2018-08-20_PERMIT FILE - C1981012A

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 8/20/2018
• Section_Exhibit Name: Section 2.05 Operation and Reclamation Plan
• Media Type: D
• Archive: Yes

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regard to the topsoil resources currently available for reclamation, the topsoil resources
required, and the necessary reclamation bonding calculation.
In scenario 41, if the mine were to resume operations early within the next permit term,
the next phase of stripping operations, as approved and shown in Table 24, would
immediately need to commence in order to allow for the required space to dispose of
the 800,000 -1.5 million tons of refuse generated each year from prep plant operations.
This continued, sequential growth of the RDA would eventually result in an excess of
stockpiled topsoil available for reclamation purposes, as discussed above. Additional
areas for storage near the RDA surface will likely need to be permitted or the topsoil
may be hauled to and stored in approved locations at the facility area.
However, in scenario #2, TC status, (the current mine status) and with no reliable
estimate for resumption of operations, the mine is currently at a deficit of stockpiled
topsoil necessary to complete the reclamation plan as currently approved and for those
areas presently disturbed. This deficit would persist as long as the mine remains in
temporary cessation. Consequently, the DRMS is requiring, for reclamation bonding
purposes, that a cost for importation of topsoil be included in the MT6 update to the
Reclamation Cost Estimate (RCE) to account for this topsoil deficit.
To estimate the topsoil deficit is a simple matter of subtracting the volume of topsoil
needed from the volume available in stockpile, as presented in the preceding
paragraphs ;
44,589 LCY(TS needed) — 30,026 LCY(available) = 14,563 LCY(import)
Until operations commence and conditions change at the RDA with regard to
additional stripping and stockpiling of topsoil, 14,705 LCY of topsoil will be required
for importation. Costs of importation of this topsoil are included in the RCE as a result
of the recalculation done for MT6.
The Operator will salvage stockpile and stabilize all topsoil according to the
performance standards in Section 4.06. Topsoil will be removed after all vegetation
that would interfere with salvaging operations is cleared. Topsoil will be salvaged to a
depth as described in the above plan and as discussed in the two paragraphs below.
The Operator will not be selectively handling topsoil, subsoil or parent material.
During the current permit term the Operator does not anticipate using selected parent
material as a topsoil substitute.
The cut area for the Bates Portal face up causes an increase in the disturbed area of
1.57 acres as indicated on Figure 14a. There is an estimated cut volume of 39,000 CY.
The estimated depth of topsoil to be removed is based on the SCS soil data included in
Exhibit 14 Soils Information. The soil in the area has been classified at the NE
Dargol-Fuera-Vamer Complex. The typical topsoil layer for this soil type is 5 inches
thick with a sub soil of 23 inches over siltstone. Depth to bedrock ranges from 20 to 40
inches. The actual topsoil and subsoil depth will be evaluated at the time of
construction. Assuming 9 inches of topsoil, 1,900 BCY will be relocated to topsoil
Section 2.05 RN -6 10/17/2016