INSPEC44823

• Permit No: C1980004
• IBM Index Class Name: Inspection
• Doc Date: 12/30/1993
• Doc Name: OSM MINE-SITE EVALUATION INSPECTION REPORT
• Inspection Date: 12/14/1993
• Media Type: D
• Archive: No

Grand Valley Coal Company
P.O. Box 70
Loma, CO 81524
McClane Canyon Mine; 12/14/93 Complete oversight inspection
I accompanied Erica Crosby, Colorado Division of Minerals and Geology (DMG)
on a complete, statistical sample oversight inspection of the McClane Canyon
Mine. We completed our field inspection on 12/14 and returned on 12/15 to
conclude the inspection. Weather conditions were sunny and cold with snow
cover throughout the minesite and ground conditions were frozen. We were
accompanied on 12/15 by John Walters of Grand Valley Coal Company
(GVCCI.
The current permit term is 1 /27/92 through 7/5/96; and the mid-term permit
review is to be completed during 1 /94 according to the inspection participants.
The mid-term findings were not reviewed as part of this inspection. The
following documents/records were found to be current and maintained on the
minesite: 11/24/92 Bond in the amount of S 136,000; 3/24/93 Annual
Flydrological Report; NPDES Permit CO-0038342 current through 1 /31 /95 with
discharge monitoring reports current through 9/30/93 and an 11/18/92 transfer
of permit ownership; surface and ground water sampling is current through
11/15/93; the sediment pond inspection is current through 9-1-93; liability
insurance i~ annually renewed; the sediment pond certification was dated
7/20/93 and the haulroad certification dated 6/7/88. There are three small area
exemptions approved on site as follows: the office/parking area, the soil
stockpile and the rip-rap stockpile. These three areas utilize alternate sediment
control practices including diversions/beans and dug-out type sediment basins.
There are hydrologic flow calculations contained in the approved permit for
these areas based on the 25 yr/24hr. design event. The permit does not
specifically state that runoff from these three areas will meet the State and
Federal effluent limitations. This requirement was discussed with inspection
participants and Mr. Walters is aware of the permittee's responsibility to meet
the applicable effluent criteria from runoff at the approved small area
exemptions. We also reviewed the USDI/OSMRE Finding of No Significant
Impact dated 1/7/93 and the recommendation for approval of the mining plan
dated 2/9/93 also from the USDI/OSMRE. We reviewed the original (1980)
Environmental Assessment as well as the 11/1985 Environmental Assessment.
t appears, as stated on page 4 of the 11 /85 Environmental Assessment, that
the original conditions outlined in the 1980 Environmental Assessment have
been complied with. We reviewed the conditions during the inspection and
determined their compliance. Page 5 of the 11 /85 Environmental Assessment
states (under soils) that soil replacement will occurr at a minimum depth