2011-12-01_APPLICATION CORRESPONDENCE - C2010089 ‎(2)‎

• Permit No: C2010089
• IBM Index Class Name: Application Correspondence
• Doc Date: 12/1/2011
• Doc Name: Preliminary Adequacy Review No. 2
• From: Western Fuels Association
• To: DRMS
• Email Name: MLT
• Email Name: SB1
• Media Type: D
• Archive: No

disturbed area ponds, ditches and culverts, appears on page 2 of Appendix 2.05.3(4) -1.
However, there do not appear to be stated justifications for the use of a curve number of
79 for culverts C -6A and C -6B and the use of a curve number of 89 for culvert C -12. The
Division requests that the appropriate section of the permit application be updated to
detail the justifications for using the curve numbers of 79 and 89 in these three culvert
designs.
Response — Justification for the use of curve numbers for culverts C -6A, C -6B and C -12
are included in pages 2 -3 of Section 2.05.3(4).
25. DRMS: The Division has no further concerns with this question. Map 2.05.3(3) -1 was
revised in the submittal dated May 26, 2011. However, the Division has an additional
question regarding topsoil.
a) On page 8 of Section 2.05.3(4), WFC has requested a small area exemption designation
for the topsoil berm that will be constructed in advance of stripping. However, a small
area exemption is defined under Rule 4.05.2(3) and requires a demonstration that the
area will meet sediment limits. This does not appear to apply in this situation. In order
to avoid any confusion, please revise the discussion on page 8 by using a term other
than a small area exemption when referring to this berm.
Response — The text regarding the small area exemption has been deleted since all runoff
is directed to sediment ponds.
2.05.3(5) — Topsoil
1. DRMS: A reference was added as requested. Please change the font for the section header
to Bold, consistent with the format of the surrounding paragraphs.
Response — The font has been changed to bold on page 5 of Section 2.05.3.
2. In accordance with the requirements of 2.05.3(5), please also specify the volume(s) of
topsoil to be stockpiled and incorporate this information into the PAP text and map. Please
describe the methods that will be used to achieve compliance with the topsoil storage
requirements of 4.06.3.
Response — The topsoil stockpile volume is specified on pages 12 in Section 2.05.4(2)(d)
Topsoil Redistribution and Map 2.05.2 -1
Mine Plan. Text has been added on page 16 -17 of Section 2.05.4(2)(d) to describe the
methods that will be used to achieve compliance with topsoil storage requirements of
4.06.3.
2.05.3(6) — Overburden
1. DRMS: A reference was added as requested. Please change the font for the section header
to Bold, consistent with the format of the surrounding paragraphs.
Response — The font has been changed to bold on page 5 of Section 2.05.3.
2. DRMS: We have not yet conducted a thorough review of the information provided.
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