GENERAL48614

• Permit No: C1981047
• IBM Index Class Name: General Documents
• Doc Date: 5/30/1985
• Doc Name: BLUE RIBBON COAL CO RESPONSE TO STIPULATION 2 MINE BENCH PERMIT REVISION PN C-047-81
• From: MLRD
• To: SUSAN MOWRY
• Permit Index Doc Type: STIPULATIONS
• Media Type: D
• Archive: No

•
• III IIIIIIIIIIIIIIII
999
DEPARTMENT OF NATURAL RESOURCES
Davitl H. Getches, Executive Director
MINED LAND RECLAMATION DIVISION
DAVID C. SHELTON, Director
Richartl D. Lamm
Governor
DATE: May 30, 1985
T0: Susan Mowry
FROM: Jim Pendleton
RE: Blue Ribbon Coal"Com y's Response to Stipulation No. 2, Mine Bench
Permit Revysion, rmit C-047-81
I have completed a review of the submittal made by Blue Ribbon Coal Company,
in accordance with Stipulation No. 2 placed on approval of its mine bench
revision.
The quantity, location and standard construction detailed for the eight survey
monuments and three piezometers are all acceptable. The operator proposes,
however, that the survey monuments be monitored for movement "quarterly for
the first year and annually in June for the next two years". Due to the
history of stability problems at the mine bench and the fact that the bench is
now a permanent underground development waste disposal structure, this
proposal is not sufficient. I recommend that we require the operator to
monitor the bench quarterly for a minimum of three years. At that time, if
insignificant movement has occurred, in the opinion of the Division,
suspension of monitoring may be requested. The operator shall continue
quarterly monitoring until cessation has been approved, in writing, by the
Division.
The proposed frequency of water level and water quality monitoring is
acceptable. However, the operator proposes to cease water level monitoring
after three years and makes no statement regarding water quality testing
duration. In both cases, as above, monitoring shall continue until cessation
has been approved, in writing, by the Division.
Finally, in the cases of survey monitoring and water level monitoring, no
statement is made regarding submission of the monitoring results. In each
case, the results shall be submitted within two weeks following completion of
the periodic monitoring.
With the imposition of these conditions, the bench monitoring plan proposed by
Blue Ribbon Coal Company would be acceptable.
/ph
cc: Bob Liddle
Doc. No. 0882
423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. [phone]