REV96575

• Permit No: C1984062
• IBM Index Class Name: Revision
• Doc Date: 7/29/1988
• Doc Name: COLO YAMPA COAL CO BOND ADJUSTMENT MINE NO 3 C-84-062
• From: MLRD
• To: MIKE SAVAGE
• Type & Sequence: SR1
• Media Type: D
• Archive: No

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~~~~~Q STATE OF COLOIV~UU
Roy Romer, Govei
DEPARTMENT OF NATURAL RESOURCES
MINED LAND RECLAMATION DIVISION
FRED R. BANTA, Dlreetor
DATE: July 29, 1988
T0: Mike Savag
FROtA: David Berry
RE: Colorado Yampa Coal Company -Bond Adjustment -
Mine No. 3 - C-84-062
This memorandum will summarize the remaining bond issues pertaining to the
above-referenced bond adjustment. We currently hold 51,493,080.00 to cover
approximately 359 acres. The 359 acre figure includes about 6 acres covered
by permanent ponds, and about 1:5 to 2.0 acres at the office facility. The
remaining acreage (approximately 351 acres) has been topsoiled and
revegetated. We have recommended a total reclamation bond amount of
$156,000:00, which should cover reclamation of the office area, rill and gully
maintenance of the revegetated areas, reclamation of the various monitoring
wells and one hundred percent revegetation: The amount is calculated assuming
that topsoil redistribution is not an issue. Colorado Yampa Coal Company has
agreed to this figure.
Topsoil redistribution has been a concern; however, it seems that the
operation has adequately responded to our previous questions. The following
information is presented for your review so that we can issue a proposed
decision.
The initial permit application specified that approximately 888,400 cubic
yards of topsoil were available to reclaim approximately 300 acres. Please
note that an additional approximately 50 acres had been topsoiled prior to the
permit approval, but the same 50 acres remain under the current liability
area. Thus, the total affected area for which the bond was calculated is
actually about 350 acres.
The permit document divides the reclamation area into four blocks. The
specified redistribution depths varied from 1.5 feet (18 inches) to 2.7 feet
(32 inches), depending upon location, apparently due to the proximity to
particular topsoil piles. The Finding Document indicates that enough topsoil
existed to allow an average redistribution depth of 2 feet (24 inches), with
the actual depths varying with area as described above.
Based upon the Division's topsoil measurement inspection of October 1987, the
area-weighted average redistribution depth is about 20.5 inches and the
straight average depth is about 21 inches. Using the 20.5 inch value, average
depth varies about 15% from the permit value of 24 inches. CYCC has argued
that this can be explained by typical compaction loss.
215 Centennial Building, 13t 3 Sherman Street Denver, Colorado 80203-2273 Tel. [phone]