1999-01-27_PERMIT FILE - M1999006

• Permit No: M1999006
• IBM Index Class Name: Permit File
• Doc Date: 1/27/1999
• Doc Name: CONSTRUCTION MATERIALS REGULAR 112 OPERATION RECLAMATION PERMIT APPLICATION FORM
• Media Type: D
• Archive: No

Exhibit D - Mi�g Plan
Location and volume of soil, in proportion to the area of affected land remaining above water and
requiring soil replacement, will be reported in the First Annual Report to the Colorado Division of
Minerals and Geology [DMG1. Since the majority of the area of extraction will result in ponds
with a water level [groundwater elevation] varying approximately five [5.0±1 to ten [10±] feet from
the original surface, subsequent to excavation, the nominal width of affected land remaining above
water and requiring resoiling and revegetation will be approximately 50.0±feet [±25.0 feet in
variation].
For purposes of establishing initial warranty, that area comprising the Plant Site [plant/stockpiles
and wash pond] plus 10±acres of soil salvage [=8, 067.0±cu. yds. of soil] for redistribution
along intended pond perimeters, will define the limits of affected lands during the first year of
operation. This will accommodate the resoiling of 8,712.0±linear feet of pond perimeter to an
average depth of 6.0±inches, with an above water shoreline averaging 50.0±feet in width.
8,712.0±feet of perimeter shoreline encompasses an area bounded on four sides of 2,178.0±feet,
or 109.0±acres of extraction. Soil stockpile locations and area measurements of affected land to
assure adequate warranty will be verified with each subsequent Annual Report to the DMG.
Resource Recovery: Following soil salvage, the balance of materials will be extracted to the
depth of unconsolidated or weathered shale, and either placed directly into stockpiles as pit run,or
manipulated at the plant site by screening,crushing, washing, and other methods to size and
properly dimension the earth product into merchantable materials for sale. Recovery will
commence West to East on a line or series of lines along the entire Southern permit boundary of
Section 28 and proceed Northward in IV and V. Extraction will tend to rotate counter-clockwise
into VI, finally entering the plant site location (II]which will be accommodated to allow for the
completion of resource recovery and eventual site closure and reclamation in approximately 20±to
30± years.
There are no sequences or phases to over the shoulder extraction. Instead, extraction is `pulsed'
according to market conditions. As such, the rate of mining and subsequent reclamation will slow
or quicken according to influences on the market, including the influences of weather.
Except for minor and temporary anomalies,slopes resulting from extraction activities will be
established by concurrent grading to 3h:1 v,although initial extraction may result in temporary
slopes up to Ih:Iv until backfilled with shale,overburden and soil. The majority of resulting
slopes will drain internally into the future pond basin and are not anticipated to result in any off-site
impacts due to erosion or stormwater runoff. The gentle to flat topography of the native site tends
to aid in overall stability above the planned areas of extraction. While some erosion of mined
slopes will be evident subsequent to extraction,over the shoulder soil placement and revegetation
(delineated under Exhibit E- Reclamation Plan)will provide cover for both near and long term
stability of affected lands remaining above water level of the finished ponds.
During extraction, a vertical advancing pit wall (front) is not anticipated due to the use of scrapers
in the removal and internal transport of extracted materials to the plant/stockpile location. The
scrapers traverse best over flat grades removing material in a series of in long thin slices resulting
in broad advancing front. Slopes will typically be 3h:ly,or flatter, along the perimeter and 5h:ly
or flatter along the advancing front of the area of extraction. Regardless, the maximum length of
the advancing front would never exceed the length of one side of a quarter section of land,or
1,320.0± feet.
The near extent of extraction is identified by a 25±foot variable line set back uniformly at 25±feet
from the edge of property lines; and, the centerline of field located underground gas lines or other
underground facilities, irrigation ditches and seep ditch,wells and other structures. Specific
EXHIBIT D- Mining Plan 4
Colorado Division of Mineral s & Geology Regular Impact [t 12] Construction Material Permit
Sand Land, Inc. - Kurtz Resource Recovery & Development Project - January 1999