br />Coal Creek Channel Permanent Diversion. Reclamation of the permanent diversion was addressed in <br />TR-32. Specific timing of the channel work was not addressed, and may need to be, as it would be <br />desirable for the wgrk to be completed before Ute swnmer rainy season. Primary tasks include removal of <br />existing rock checks, excavation of stored sediment, installation of concrete wing-walls at Ute upper road <br />crossing, and riprap installation in specified locations. An additional grading task associated wiUt channel <br />reclamation appears to be waranted. Along almost the entire IengUt of the permanent diversion segment, <br />three to four foot high din berms were built up on both sides of the channel, to provide Ute required channel <br />cross-section associated with the rock check swcttrres. These berms give Ute channel an artificial <br />