2006-12-22_REVISION - M1973021

• Permit No: M1973021
• IBM Index Class Name: Revision
• Doc Date: 12/22/2006
• Doc Name: TR Approval
• From: DRMS
• To: Aggregate Industries - WCR, Inc.
• Type & Sequence: TR4
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman 5[., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
December 22, 2006
COLORADO
DIVISION OF
RECLAMATION
MINING
- &-
SAFETY
Bill Owens
Governor
Mr. Mike Refer Russell George
Aggregate hldustries - WCR, Ina Executive Director
1707 Cole Blvd., Ste. 100 Ronald W. Cattany
Division Director
Golden, CO 80401 Natural Resource Trustee
Re: Morrison Quarry, Permit No. M-1973-021, Technical Revision Approval, Revision No. TR-4
Deaz Mr. Refer:
On December 21, 2006 the Division of Reclamation, Mining and Safety approved the Technical Revision application
submitted to the Division on November 21, 2006, addressing the following:
Mod cation to the high wall and bench geometry immediately adjacent to the existing north south haul road in the
central quarry and mi»or reclamation changes to accommodate for the minor change in the mine plan. No warranty
increase for the change is anticipated at this time due to the minor change. Change ALSO combines two benches and
increases the high wall height from 30 to SO feet, to 60 to 90 feet Haul road width to increase to 75 feet to
accommodate 777 haul trucks. If during mining, the actual configuration changes from what is approved under this
TR, Aggregate Industries must submit another TR, so the warranty can be adjusted accordingly.
The terms of the Technical Revision No. 4 approved by the Division are hereby incorporated into Permit No. M-1973-
021. All other conditions and requirements of Pemlit No. M-1973-021 remain in full force and effect.
If you have any questions, please contact me at [phone].
Sincerely,
c~3-~~
Berhan Keffelew
Environmental Protection Specialist
Office of Office of
Mined Land Reclamation Active and Inactive Mines