PERMFILE41171

• Permit No: M1996082
• IBM Index Class Name: Permit File
• Doc Date: 10/28/1996
• Doc Name: 112 PERMIT APPLICATION BLAIR MESA GRAVEL PIT RIO BLANCO CNTY
• From: CORN CONSTRUCTION CO
• To: DMG
• Media Type: D
• Archive: No

• ~ •
Exhibit D -Mining Plan
The subject property will be used to develop a commercial gravel source to meet both private and public gravel
demands. The site is being developed to provide gravel for our project on Highway 64 and for future work in
the area. In rnnjunction with the development of the gravel resource, gravel processing and the manufacturing
of hot asphalt pavement is planned. All equipment used to process gravel and manufacture asphalt pavement
will be properly permitted by the State Air Quality Division. Further, State permits will be obtained for fugitive
dust and stormwater az required. The area for consideration includes 40 acres. Depending on the amount of
recoverable gravel we anticipate the pit's life to be 10 years.
(a) Mining will be accomplished by first removing the topsoil and overburden from the gravel
deposit. The topsoil and overburden will be kept in separate stockpiles. Our investigation indicates that
overburden is approximately 7 feet deep and that the gravel seam is also approximately 7 feet deep. Gravel will
be mined using front end loaders. Either front end loaders or ruck wcks will be used to haul pit run materials
from the mining site to the processing plant.
(b) Earthmoving equipment will be used to strip the pit and stockpile and/or place [op soil and
overburden. We plan to use a combination of scrapers and dozers to perform the earthmoving work. It is our
plan to reclaim as we go. The first phase of the mining will involve placing overburden material in 1.2 acre
site immediately east of Phase 1. No mining will occur on the 1.2 acre site. This site will consume a portion of
the overburden from our development in Phase 1. The overburden placed on the 1.2 acre site will be wvered
with top soil and seeded. Thereafter, as we continue development in Phase 1, overburden will be placed in
previously mined areas and covered with top soil and seeded. It is our intention to minimize the disturbance of
the affected land and to keep the amount of stockpiled top soil and overburden at a minimum. An all weather
gravel haul road from Highway 64 to the site will be construMed from an existing approach. In constructing
the haul road we will utilize the existing private unimproved road up to a point approximately 400 feet from the
affected land. We will then construct a new portion of road to the affected land approximately 400 feet long.
The total haul road will be approximately 1,600 feet long and will be 30 feet wide. We will maintain the road
throughout the life of the pit.
(c) In the course of developing the pit, we will not divert any drainage or impound any water.
The mining activity will create a retention area that will oNy retain surface runoff for a short period of time
after snow melt and storm events.
(d) The size of the area of the affected lands to be worked a[ any one lime wNd include up to
20.6 acres, however, we anticipate the actual amount disturbed at any one time to be less. Our best estimate of
actual disturbed area is 10-12 acres. In the event of full development caused by signilican[ demands it is
possible that we could be mining in Phase 2, processing in a portion of Phase 1, with reclamation completed in
the remaining portion of Phase 1 and the adjoining 1.2 acre overburden stockpile site. Depending on the
overall development of the pit, this scenario could apply to any wmbination of the Phases shown on the map.
(e) Mining is scheduled to begin in early February 1997. As stated above, the initial purpose of
the pit is to supply gravel for our CDOT project on Highway 64 west of Meeker. In the first year of the mining
we will strip an area sufficient to meet the needs of the project and 10,000 tons of additional finished product
for commercial sales. During the first year, the 1.2 acre overburden stockpile site will be re-graded and
contoured to meet the reclamation plan and covered with top soil and seeded. In 1997 or 199g, we will bid at
least one more scheduled CDOT Highway 64 project which if we are the successful bidder we will provide
materials to the project from the pit. Also at that time we anticipate producing additional rnmmercial gravel.
In future years, demand from Rio Blanco County and other commercial users will drive the demand for gravel
and further mining of the pit. We believe the long term commitment of the land owner and our knowledge of
highway construction make the pit a viable source. In the same manner we also know that the responsible
approach to the pit is to limit disturbances to only the amount of gravel needed and to reclaim previously mined
and unused areas as soon as possible.