2020-06-16_PERMIT FILE - M2020007 ‎(7)‎

• Permit No: M2020007
• IBM Index Class Name: Permit File
• Doc Date: 6/16/2020
• Doc Name: Adequacy Review Response #2
• From: Environment, Inc.
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

EXHIBIT D MINING PLAN (CONT)
have already reclaimed the reservoir phase (including liner
certification, final grading of the reservoir slopes, and initial
seeding) , but the phase acreage is not yet released from the DRMS
permit (due only to vegetation growth) . L.G. Everist would file
Technical Revisions as needed to incorporate the changes .
Please refer to MAP EXHIBIT C-1 - MINING PLAN MAP during review of
the following text for the location of the areas discussed.
At any given time, mining and reclamation may be occurring in
one or more phases to accommodate the blending of materials, the
natural progression of mining from one Phase to the next, and the
relocation of the processing plant and settling ponds . This
"concurrent reclamation" allows for reclamation work being
completed in one phase while mining begins in another phase .
The "direction of mining" arrows on MAP EXHIBIT C-1 -MINING PLAN MAP
show the applicant ' s best guess on how mining will progress through
the mine areas at this time. Natural ground conditions and
unforeseen circumstances may necessitate changes to the mining
direction throughout the life of the mine .
The RECLAMATION COST ESTIMATE- EXHIBIT L is based on an estimated
disturbance area when the mine has been open for a few years . The
acreage disturbed may increase or decrease as mining progresses .
As mining moves from one Phase to another a bond review will be
completed prior to moving into the new area. In this review the
current bond would be compared with a cost to reclaim the next
phase, plus any reclamation left in the current disturbed area.
The in-progress items like, working face grading, reclaiming
stripped areas and armoring placement costs will be updated and
transfer to the new area. Reclamation activities in the existing
area will be reduced as appropriate if they are complete and the
Surety will be adjusted as needed. Initial mine development will
begin on the south end of Phase 3 and in Phase lA where the topsoil
and overburden will be stripped and stockpiled around the disturbed
area. Some of this material will be used to construct a sight berm
along the east sides of Phases lA and 3 to limit visibility from
Highway 85 into the active mining and processing areas . Any
material not used for the sight berm construction will be
stockpiled on the north end of Phase 3 for placement in Phase lA
once all sand and gravel have been mined. The berms will vary in
height depending on the area to be screened, with 3 : 1 .slopes on
each side. During the stripping process, any structures owned by
the Cannon Land Company that will not remain after reclamation is
complete will be removed and disposed of properly, this applies to
all Phases .
Mining will start on the south end of Phase lA and progress to
the north. The setbacks to be used are shown in the table on the
MAP EXHIBIT C-1 - MINING PLAN MAP. The aggregates will be removed and
stored on the Plant Site area in Phase 3 for processing. This
stage will then become a settling pond and excess overburden
backfill area, from the development of the reservoirs in Phase 1,
Phase 2 and Phase 3 .
As mentioned above, the proposed mining sequence may change
due to unforeseen circumstances such as market conditions,
variations in the natural deposit, agreement restrictions with
structure owners, etc . At this time, the plan is to mine them
L.G. Everist, Inc- Ragsdale Reservoirs June 11, 2020
D-6