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2015-10-15_REVISION - C1981046 (6)
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2015-10-15_REVISION - C1981046 (6)
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Last modified
8/24/2016 6:11:43 PM
Creation date
10/20/2015 11:14:27 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981046
IBM Index Class Name
Revision
Doc Date
10/15/2015
Doc Name
Proposed Decision & Findings
From
DRMS
Type & Sequence
SL1
Email Name
BFB
DIH
Media Type
D
Archive
No
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to the former permittee, and the former permittee is not due any monetary consideration as a result of <br />this Termination of Jurisdiction process. <br />IV. Reclamation Projects <br />The Division commenced reclamation of the site in the summer of 1990. Work involved sealing and <br />backfilling the access portal, demolishing and removing certain mine structures and electrical <br />utilities to the north of GCR 117, and sealing the fan portal south of the road. The air intake adit <br />collapsed behind the portal seal in 1994, creating a depression at the surface roughly 15 feet in <br />diameter and more than 50 feet deep. The collapse was reclaimed in the summer of 1994 by IMRP. <br />Removal of a failing crib wall adjacent to and on the north side of the road, backfill of the settlement <br />or collapse over the lower fan portal (below the road), cleanup of miscellaneous equipment and <br />mining debris, and reseeding of re -disturbed areas was accomplished in October of 1999 by IMRP. <br />The collapsed cribbing around the lower fan adit was removed and buried on site and the subsidence <br />inby of the adit seal was repaired on September 9, 2013. <br />Weed Control <br />Several Colorado listed noxious weeds were noted at the Sunlight Mine including absinth <br />wormwood, cheatgrass, Canada thistle, bindweed, houndstongue, oxeye daisy and mullein. All of <br />the noxious species combined accounted for 4.8% of cover in 2013 and 4.5% in 2014. The weeds at <br />the minesite have not been treated for at least the last 10 years because of the lack of funds. <br />V. Sediment and Erosion Control <br />The clean water diversion ditch above the upper portal area is to remain. The western side of the ditch <br />is blocked due to the hillside slumping. The blockage forces the water out of the ditch and down the <br />face of the hillside to a vegetated flat area. A couple of small rills have formed on the hillside as a result <br />of the blocked ditch. Below the hillside, the water flows onto a vegetated flat area where there is no <br />further evidence of sediment movement. The ditch blockage has not been repaired due to lack of <br />available funding. <br />The sediment pond below the scale area is also to remain. The County Road 117 road -side ditch drains <br />through a culvert and into the pond. This culvert is maintained by the County. The pond and its <br />embankment are well vegetated. <br />VI. Observation and Findings <br />Site Inspection History <br />5 <br />
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