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2009-08-28_APPLICATION CORRESPONDENCE - C2009087 (2)
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2009-08-28_APPLICATION CORRESPONDENCE - C2009087 (2)
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Last modified
8/24/2016 3:55:05 PM
Creation date
9/1/2009 2:59:26 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C2009087
IBM Index Class Name
APPLICATION CORRESPONDENCE
Doc Date
8/28/2009
Doc Name
Preliminary Adequacy Review of Permit
From
DRMS
To
Peabody Energy Corporation
Email Name
TAK
Media Type
D
Archive
No
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Mr. Vern Pfannenstiel <br />August 28, 2009 <br />Section 2.05.4(2)(b) <br />Page 6 <br />26. Exhibit 2.05-35 includes an inventory of structures, as well as reclamation plans <br />for proposed disturbance areas. The permit application does not include a <br />reclamation cost estimate. The Division is evaluating reclamation costs. SCCC <br />has informed the Division there will be changes to the location of the facilities. <br />This will affect haul distances and facilities construction. The Division is <br />currently calculating reclamation costs based upon the information provided in <br />the initial permit application submittal. <br />Section 2.05.6(3) <br />27. Page 30 of Robson and Stewart (1990) mentions gains in flow that Grassy Creek <br />has in its upper reach where it crosses outcrops of the Trout Creek Sandstone and <br />Williams Fork Formation. Please add an evaluation of the potential for the <br />proposed mining to affect these gains in flow and the flows from springs around <br />the southwestern perimeter of the permit area. <br />28. Please add a prediction of the maximum elevation of flooding in the workings <br />after mining ceases. <br />29. Please add an estimate of the time duration of elevated dissolved solids in coal <br />gob and spoil leachates. Analogy with Williams and Clark's (1994) estimates <br />would be adequate. <br />Section 2.06.8 <br />30. The Division will make a final determination regarding the potential for <br />subirrigation and the existence of an alluvial valley floor in Scotchman's Gulch, <br />in the area near its confluence with Grassy Creek. To aid the determination, <br />please provide an east-west oriented, diagrammatic hydrogeologic cross-section <br />across Scotchman's Gulch, at a location approximately 300 feet south of County <br />Road 27. Please draw the cross-section using a horizontal scale of <br />approximately 1 inch = 500 feet, and an approximate vertical scale of 1 inch = 10 <br />feet. Please show the following features in the cross-section. <br />a) Land surface (topographic profile), <br />b) Soil, <br />c) Alluvium, <br />d) Expected water level in the Scotchman's Gulch channel during the month of <br />July (this month is assumed to be the month that plants are most likely to <br />benefit from subirrigation), <br />e) Elevation of the top of the saturated alluvium, <br />f) Inferred elevation of the capillary fringe in Scotchman's Gulch alluvium, and <br />g) Maximum rooting depth of plants. <br />An alternative to providing the cross-section would be to provide an evaluation <br />based on the types of information listed in Rule 1.04(126).
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