2010-06-28_REVISION - C1981019 ‎(6)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 6/28/2010
• Doc Name: Exhibit 2 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 .......... ............................... 10
2.1 Sample Site Selection / Location .......................................................... ............................... 10
2.2 Determination of Ground Cover ........................................................... ............................... it
2.3 Determination of Woody Plant Density ................................................. ............................... 11
2.4 Determination of Current Annual Production ......................................... ............................... 13
2.5 Sample Adequacy Determination ......................................................... ............................... 14
3.0 Results ................................................................................................... ............................... 15
3 .1 Phase III Summary .......... :................................................................................................. 15
3 .1.1 2008 ......................................................................................... ............................... 15
3 .1.2 2009 ......................................................................................... ............................... 15
3.2 Reference Areas ................................................................................. ............................... 16
3.2.1 Mountain Shrub Reference Area .................................................. ............................... 16
3.2.2 Sagebrush Reference Area .......................................................... ............................... 17
4.0 Success Evaluation ................................................................................ ............................... 31
4.1 Ground Cover and Production .............................................................. ............................... 31
4 .2 Diversity ............................................................................................ ............................... 32
4.3 Woody Plant Density ........................................................................... ............................... 32