2015-06-22_PERMIT FILE - C1981018A ‎(3)‎

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 6/22/2015
• Section_Exhibit Name: Section V. Mine Surface Facilities Reclamation Plan
• Media Type: D
• Archive: Yes

• DRMS was requested to lower the success standard for woody stem density as the reference
area contained over 3,500 stems per acre. It seemed unlikely that this standard could be
achieved within the ten year bond release period without replanting the seedlings. Through
TR45, DRMS reduced this density to 500 stems per acre.
• As per Greystone Consultants, a variance application requesting 24 inches of soil cover would be
appropriate given the vegetative and soils data collected to date and with data collected at other
mines in the state which indicate that revegetation success can be achieved with a 24 inch soil
cover.
A copy of Greystone's report is found at the end of this section as Appendix "A". In response to
TR45, DRMS lowered the cover requirement to 30 inches with a minimum of 12 inches of topsoil.
V.H Removal, Storage and Redistribution of Topsoil and Subsoil
All areas to be disturbed at any time during the construction, operation, or reclamation of the mine
and its surface facilities will have available topsoil or other suitable growth media separately removed
and segregated from other fill material. Available topsoil was determined from the soil assessment
contained in Section 11.1. Topsoil or other suitable growth media are stockpiled in various locations to
be used during final reclamation. Disturbed areas to be covered with topsoil are indicated on Maps
43, 44, 45 and 46 ("D" Portal), Map 55 (Water Tank Area), Map 92 (Alluvial Wells), Map 89
(Ventilation Entry), Map 77 (Refuse Area 1), Map 77A (Refuse Area 5a), Map 150 (Refuse Area
2/3/4), Map 151 (B Seam ventilation shaft and access) and Map 104 (railroad loadout area). Roads
which are to be reclaimed will be covered with topsoil as shown on Map 69 (Haul Road) and Map 55
(Water Tank Road). In addition, all areas disturbed during the removal of roads, conveyors, or utilities
will be covered with topsoil. A summary of the disturbed areas is shown in Table V-3.
Before topsoil removal, all trees and large brush are cleared and placed in windrows. Grass, weeds
and small brush are not separated from the topsoil. Grass, weeds and small brush intermixed with
the topsoil aid in preventing over compaction and adds organic material to the stockpiled topsoil.
Topsoil is stripped and transported to the stockpiles by scrapers or front-end loaders and trucks. In
some cases where large amounts of rock fragments are intermixed with the topsoil, it might be
necessary to strip the topsoil with dozers and then transport it to the stockpiles via front-end loaders
and trucks. In order to prevent over compaction during stockpiling, compaction water is not used and
driving over the deposited soil is limited to only that which is necessary to stockpile the material.
During construction, topsoil was stripped to various depths depending on soil type and site specific
conditions, as indicated on Map 28 ("D" Portal Area), Map 52 (Water Storage Area and Access
Road), Maps 70-75 (Refuse Haul Road and Plant Access Road), Map 82 (Refuse Area), Map 90
(Alluvial Well Area), and Map 150 (B -Seam ventilation shaft facility and access road). There was no
topsoil at the Ventilation Entry Area or associated access road. In the refuse disposal area only as
much material as required to obtain uniform reclaimed topsoil depth (near the average topsoil depth)
Minor Revision #164 (05/2015) V-23