PERMFILE46413

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: COYOTE DAM CLEAING PLAN FOR 1988
• Section_Exhibit Name: APPENDIX Q SECTION XXII
• Media Type: D
• Archive: No

TRAPPER 1CININ6 I1~C.
C,
August 12.; 1988
U
•
CERTIFIED P764980348
Mr. Gregg Squire
Colorado Mined Land Reclamation Division
215 Centennial Building
1313 Sherman Street
Denver, CO 80203
Dear Gregg:
Subject: Minor Revision MR-77. Partial cleaning of Coyote Dam.
Recently you received Trapper's second quarter sediment pond inspection report.
In this report, Coyote Dam will require partial cleaning during this fall.
Approximately 12 acre-feet (19,400 cubic yards) will be removed.
Work is planned to begin in September of 1988. The sediment will be hauled and
dumped in the abandoned Empire Energy pit, except for 6,000 yards. This material
will be used in repairing a portion of the Coyote drainage in combination with
some brush plugs. A standard lab analysis was performed on the material to be
removed from Coyote Dam. Attached as Appendix Q, Part XXII, the results show
that the material is not toxic or hazardous. The standard soil analysis compares
favorably with the analyses of Trapper's topsoil presented in Appendix G. Please
note that no SAR was taken due to the very low EC value and high lime content.
Therefore, the material cleaned from Coyote and to be placed in the drainage will
not produce problems for successful drainageway reclamation. Drainageway
stabilization techniques as outlined in Trapper's Mining end Reclamation Permit
will be followed.
The old Empire Energy pit will receive the remainder of the Coyote Dam cleaning.
It is projected that this will not significantly effect AOC•of the reclaimed pit
raising the final topography approximately one foot. The pit is scheduled to be
backfilled and reclaimed during the latter part of the 1988-1992 permit term.
Thus, disposing of the Coyote Dam pond cleanings will not hinder nor negatively
affect the planned reclamation of this pit. Additionally, the pit will provide a
very stable site for disposal.
Cleaning Coyote Dam will require the construction of an additional light-use
road. The road will start at the south end of Coyote Dam and run along the
Coyote drainage, meeting the C haul road by the topsoil stockpiles alongside the
drainage crossing. Topsoil removed during road construction will be placed in
the existing Coyote drainage topsoil stockpiles. It is possible that the road
may be surfaced with gravel to enhance the durability of the road. If done, the
Division will be notified, and the road upgraded to an access road. The attached
revised permit map M-9, sheets 1 of 4 and 2 of 4, shows the proposed location of
the light use road.
P.O. Box 187 Craig, Colorado 81626 [phone]