REP11734

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 10/12/2006
• Doc Name: 3rd Quarter 2006 Review Letter
• From: DRMS
• To: Twentymile Coal Company
• Permit Index Doc Type: Waste Pile/Fill Report
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Colorado 80203
Denver C O L O R A D O
, DIVISION O F
Phone: [phone] RECLAMATION
FAX: [phone] M I N I N G
- &-
SAFETY
Interoffice MEMORANDUM Bill Owens
Governor
Russell GeoBe
to: C-1982-056, Coal Refuse Pile Inspection Report Executive Director
cc: Jerry Nettleton, Twentymile Coal Company, 29515 RCR #27, Oak Creek, ~A180~~a~r
Brian D. Len, Northwest Colorado Consultants, Inc., 2580 Copper Ridge ~a~dK~eerTrustee
Box 775226, SteambogYSprings, CO 80477
from: Byron G. Walker.
subject: Review of the 3`d Quarter 2006 Refuse Pile Inspection Report, Foidel Creek Mine, C-
1982-056
date: October 12, 2006
Table of Contents
Table of Contents
Rule 4.09.1(11)(a) ...................................................................... ..................................................... I
Rule 4.09.1(11)(c) ...................................................................... .....................................................2
Rule 4.10.1(1) ............................................................................ ..................................................... 2
Rule 4.10.1(1)(b) ........................................................................ ..................................................... 2
Rule 4.10.2(1) ............................................................................ ..................................................... 2
Rule 4.10.2(2)(a) ........................................................................ ..................................................... 2
Rule 4.10.2(2)(b) ........................................................................ ..................................................... 3
Rule 4.10.2(2)(c) ........................................................................ ..................................................... 3
Rule 4.10.2(2)(d) ........................................................................ ..................................................... 3
Rule 4.10.2(3) ............................................................................ ..................................................... 3
CDRMS Policy Memorandum, 7/13/84 .................................... ..................................................... 3
Rule 4.09.1(1 I)(a) The fill shall be inspected for stability by a registered engineer or other
qualified professional specialist experienced in construction of earth and rockfall embankments
under the direction of a qualified professional engineer at least quarterly throughout the
construction and during the following critical construction periods: (1)removal of all organic
material and topsoil, (2)placement of underdrainage systems, (3) installation ofsurface drainage
systems, (4) placement and compaction offill materials, and (5) revegetation.
The subject inspection was a quarterly inspection accomplished throughout construction, not one
of the critical construction periods. A registered engineer signed the report.
Rule 4.09.1(11)(b) The qualified registered engineer shall provide to the Division a certified
report within 2 weeks after each inspection that the fill has been constructed as specif ed in the
Office of Office of
Mined Land Reclamation Active and Inactive Mines