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2023-11-20_REVISION - M1997027 (3)
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2023-11-20_REVISION - M1997027 (3)
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Last modified
11/20/2023 9:48:34 AM
Creation date
11/20/2023 9:33:58 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M1997027
IBM Index Class Name
Revision
Doc Date
11/20/2023
Doc Name Note
Exhibits D and E2
Doc Name
Adequacy Review Response #3
From
Gray Rock Aggregate Company, LLC
To
DRMS
Type & Sequence
TR3
Email Name
RDZ
MAC
Media Type
D
Archive
No
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Moonscape Pit, November 2023 D2 <br /> RECLAMATION PLAN EXHIBIT E <br /> 1.GENERAL RECLAMATION PLAN <br /> The original reclamation plan was to reclaim the site as rangeland. Since the pit was opened, <br /> the site has changed hands a few times. The current owner and operator has a residence <br /> immediately adjacent to the permit boundary and wishes to change the end use of the site to <br /> general agriculture and be able to use the pit area for various agricultural endeavors when <br /> mining ends. He wants to leave the pit floor as gravel without vegetation to have flexibility for <br /> general agricultural uses which may include hay storage, equipment storage, animal care <br /> facilities, etc. <br /> When mining is complete, the pit floor will be a gravel based surface sloping gently to the <br /> northwest at approximately 1 to 2%grade from the 3H:1V slopes to the east all the way to the <br /> edge of the mesa. The material yet to be mined is approximately 14 feet above the current mine <br /> out area and after mining, no backfill is required to bring this area to the grade of the existing <br /> mined area. Topsoil will be replaced on 3H:1V slope created on the perimeter of the pit. Most <br /> of the terrain adjacent to the pit on the south, west and north slopes down from the pit <br /> boundary and requires no further grading. When the area remaining to be mined is mined, it <br /> will create 1100 feet of 3H:1V slope into the pit along the north and east sides of the area to be <br /> mine as shown in Exhibits C and F. This slope will be created during excavation of the gravel and <br /> topsoil will be placed on it as soon as is practical. <br /> 2.Topsoil Replacement <br /> There will be no topsoil replaced on the floor of the pit as it is left for agricultural uses. A <br /> minimum of 12 inches of topsoil will be replaced on the 1100 feet of 3H:1V slope created by <br /> excavation of the area remaining to be mined. With a final high wall of 15 feet and horizontal <br /> distance of 45 feet, the length of slope from top to bottom is less than 50 feet. (50 x 1100 x 1) / <br /> 27 = 2037 cubic yards of topsoil. The current topsoil stockpile has approximately 7,000 cubic <br /> yards of topsoil with the potential for another 3,000 cubic yards when the area to be mined is <br />
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