REP39566

• Permit No: C1981038
• IBM Index Class Name: Report
• Doc Date: 6/23/1995
• Doc Name: JUNE INSPECTION SUMMARY NORTH FORK MINES {TJW LOOP}
• From: DMG
• To: DAVID BERRY
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

"S
STATE OF COLOR~y
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215

Denver, Colorado 80203 II~
Phone: [phone]
FAX: [phone]
DEPARTMENT OF
NATURAL
Date: June 23, 1995 RE$~URCE$
To: David Berry ~~~;r
/,il ( ~ lames 5. Lochhead
From: Kent Gorham K ~((T7 Esecmive DirMOr
Michael B. Long
CC: Tony Waldron Division Direcror
RE: June Inspection Summary, North Fork mines, (TJW loop)
As you are aware, I recently completed partial inspections of the
mines assigned to Tony Waldron in the No rth Fork valley.
Generally, these inspections focused on hydrologic issues at the
mines. Below I have briefly summarized some areas that I have
concerns with regard to hydrology.
Bowie No. 1
The sediment pond below the gob pile is in dire need of a clean
out. Sediment levels are above the lowest dewatering point on this
riser and are restricting, to some degree, the capability of this
pond to dewater. This cleanout should occur as soon as possible
this field season.
The four bin wall ponds are, as you know, the topic of a currently
pending notice of violation. The operator is currently addressing
the "leaky nature" of the embankments and dewatering pipes. A
second issue is the appropriate position of the dewatering device
as well as the position of the gate, which is present on all four
ponds. The operator is currently not aware of how each gate should
be configured (open, closed, 1/2 open, etc.). It is my
understanding that Jim Stover is assisting the operator in
evaluating possible changes or modifications to these ponds. In
the meantime, I will be evaluating .the design information for this
pond series to determine if a problem currently exists.
The West Mine pond appeared normal and this design will also be
reviewed.
The low quality coal pile pond has two separate spillways and the
principle spillway riser is a gated design. The gate was found
closed at the time of my inspection. This pond design will also be
reviewed.
The loadout pond is also a bin wall design. Given its heavily
vegetated condition and historic lack of water, I will not review