PERMFILE104169

• Permit No: M1985219
• IBM Index Class Name: Permit File
• Doc Date: 1/17/1986
• Doc Name: PARKERSON PIT PERMIT APPLICATION
• From: WESTERN COLO TESTING INC
• To: MLR
• Media Type: D
• Archive: No

'~~ WESTERN .,.. _.,._ ..oad, suite 8-101
COLORADO Grand )unction, Colorado 81505
TESTING, [phone]
INC.
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JAN 17 1986 .Tanuary 9, 1986
MINED LAND RECLAMATION ~:~.~
1313 Sherman Street .t.i., 9 ;~~,~;' ":~ ~"- ~ Job A 521017
423 Centennial Bldg. P.Mt;+-~~' ~ ~ „'.`-`" `'"~
Denver, Colorado 80203 ~;~Jb.~•~~~t~`'a4`~~ "
Attention: Mr. Jim McArdle,
Reclamation Specialist
Re: Parkerson Pit Permit Application
This additional information is provided for the Parkerson Pit
permit application as requested in your letter dated December
23, 1985.
EXHIBIT 8 - Mining Plan
The area of the pit having overburden will be stripped prior to
excavation. Sufficient overburden to be used for reclamation
will be stockpiled on the southerly end of the pit.
EXHIBIT D - Wildlife, Water, vegetation, Soils
it is not anticipated that free groundwater will be
encountered. Ground water is actually irrigation which has
penetrated through the silty surface soil, run to the bottom of
the gravel, and is located at the interface between the gravel
and underlying shale bedrock. This water expresses itself as
seeps at the exposed edges of the cross-section at the 32 Road
cut, the C 1/2 Road cut and at the palisade overlooking the
Colorado River.
One foot of gravel will be left in the pit bottom to allow seep
water to continue through it's traditional system and not draw
into the replaced overburden by capillarity. This will allow
irrigation of the site without accumulation of "alkali". A toe
trench at the base of the backslope will intercept any seep
from higher in the formation.
The pond presently on site is approximately 1/2 acre in size
and roughly five feet deep. It is filled by waste water from
irrigation runoff and seep water.
Runoff from the pit area will be impounded by leaving a one
foot high berm between the drainage and the pit floor. Annual
precipitation in the Grand .TUnction area is about eight inches
per year. It is anticipated that the small amount of water
impounded will evaporate or permeate into the gravel left on
the pit floor.