2012-05-14_REVISION - C1980005

• Permit No: C1980005
• IBM Index Class Name: REVISION
• Doc Date: 5/14/2012
• Doc Name: Updates to the Vegetation Section
• From: Seneca Coal Company
• To: DRMS
• Type & Sequence: SL5
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

Adjustments to Cover Values for Disallowed Components
As discussed above, CDRMS regulations require that certain portions of vegetation cover be removed for
purposes of assessment of revegetation success. Below are tables that detail the correction needed to
each of the components in the assessment of revegetation success.
SENECA II PHASE II COVER
ANNUAL DEDUCTION CALCULATION:
Total First Hit Vegetation Cover 44.40
Noxious Weed Cover 0.95
Total Minus Noxious 43.45
Allowable Annual Cover Limit X 0.1
Allowable Annual Cover 4.35
Actual Annual Cover (w /o noxious annuals) 6.33
Non - allowable Annual Cover (zero in calculations -2 0
below if positive)
ALLOWABLE COVER CALCULATION
Total First Hit Vegetation Cover 44.40
Noxious Weed Cover 0.95
Total Minus Noxious 43.45
Excess Non - allowable Annual Cover Deduction 2.0
Woody Plants - Not Allowed 1.5
Mean Allowable Cover 40.0
Standard Deviation of Mean Allowable Cover 9.39
Sample Size 21
Minimum Adequate Sample Size 10
10