GENERAL43067

• Permit No: C1980005
• IBM Index Class Name: General Documents
• Doc Date: 6/6/1989
• Doc Name: SENECA II MINE C-80-005
• From: MLRD
• To: PEABODY COAL CO
• Permit Index Doc Type: GENERAL CORRESPONDENCE
• Media Type: D
• Archive: No

... T III IIIIIIIIIIIIIIII
999
.~~~~a STATE OF COLOI~UO
Roy Romer, Govei
DEPARTMENT OF NATURAL RESOURCES
MINED LAND RECLAMATION DIVISION
FRED R. BANTA, Director
June 6, 1989
Mr. James S. Lunan
Peabody Coal Company
1300 South Yale
Flagstaff, AZ 86001
Re: Seneca II Mine, C-80-005
Dear Mr. Lunan:
During a regular inspection of the Seneca II mine on May 23, 1989, Division
inspectors noted three areas where road drainage had resulted in excessive
erosion or had the potential to create excessive erosion. The areas of
concern are as follows:
1. Above the Wadge Impoundment where drainage from Ditch Al is
culverted under the haul road,
2. Above the Wolf Creek Underdrain where drainage from Ditch F1 is
channeled off the slope at the road bend,
3, Above Ditch Al and below Ditch F1 approximately 600 feet south of
the point where roads Al and F1 intersect.
These areas require stabilization. We have subsequently requested
that Roy Karo implement Peabody's erosion control plan in these
areas. We will monitor the effectiveness of these measures in
preventing further erosion in these areas.
Based on the occurence of these large sullies we would like Peabody to
reexamine the current practice of channeling road drainage across fills. The
permit application discusses the practice of water release along haul roads
on panes 12-28 through 12-30. We believe there may be a less maintenance
intensive way of handling the runoff which would not result in excessive
erosion.
Other concerns which arose during this inspection include the fact that
Exhibit 7-7 does not accurately reflect on the around drainage and ditch
locations. Specifically, along roads Al and Fl, it was observed that ditches
existed on both sides of the haul roads whereas Exhibit 7-7 indicates that
ditches should only exist on one side of the road. Also, Exhibit 7-7 does not
indicate where the MSHA Safety berm has been breached to allow water to flow
out of the side ditches. Therefore, we believe drainage design documentation
contained in the permit may not be accurate.
215 Centennial Building, 1313 Sherman Street Denver, Colorado 80203.2273 Tel. [phone]