HYDRO24448

• Permit No: C1981019
• IBM Index Class Name: Hydrology
• Doc Date: 4/9/2003
• Doc Name: 2003 Impoundment Report Review ‎(Memo)‎
• From: Byron Walker
• To: File
• Permit Index Doc Type: Prof Pond Certifications
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman SL, Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
interoffice
MEMORANDUM
DIVISION O F
MINERALS
GEOLOGY
RECLAMATION
MINING•SAFETY
Bill Owens
to: File C-81-019 Colowyo Coal Mine, 2003 Yearly Impoundment Report Review OVernnr
Creg E Watcher
from: Byron G. Walker Executive Director
subject: Review for Compliance Ronald W. Cattany
Division Director
date: April 9, 2003
Table of Contents
Rule 4.05.9(14) ................................................................. .............................................................1
Rule 4.05.9(14)(a) ............................................................. .............................................................1
Rule 4.05.9(14)~) ............................................................. .............................................................1
Rule 4.05.9(15) ................................................................. .............................................................2
Rule 4.05.9(15)(a) ............................................................. .............................................................2
Rule 4.05.9(15)(b) ............................................................. .............................................................2
Rule 4.05.9(15)(c) ............................................................. .............................................................2
Rule 4.05.9(15)(d) ............................................................. .............................................................2
Rule 4.05.9(15)(e) ............................................................. .............................................................2
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 indicates that Kurtis Blunt made the inspections. They are certified by Stephen R.
Hinkemeyer, a registered engineer.
Rule 4.05.9(14)(a) Such inspections shall be made regularly during construction, upon
completion of construction, and at least yearly until removal of the structure or release of the
performance bond.
The report is a yearly inspection of existing ponds.
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 and/or maintained as designed, and in accordance with the approved plan and
the applicable regulations.