REP42020

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 7/12/2007
• Doc Name: 2nd Quarter 2007 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
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
COLORADO
DIVISION OF
RECLAMATION
MINING
- &-
SAFETY
Interoffice MEMORANDUM Bill Ritter, Jr.
Governor
Harris D. Sherman
to: C-1982-056, Coa] Refuse Pile Inspection Report Executive Director
cc: Jerry Nettleton, Twentymile Coal Company, 29515 RCR #27, Oak Creek, ~4~86W6~a^Y
Brian D. Len, Northwest Colorado Consultants, Inc., 2580 Copper Ridge 1~aary~R~~~e Trustee
Box 775226, Steamboat Springs, CO 80477
Srom: Byron G. Walker
subject: Review ofthe 2"d Quarter 2007 Refuse Pile Inspection Report, Foidel Creek Mine, C-
1982-056
date: July 12, 2007
Table of Contents
Table of Contents
Rule 4.09.1(11)(a) .............................................................................. ............................................. 1
Rule 4.09.1(11)(c) ............................................................................... ............................................ 2
Rule 4.10.1(1) .................................................................................... ............................................. 2
Rule 4.10.1(1)(b) ................................................................................. ............................................ 2
Rule 4.10.2(I) .................................................................................... ............................................. 2
Rule 4.10.2(2)(a) ................................................................................. ............................................ 2
Rule 4.] 0.2(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(11)(a) The fill shall be inspected for stability by a registered engineer or other
qualified professional specialist experienced in construction of earth and rocl~ll embanlanents
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 of surface drainage
systems, (4) placement and compaction offill materials, and (S) revegetatlon.
The subject inspection was a quarterly inspection accomplished throughout construction, not one
of the critical construction periods. A registered engineer signed and stamped the report.
Rule 4.09.1(11)(b) The qualifted registered engineer shall provide to the Division a certified
report within 2 weeks after each inspection that the fill has been constructed as specified in the
Office of Office of
Mined Land Reclamation Denver Grand Junction Durango Active and Inactive Mines