2012-04-27_REVISION - C2009087

• Permit No: C2009087
• IBM Index Class Name: REVISION
• Doc Date: 4/27/2012
• Doc Name: Updates to the Vegetation Section
• From: Peabody Sage Creek Mining, LLC
• To: DRMS
• Type & Sequence: SL1
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

PSCM PHASE II COVER
ANNUAL DEDUCTION CALCULATION:
Total First Hit Vegetation Cover 39.60
Noxious Weed Cover 0.44
Total Minus Noxious 39.16
Allowable Annual Cover Limit X 0.1
Allowable Annual Cover 3.92
Actual Annual Cover (w /o noxious annuals) 4.43
Non - allowable Annual Cover (zero in calculations
below if positive) -0.5
ALLOWABLE COVER CALCULATION
Total First Hit Vegetation Cover 39.60
Noxious Weed Cover 0.44
Total Minus Noxious 39.16
Excess Non - allowable Annual Cover Deduction 0.5
Woody Plants - Not Allowed 1.2
Mean Allowable First Hit Cover 37.45
Standard Deviation of Mean Allowable Cover 14.23
Sample Size 30
Minimum Adequate Sample Size 25
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