2003-03-21_REVISION - M1980136 - Laserfiche WebLink

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(Page 2) MINE ID # OR PROSPECTING ID #M-1980-136 INSPECTION DATE 7/30/02 INSPECTOR'S INITIALS GRM This inspection was conducted as part of the normal monitoring program of the Colorado Division of Minerals and Geology and a Technical Revision(TR-01) request. Also pending is a partial release request for Area "A". The Chambers Pit is an active 112c permitted site loceted west of the Eagle County Fair Grounds in Eagle, Colorado. The inspector was accompanied by operator representative Darrell Ewing: The mine identification sign and affected area boundary markers are in place and in compliance with Rule 3.1.12. The mine identification sign is located next to the scale house. The scale house is unique in that it is several hundred yards from the gated entrance to the permitted area. Although a sign is present, it would be more appropriate at the gate enVance. This issue is not being Ifsted as a problem, but DMG staff request either an additional sign meeting the requirements be placed at the actual pit entrance or move the one at the scale house to this location. Permit boundary markers are fence lines and natural borders that are easily identifiable: Noxious and/or problematic weed infestation was observed within the affected area. The infestation, 'rf not controlled, will most likely hinder and/or delay successful reclamation of this site and contribute to off-site spreading and establishment of these weeds. A weed control plan developed in consultation with, and approved by, the appropriate local weed control authority must be submitted as a technical revision to this permit. Weed infestation is noted as a problem, with the corrective action(s) and corcection date specified on the last page of this report. Significant progress toward control of on-site weeds must be demonstrated within three years to avoid potential Board action. A copy of this report will be sent to the appropriate weed control authority for this area. Spec'rficelly, Canadian Thistle is noted in reclaimed areas, as well as in the new "D" area. No sign'rficant erosional features were noted on the affected areas of the site. All stortnwater measures appear to be twntaining run on/ off to the site. Area "A" was reclaimed in 1999 / 2000. The plan called for fuming much of the area into a parking lot for the Eagle County Fairgrounds Complex. The larger portion of the area is compacted base coarse materials free of weeds and debris. The areas around the parking lot have been vegetated with wheatgrasses, sagebrush and rabbit brush primarily. Existing cottonwoods are in good health. The area along the south edge has picnic tables and Frisbee golf stations. Slopes on the north portion are a minimum of 3h:iv. Grasses ihdude western and slender wheatgrasses that have established very well with approximately 80% coverage. This 12 acre area is ready for release. The operator requested an opinion on Area "B" for possible release. This area is located at the far west side of the permitted area adjacent to the Zogg area that has just been released. All grading and sloping meet the reclamation requirements. The revegetation efforts to date are sparse and a second seeding is going to be necessary. Some wheatgrasses have started to take hold but are very low in density. This area is not ready for release, but all earthwork has been completed and will be reflected in the new bond calculations for the site. According to the operator's representative, Eagle County has requested that the current access road be left as lt affords the only back entry to residences along the north bank of the river. Staff has no problem with this but the permit should reflect the road being left in place. The operator should obtain a letter from the county stating this desire and a technical revision should be done to the Reclamation Plan noting the change. Topsoil stockpiles will be pushed back with the opening of area "D" . As a reminder topsoil must be protected from erosion if left in place for more than one year. Vegetation on the existing piles is very thin but not listed as a problem due to its impeding relocation. The new reclamation bond will be sent as soon as possible. The estimate will reflect a release of Area "A", addition of Area "D" ,earthwork completed in Area "B" and curcent conditions in the plant area. No other issues were noted at this time.