HYDRO27401

• Permit No: C1981019
• IBM Index Class Name: Hydrology
• Doc Date: 4/11/2002
• Doc Name: 2001 Annual Impoundment Review and Adequacy
• From: DMG
• To: Colowyo Coal Company
• Permit Index Doc Type: Prof Pond Certifications
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
DeparCment of Natural Resources
7313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
April 11, 2002
Stephen R. Hinkemeyer
Manager, Technical Services
Colowyo Coal Company L.P.
5731 State Highway 13
Meeker, CO 81641
Subject: Adequacy, Yearly Impoundment Inspection Report, 2001, Permit C-81-019
Dear Mr. Hinkemeyer:
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SA FETY
Bill Owens
Governor
Greg E. Walther
Executive Director
Michael B. Long
Division Cirector
Thank you for your Yearly Impoundment Inspection Report for 2001, submitted under your
(Kimberley A. Wolf) letter of March 28, 2002. The report has been reviewed, and the following
adequacy issues have been identified. Please supplement the report with the requested
information.
Rule 4.05.9(14) All impoundments shall be inspected by a qualified registered professional
engineer or other qualified professional specialist under the direction of a professional engineer.
The professional engineer or specialist shall be experienced in the construction of
impoundments.
The report does not indicate who made the inspections, only that a registered engineer reviewed
the information. Please add to the report the name of the individual(s) who made the
inspections, and that this individual(s) is experienced in the construction of impoundments.
Rule 4.05.9(14)(b) The qualified registered professional engineer shall, promptly after each
inspection required by 4.05.9(14), provide to the Division, a certified report that the
impoundment has been constructed andfor maintained as designed, and in accordance with the
approved plan and the applicable regulations.
The report does not contain a statement that the impoundments were maintained as designed and
in accordance with the approved plan and applicable regulations. Please add to the report that
the impoundments were maintained as designed and in accordance with the approved plan
and applicable regulations.
Rule 4.05.9(15) Certified inspection reports required by 4.05.9(14) for all impoundments shall
include discussion of