2012-06-13_INSPECTION - C1981020 ‎(2)‎

• Permit No: C1981020
• IBM Index Class Name: Inspection
• Doc Date: 6/13/2012
• Doc Name: Inspection Report
• From: DRMS
• To: Jim Stover
• Inspection Date: 6/5/2012
• Email Name: MPB
• Email Name: SB1
• Media Type: D
• Archive: No

June 5, 2012 C- 1981- 020/Munger Canyon Mine MPB
Overall the reclamation project has been very successful and there has been minimal erosion to date. The graded
backfill slopes in the portal area blend in well and conform to the original topography. The portal access road
reclamation generally blends into the adjacent steep slope and outcrop topography.
HYDROLOGIC BALANCE - Rule 4.05
Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7,
4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring
4.05.13; Drainage — Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18:
East Salt Creek at the entrance to the site was flowing at what appeared to be lower than normal flow for this time
of year. Munger Creek was dry.
The entire Munger Canyon Mine site was viewed during the inspection. There are ten post -mine channels
approved as permanent features including the following designated channels A, Al, A2, B, C, D, E, F, G, and H.
All permanent post -mine drainage channels were inspected. The 10 permanent channels have functioned well
with no significant erosion observed since they were constructed. Channel E is shown in Photograph No. 2 at the
end of this inspection report.
Ditches and culverts associated with the reclaimed waste disposal site, cover soil stockpile site, and the topsoil
stockpile locations were in good condition and maintained. The waste disposal area sediment pond was dry. The
inlet, embankment and discharge structures were stable. The reclaimed areas of the mine site were stable with
adequate surface water runoff control and no problems were noted.
ROADS — Rule 4.03
Construction 4.03.1(3)/4.03.2(3)
Drainage 4.03.1(4)/4.03.2(4)
Surfacing and Maintenance4.03.1(5) and (6)/4.03.2(5) and (6)
Reclamation 4.03.1(7)/4.03.2(7):
Access to Munger Canyon is from Colorado State Highway 139. I met Scott Gerwe at the locked entrance gate to
the site. The access road to the mine site was dry and the road was in good condition. The width of the haul road
located on BLM land was reduced to about eight feet and left in place to provide access for the BLM grazing
leaseholder and for the Operator to monitor and maintain the reclaimed areas. The section of narrowed haul road
on BLM land was found to be in good condition and no problems were noted along its entire length up to the
former portal bench access road. The upper portal bench road that provided access to the mine bench and portals
was completely reclaimed in 2007. The inspection began at the lower end of the portal access road and proceeded
up to the portal site, then continued to culvert locations along the haul road, the coal mine waste disposal area and
sediment pond location.
RECLAMATION SUCCESS - Rule 4.15, Rule 3:
Number of Partial Inspection this Fiscal Year: 8
Number of Complete Inspections this Fiscal Year: 4
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