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2014-06-04_REVISION - C1980005
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2014-06-04_REVISION - C1980005
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Entry Properties
Last modified
8/24/2016 5:44:31 PM
Creation date
6/4/2014 9:55:37 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
Revision
Doc Date
6/4/2014
Doc Name
Bond Release Request
From
Seneca Coal Company
To
DRMS
Type & Sequence
SL6
Email Name
JDM
DIH
Media Type
D
Archive
No
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Seneca 11 Mine <br />SL -6 Phase 111 Bond Release Request <br />2193.0 — (0.9 x 835.1) = 13.78 <br />r` 1119654.6 (0.81 x 309914.9) <br />30 + 30 <br />a <br />SEs <br />d G: <br />fSG: = 4 <br />SEb,. + (0.9 * SEA, f) <br />71b► — 1 71 ref— 1 <br />— ( 1119654.6 (0.81 x 309914.9)4 — <br />dfsG. — 30 30 _ 41.38 or 41 <br />x193.2 4 + (0.9 = 101.6)' <br />k30- 1 30- 1 <br />June 2014 <br />Since critical tc = 0.851 (one - tailed, alpha = 0.2, 41 df,,) and t, (13.78) is greater than this critical <br />value, the hypothesis that the reclamation is less than or equal to 90% of the standard is rejected <br />and reclamation success for 2011 Phase III BRB -5 herbaceous production relative to the <br />Mountain Brush Reference area is demonstrated. <br />Similarly, a two- sample t -test of the Reverse Null Hypothesis with Satterthwaite's Adjustment <br />was conducted to assert that the 2011 BRB -5 allowable herbaceous production is <br />indistinguishable from the Sagebrush Reference Area allowable herbaceous production as <br />follows: <br />tc k b,. — 0.93F" f <br />Sb2r + (0.9 * S"f)� <br />11 b,- 71 ref <br />2193.0 — (0.9 r 1286.5) = 16.41 <br />r` 1119654.6 (0.81 * 162650.9) <br />30 + 30 <br />d — SE 4; <br />SEbr + (0.9 > SE,, f) 1 <br />71br — 1 7i?.Ff — 1 J <br />— ( 1119654.6 + (0.81 * 162650.9)1 — <br />J <br />d fsG; — 30 30 — 35.7 or 36 <br />193.2 • + (0.9 * 76.2)4 <br />k30- 1 30- 1 <br />12 <br />
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