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11-3-04 12:06PM FROM-DMG GRAND JUNCTION FIELD OFFICE 970 241 1516 T-353 P.002/004 F-10 <br />STATE OF COLORADO, <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 4 C EF e4V L,, ems: <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />IN 1? <br />FAX: )303) 832-8108 IN 0 c?n?p? <br />c?0 <br />DivisiAn of Mintlrals & GeDOMovember 18, 1996 <br />TO: TIM WARDLE <br />FROM: PAUL KRABACHER <br />RE: SUNBELT MINING/PEACOCK COAL FFTCR/C81-040 <br />PROJECT COMPLETION <br />WA <br />T)EPAkTMENT OF <br />NATURAL <br />RESOURCES <br />Roy Romer <br />Governor <br />)awes 5. Lochhead <br />Executive. Director <br />Michael B. Lonp <br />Divi,lon Dirmlor <br />The following summarizes work performed at the Peacock Coal bond revocation site in Hay <br />Gulch; La Plata County- The original regrading work and portal closure at the site was bid out <br />by the bank responsible for the bond. Phone bids were solicited for the maintenance work which <br />consisted of primarily a reclosure of a reopened portal and road reclamation. Alpine Mine <br />Construction submitted the low bid of $5,500.00 for excavator work and revegetation work. The <br />project was awarded in May of 1996. Mobilization occurred on 5/20/96 with hourly excavator <br />time commencing on 5/21/96. The backfilling of the portal was completed on 5/21 including <br />the placement of on-site over sized material (rock, concrete slabs) into the portal. Compaction <br />was achieved through repetitive jabbing of the hoe bucket into the fill. Roadbase and gravels <br />were excavated and loaded onto one of King Coal's dumptruck for off-site use on 5/22. Also <br />on 5/22 two piles were recontoured. On 5/23 the middle-east access road was recontoured with <br />parallel contour furrows and the eastern access road gravels were finished being removed. <br />Earthwork, weed spraying and revegetation was completed on 5/24/96. The earthwork and <br />revegetation portion was finished under Purchase Order #PD PKA 96000000036 for a total cost <br />of $5,200.00. Not all the hoe time was used. Seed costs were $99-50. <br />During an inspection of one of the coal people in Hay Gulch, a 100 year storm event occurred <br />which dramatically had an affect on the road reclamation. The re-backf lied portal area was <br />unaffected. Soils were spilled out onto the County Road from the site originating from an upland <br />galley which directed flows onto and down the reclaimed eastern access road. An additional <br />project regraded the access road. The upland gulley drainage was routed to flow into a ditch to <br />the east around the road. A minor cutoff trench was also constructed in case any future flows <br />did enter onto the road directing any flow off the reclaimed road into established vegetation. The <br />entire road width was re-roughened, furrowed, seeded and mulched. This second phase of the <br />site work was completed under Purchase Order #PD PKA 97000000016 for a total cost of <br />$2,000.00. This maintenance work was inspected on October 30, 1996. It is interesting to note <br />what af=fect the furrows initially constructed on the reclaimed east road had on the 100 year <br />runoff. Water was obviously very touch slowed down by the furrows yet the velocity was so <br />intense, scour holes were evident beneath each previous furrow. It was concluded that if furrows <br />weren't constructed, a tremendous increased amount of material would of ended up on the <br />County Road as well as a very well established gulley down the pulled back road- Also of note <br />was the presence of 12"+ high mulch growth from a very dry summer.