2016-04-06_PERMIT FILE - C1982056 ‎(3)‎

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 4/6/2016
• Doc Name: Pages 2.05-65 to 2.05-197.3 part 2
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans Part 2
• Media Type: D
• Archive: Yes

TC's bond reclamation cost estimate for the CRDA Expansion takes into account the consideration that bond
monies have already been posted for the existing Refuse Pile, which includes the entire eastern side (approximately
40 acres) that will be redisturbed by the proposed CRDA Expansion. This existing bond (amount corresponding to
acres to be redisturbed is approximately $360K), along with the calculated bond coverage for a 50 acre area
(approximately $380K), addresses bonding for the initial area of disturbance, as shown on Drawing C-102 in
Exhibit 26C. This initial bonded area includes redisturbance of the eastern side of the existing RDA
(approximately 40 acres), the initial CRDA bonded disturbance area (approximately 30.3 acres), haulroad
disturbance (approximately 2.4 acres), stockpile and ditch disturbance (approximately 9.4 acres), stockpile access
corridors (0.4 acres), and a bonded buffer of approximately 7.5 acres to address any minor unplanned disturbances.
With a total facility life of approximately 14 to 20 years, it is anticipated that the remaining 50 acres of the total
CRDA expansion area of 140 acres will be bonded in two future bond increments of approximately 20-30 acres
each (each increment will be approximately $150K - $230K, depending on size). It is anticipated that Bond
Increment I will occur 3-5 years in the future, and that Bond Increment 11 will occur 7-10 years in the future.
Consistent with the constraints inherent in a cumulative bonding approach, TC will clearly delineate bonded areas,
will limit disturbance to those areas, and will work with the CDRMS to determine and maintain adequate bond
coverage for all activities.
Concerning the Fish Creek Tipple, no excess spoil or underground development waste will be generated in connection
with the operation. Thus, the requirements of this section and Rule 4.09 are not applicable.
(9) Return of Coal Mine Waste to Abandoned Workings
(a) Each plan shall describe the design operation and maintenance of any proposed coal
processing mine waste disposal facility including flow diagrams and any other necessary drawings and maps, which
must meet the standards of 2 10 for the approval of both the Division and the Mine Safety and Health Administration
in accordance with 4.11.3.
(b) Each plan shall describe the source and quality of waste to be stored, area to be backfilled,
percent of the mine void to be filled method of constructing underground retaining walls, influence of the backfilling
operation on active underground mine operations surface area to be supported by the backfill and the anticipated
Occurrence of surface effects following backfilling.
(c) The applicant shall describe the source of hydraulic transport medium, method of dewatering
the placed backfill retainment of water underground treatment of water if released to surface streams, and the effect on
the hydrologic regime.
(d) The plan shall describe each permanent monitoring well to be located in the backfilled
area the stratum underlving the mined coal and gradient from the backfilled area.
(e) The requirements of 2.05.3 shall also apply to pneumatic backfilling _• operations, except
where the operations are exempted by the Division from requirements specifyinydrologic monitoring.
TCC returns the thickener underflow generated at both Washplants I and II to the abandoned and sealed
underground mine workings. When Washplant I initially began operations, the thickener underflow was partially
dewatered using a filter -press, and this material was then combined with the coarse refuse and hauled to the Refuse
Pile for placement. Due to handling and placement problems, TCC modified the fine refuse handling method. and
began pumping the thickener underflow into the abandoned mine workings in the Eastern Mining District (EMD).
as opposed to mixing it with the coarse refuse for placement on the Refuse Pile.
With both Washplants I and II operating, the thickener underflow is typically a 15 to 25 percent solids, 300 to 550
gpm slurry mixture of rock and coal fines (28 mesh x 0). Exhibit 9C, Underflow Chemical Characterization.
provides data on selected chemical constituents found in the thickener underflow. Tile water quality of the slurry is
consistent with that of typical spoils water generated at the adjacent CYCC surface mine. The slurry mixture is
piped to the sealed mine workings in the EMD, where the fines settle -out, and the decant water flows to a sump and
is recycled back to the washplants. At the full coal fines refuse discharge rate. approximately l .6MM ff of coal
PR15-11 2.05-97.6 02/01-16