2011-01-19_REVISION - C1981019 ‎(7)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 1/19/2011
• Doc Name: Updated 2011 2009 Phase III Bond Release Evaluation - Year 2
• From: Colowyo Coal Company
• To: DRMS
• Type & Sequence: SL5
• Email Name: JRS
• Email Name: SB1
• Media Type: D
• Archive: No

Table of Contents
1.0 Introduction ........................................................................................................................... 1
2.0 Methodology for Vegetation Sampling / Comparison Methods ........................................... 4
2.1 Sample Site Selection / Location ........................................................................................... 4
2.2 Determination of Ground Cover ............................................................................................ 5
2.3 Determination of Woody Plant Density .................................................................................. 5
2.4 Determination of Current Annual Production .......................................................................... 7
2.5 Sample Adequacy Determination .......................................................................................... 8
3.0 Results ..................................................................................................................................... 9
3.1 Phase III Summary ............................................................................................................... 9
3.1.1 2008 .......................................................................................................................... 9
3.1.2 2009 .......................................................................................................................... 9
3.2 Reference Areas ................................................................................................................ 10
3.2.1 Mountain Shrub Reference Area ................................................................................. 10
3.2.2 Sagebrush Reference Area ......................................................................................... 11
4.0 Success Evaluation ............................................................................................................... 24
4.1 Ground Cover and Production ............................................................................................. 24
4.2 Diversity ...........................................................................................................................25
4.3 Woody Plant Density .......................................................................................................... 25