REP52635

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 5/6/2004
• Doc Name: 2003 Annual Hydrology Report Review Memo
• From: DMG
• To: File
• Annual Report Year: 2003
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Na[ural Resources
1373 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
interoffice
MEMORANDUM
COLORADO
DIVISION O F
MINERALS
GEOLOGY
0.E CLANATION•NINING
SAFETY•SCIENCE
Bill Owens
Governor
Russell George
Ezecutive Director
to: File C-81-019 Colowyo Coal Mine, 2003 Annual Hydrology Report Ronald W. Catrany
from: Byron G. Walker Division DirecTGr
subject: Review for Compliance Natural Resource Trustee
date: Apri128, 2004
amended May 6, 2004
Rule 4.05.9(17) Alt impoundments shall be examined at least quarterly by a qualified person
designated by the operator2 for appearance ofstructural weakness and other hazardous conditions3
The reports shall be retained at or near the mine site°, and a copy of the report shall be submitted to
the Division on a quarterly basis, or other approved submittal frequencys.
With the exception of inspecting six impoundments (Wash Bay Pond, Taylor Pump Holing Pond,
Aeration Pond, North Overflow Pond, South Overtow Pond, and the Sediment f>ump Pond)
during the 2"d Quarter, the report demonstrates compliance with this rule. The missing reports
were submitted on Apri129, 2004. `The reported dates of inspections are presented in the
following table. 2A qualified person (Kurtis Blunt) made the inspections and the report is
certified by a registered professional engineer (Jaye Pickart). 3The ponds were inspected for
appearances ofstructural weakness, erosion and other hazardous conditions Reports are
maintained at the mine site`' as validated by Division of Minerals and Geology (Division)
quarterly coal complete inspections at the site. A copy of the report(s) is submitted to the
Division on an annual basis (by April 1 following) in the Annual Hydrology Report (AHR)
(Permit page 4.05-115). Colowyo was permitted to reduce the frequency of inspection for stock
ponds/small depressions on June 5, 2002. Maintenance was accomplished as indicated.
Im oundmentl ls` Quarter 2" Quarter 3` Quarter 4` Quarter

Streeter Fill
OOIA 3/11/03 6-30-03 9-19-03 12-31-03
Work Area 002A 3/11/03 6-30-03 9-19-03 12-31-03
Gossard Loadout
003A 3/11/03 6-30-03 9-19-03 12-31-03
Gulch A 004A 3/11/03 6-30-03 9-19-03 12-31-03
Stoker Siding 3/11/03 6-30-03 9-19-03 12-31-03
I Impoundments are identified by name and Colorado Discharge Perini[ System (CDPS) identification numbers.
2 This report also serves as the annual impoundment inspection For these ponds.
Office of Office of Colorado
Mined Land Reclamation Active and InaRive Mines Geological Survey