REV12215

• Permit No: C1984063
• IBM Index Class Name: Revision
• Doc Date: 7/26/1989
• Doc Name: EASTSIDE MINE PERMIT RENEWAL
• From: MLRD
• To: HARRY RANNEY
• Type & Sequence: RN1
• Media Type: D
• Archive: No

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999
STRTE OF COLORADO
Roy Romer, Govei
DEPARTMENT OF NATURALRESOURCES
MINED LAND RECLAMATION DIVISION
FRED R. BANTA, Director
DATE: July 26, 1989
T0: Harry Ranney
FROM: Tony Waldron W
RE: Eastside Mine Permit Renewal
As requested, I have reviewed the requested sections in the Eastside permit
application. In general, there were no problems wiU1 the Soils Resource
Information, Prime Farmland Investigation, Topsoil (removal and storage),
Reclamation Plan, or Timetables. The one area where I do have some concerns
is the Topsoil (redistribution) 2.05.4(2)(c). On pages 108 and 109 the
operator discusses the salvage and redistribution of topsoil.
When discussing the waste disposal area, the operator states that 9,300 yards
of material will be available for salvage. 6,000 yards will be needed to
cover the waste pile with two feet of non-toxic cover leaving 3,300 yards
for use elsewhere. However, when discussing the salvage of topsoil from the
proposed mine site office, the operator indicates that 4,960 yards of material
is available for salvage and then assumes that there will be a 20~ swell
factor to end up with a total volume of 5,950 cubic yards. Coincidently,
this provides enough extra topsoil (approximately 1,000 yards) that when added
to the 3,300 yards from the waste pile will cover the current office and coal
storage area with at least six inches of topsoil.
It is likely that the material will increase in volume slightly upon initial
stripping and stockpiling. However, the material will probably settle to
approximate original volumes after a sustained amount of time in a topsoil
stockpile and upon reapplication. Therefore, for the sake of consistency,
a couple of questions need to be addressed in the application.
The operator should justify the 20~ swell factor utilized in
calculating topsoil volume from the mine site office.
2. Why isn't a swell factor used for the waste disposal material?
3. Will any or all of this material (both waste disposal and mine
site and office areas) be stockpiled and for how long?
Upon receiving a satisfactory response to these questions, I will have no
further adequacy issues. If you have any questions, please see me.
/en
82i~ Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. [phone]