2011-03-30_REPORT - C1980005 ‎(2)‎

• Permit No: C1980005
• IBM Index Class Name: REPORT
• Doc Date: 3/30/2011
• Doc Name: 2010 Revegetation Report Part 2
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Reveg Monitoring Report
• Email Name: JDM
• Media Type: D
• Archive: No

• Total Minus Noxious 71.17
Excess Non - allowable Annual Cover Deduction - 0.0
Woody Plants - Not Allowed - 58.40
Mean Allowable Cover 12,77
Standard Deviation of Mean Allowable Cover 5.10
Sample Size 15
Minimum Adequate Sample Size 29
As can be seen, sample adequacy based on first -hit allowable herbaceous cover was not
achieved. Hence, in accordance with a proposal to address this problem for use of the Mountain
Brush Reference Area discussed with and approved by DRMS (see Appendix 7), evaluation of
sample adequacy based on all -hit data was undertaken:
ANNUAL DEDUCTION CALCULATION:
Total All Hit Vegetation Cover
95.00
Noxious Weed Cover
- 0.47
Total Minus Noxious
94.53
Allowable Annual Cover Limit
X 0.1
Allowable Annual Cover
9.45
Actual Annual Cover (w /o noxious annuals)
- 1.23
• Non- allowable Annual Cover (zero in calculations
8.2
below if positive)
ALLOWABLE ALL - HITCOVER CALCULATION
Total All Hit Vegetation Cover
95.00
Noxious Weed Cover
- 0.47
Total Minus Noxious
94.53
Excess Non - allowable Annual Cover Deduction
- 0.0
Woody Plants - Not Allowed
- 69.60
Mean Allowable Cover - All Hit
24.93
Standard Deviation of Mean Allowable Cover
4.56
Sample Size
15
Minimum Adequate Sample Size
7
First Hit to All -hit Ratio (see Appendix 6, Table 6 -4)
0.496
Mean Allowable Cover Converted to First -hit Basis
12,37
For the Sagebrush Reference and the Phase II Bond Release Block, sample adequacy was
reached using first -hit data:
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