2018-10-09_INSPECTION - C1983059 ‎(2)‎

• Permit No: C1983059
• IBM Index Class Name: Inspection
• Doc Date: 10/9/2018
• Doc Name: OSM Inspection Report
• From: OSM
• To: DRMS
• Inspection Date: 9/25/2018
• Email Name: LDS
• Media Type: D
• Archive: No

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Denver Field Branch
Mine Site Evaluation Narrative

Company: Oxbow Mining, LLC
Site: Terror Creek Loadout
Permit No: C-1983-059
Date of Inspection: September 25, 2018
Inspection Type: Oversight complete
Weather: Sunny, clear, and warm with dry ground conditions
Operator Representative(s): Doug Smith
State Official(s): Leigh Simmons (Division of Reclamation, Mining and Safety)
OSMRE Official(s): Tom Medlin (#562)

Background
This was a complete oversight inspection at the Terror Creek Loadout in Delta County,
Colorado. Prior to and following this inspection, I performed an administrative review of
pertinent documentation including recent DRMS inspection reports (which indicate no
enforcement actions taken or pending) and various maps of the surface facilities and
sedimentation controls. The permit area is approximately 20 acres, 13.6 of which have been
disturbed by infrastructure required by coal crushing, sizing, and loading activities. There was no
activity at the time of inspection.

Mine and Permit Identification Signs (Rule 4.02.2)
The mine and permit identification signs were located at both points of public access and
contained the required information. See Figure 1.

Perimeter Markers (Rule 4.02.3)
Perimeter markers clearly identified the mine site permit area. One perimeter boundary sign was
missing from its t-post along the railroad track at the southern boundary of the property. Mr.
Smith agreed to replace the sign.

Topsoil Markers (Rule 4.02.7), Topsoil Storage (Rule 4.06.3)
The Team inspected Topsoil Stockpiles No. 1 and No. 2. The stockpiles were properly marked,
bermed, well-vegetated, and no evidence of resource loss was noted. See Figure 2.

Diversions (Rule 4.05.4), Sediment Control Measures (Rule 4.05.5), Sedimentation Ponds
(Rule 4.05.6), Discharge Structures (Rule 4.05.7), Impoundments (Rule 4.05.9)
The Team inspected the Dugout Pond and Sedimentation Pond. Both ponds were completely dry
and would function as designed during precipitation events. Both ponds exhibited stable
embankments, unobstructed inlets and spillways, and ample sediment storage capacity. See
Figures 3 and 4. Sediment logs and straw bales stationed along the southern boundary of the site
at Small Area Exemptions 1 and 3 were inspected and found to be in serviceable condition and
functioning as designed. See Figure 5. Sediment control ditches, undisturbed area diversions, and
related culverts throughout the property were also inspected and found to be in good repair. See
Figures 6 and 7.