PERMFILE126519

• Permit No: M2001001
• IBM Index Class Name: Permit File
• Doc Date: 3/21/2001
• Doc Name: CONSTRUCTION MATERIALS REGULAR 112 OPERATION RECLAMATION PERMIT APPLICATION FORM
• Media Type: D
• Archive: No

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• Exhibit Page 10
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p ~ STRIPPING: The initial year's mining area of 6.0 acres will be stripped to an estimated
ro depth of 2 feet and the topsoil stored in Stockpiles S3 and S4 (without screening, but
tL ~ would probably be screened later in the mining sequence before being used for
$,~ reclamation). This would create a noise and visual barrier to the south, which is the
~ o direction of the nearest houses (more than 500 feet distant). The stripping will be done
~ s on a yearly basis for the first three years. The stripped area will drain, with suitable
erosion and sediment control in accordance with the Surface Water Management Plan
~ (SWMP), to an existing pipe which discharges to the Dolores River.
INITIAL FACE WORK:
Mining will begin by the excavation of a ramp, from the stripped surface to a depth of
approximately 6-10 feet (for a total length of 250 feet to approximately elevation 7208, in
the eastern half of the area (Area 1A) for mining during Year 1 (southeast corner of the
permit area). This level is chosen to allow continued gravity drainage of any water
collecting in the pit, through the existing pipe, in accordance with the SWMP, and to
prevent or reduce loss of ground water to evaporation from ponds. Mining may be done
in several lifts to reduce face height, and allow for better drainage, but will be less than
10 feet.
During this period, the processing plant will be located on the western side of Year 1's
mining area (Area A2), which has been stripped but not mined. Stockpiles of processed
material will be located to create as much a noise barrier as possible to the south of the
processing plant. Excess material from screening and washing will be placed in
Stockpile S5, which will screen operations from the highway, extending north from
Stockpile S3.
The initial face will be expanded to include the entire southeast corner of the permit
area, ranging from 3.5 to 10.0 feet deep (5.5 to 12.0 below original ground level), with
the floor of the pit sloped at a 0.5% grade for drainage.
EXPANSION OF INITIAL FACE AND FIRST YEAR MINING
Once the upper level of the Area 1A is mined, the processing plant.will be relocated to
that area, and Area 1 B, (the western portion of Year 1, southwest corner of the site) will
also have the upper level mined. A sediment basin will be excavated in the southeast
corner of the site (south of the relocated plant), approximately 250 by 150 feet and up to
20 feet deep, to improve drainage of subsurface water and reduce sediment, as well as
collect material from washing of sand and gravel. This area will likely remain in open
water from this period on, and forms the basis of the permanent ponds on the site.
During Year 1, Stockpiles S1 through S5 will be built.
MINING OF THE UPPER LEVEL
In Year 2, mining of the central portion of the upper level will be done, stripping and
mining an area of 6.6 acres. After stripping 2 feet of soil, raw material will be removed
at a depth of from 5.5 to 10.0 feet (7.5 to 12.0 feet below original ground level). The
processing plant will be set up in the same location as in the beginning of Year 1, near
berms to reduce noise to the south. A drainage ditch of up to 50 by 600 feet and up to
15 feet deep will be excavated (connecting to the sediment basin) to improve drainage
and transport sediment to the basin. During Year 2, Stockpiles S6 and S7 will be built.
In Year 3, mining of the north end of the upper level will be done, stripping and mining
an area of 1.67 acres. After stripping 2 feet of soil, raw material will be removed at a
depth of from 6.9 to 8.4 feet (8.9 to 10.4 feet below original ground level). The
Four States Aggregates, LLC 15 MAR 2001
Application for Permit: Line Camp Pit M-2001-001 FSA-LCP-D2-001