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 L
RECLAMATION COSTS (revised 6111/20)
The following information is provided to evaluate the amount
of bond needed when mining has reached a point where L.G.
Everist, Inc . has approximately 180 acres disturbed in some form
or another. Not all of the 180 acres will be disturbed as some
areas may be reservoirs that await certification and final
release and need no other work to reclaim them. The numbers
presented for each item are based on what is estimated to be
disturbed at the time when mining has impacted much of the areas
in Phase 1 , 1A, and 3 . At this mine, it will not be necessary to
import fill material to complete reclamation in Phase 1A, as
discussed in the Mining Plan. The RECLAMATION ACTIVITIES table
below shows the various items needed to reclaim the initial 3
phases once full production is taking place in that area . In
this scenario :
Phase 1 is the active mining area . There are 30 acres
stripped in front of the working face that is 2600 ft long (5 . 65
yds/lft) cut/fill
sloping) . Dewatering was calculated on the maximum pumping time
being just as mining ends on this phase leaving only the highwall
to be graded. That would require dewatering 64 . 31 acres to
finish cut-filling on the highwall and final side sloping
adjacent to the working face since it has not been certified.
All other slopes will be finished as mining progresses to limit
the amount of final sloping needed. Resoiling and seeding would
be required on 38 . 03 acres, 30 acres stripped and 8 . 03 bank slope
reclamation. The completed slurry wall is 7900 feet long at 43
ft . deep . No more than a 1000 foot section of bank armoring on
the south end will require placement at any time requiring 2 . 35
cy/lf of material (2350 cyds) . A stockpile of this material will
be maintained adjacent to the area it is needed so the only cost
is for placement . No QA/QC number is included since the walls
have been placed prior to mining beginning in any Phase .
Phase lA being used as a settling/fresh water pond. Bonding
is just if backfilling is needed. Material to complete back-
filling in this phase will be stockpiled on the south end of
Phase lA and North end of Phase 3 to reduce the haul distance .
There are 15 . 88 acres of backfilling to fill to a level that is 2
feet above the existing ground water elevation. No side sloping
L.G.Everist,Inc. Ragsdale Reservoirs June 11,2020