2011-03-24_REPORT - C1981019 ‎(10)‎

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 3/24/2011
• Doc Name: 2010 AHR & ARR Part 3
• From: Seneca Coal Company
• To: DRMS
• Annual Report Year: 2010
• Permit Index Doc Type: Hydrology Report
• Email Name: JHB
• Media Type: D
• Archive: No

Table of Contents
1.0 Introduction ...................................
2.0 Results ............................................
.................................................................... 1
......................................................................... 5
2.1 Overall Summary ................................................................................................................ 5
2.2 East Pit . ........................................................................................................................... 12
2.2.1 EP036 - 10"' Year - Cover, Diversity, Production, & Woody Plant Density ............... 12
2.2.2 EP039 - 7th Year - Cover, Diversity, Production, & Woody Plant Density ................. 14
2.2.3 EP040 - 7th Year - Cover, Diversity, Production, & Woody Plant Density ................. 16
2.2.4 EP041- 7th Year - Cover, Diversity, & Woody Plant Density .................................. 18
2.2.5 EP044 - 7th Year - Cover, Diversity, & Woody Plant Density .................................. 20
2.2.6 EP051- 1St Year - Emergent Density ................................................................... 22
2.3 Section 16 ........................................................................................................................ 24
2.3.1 S16 Year 13 - Cover, Diversity, Production, & Woody Plant Density ........................ 24
2.4 West Pit ........................................................................................................................... 26
2.4.1 WP008 - 10th Year - Cover, Diversity, Production, & Woody Plant Density .............. 26
2.4.2 WP014 -Is' Year -Emergent Density .................................................................. 28
2.5 Reference Areas ............................................................................................................... 30
2.4.1 Mountain Shrub Reference Area .......................................................................... 30
2.4.2 Sagebrush Reference Area .................................................................................. 31
2.6 Special Consideration Monitoring - EP042 - Cover ............................................................... 34
2.7 CSU Shrub Plots ............................................................................................................... 37
2.7.1 Background Information ..................................................................................... 37
2.7.2 Results .............................................................................................................. 40
3.0 Conclusions & Recommendations ....................................................................................... 60
4.0 Literature Cited .................................................................................................................... 63
In-Text Tables, Charts, Figures, and Maps
Map 1- Vegetation Sampling Unit Locations - 2010 ...................................................................... 3
Table P - Precipitation at the Colowyo Mine, 2001 - 2010 ...............................
Chart P - Precipitation by Growing Season at the Colowyo Mine, 2001 - 2010..
Chart 1- Perennial Cover Success Criteria Comparison by Unit - 2010 ..........
................. 4
................. 4
................. 7
Table 1- Vegetation Production - Summary of Areas Sampled - 2010 ............................................ 8
Chart 2 - Summary of Current Annual Production by Unit and Lifeform - 2010 ............................... 8
Table 2 - Vegetation Cover - Diversity Summary - 2010 ............................................................... 9
Chart 3 - Number of Species with between 3% & 50% Relative Cover (by Area) - 2010 ................. 9
Chart 4 - Relative Forb Cover (excluding Noxious Weeds) - 2010 ................................................. 9
Table 3 - Woody Plant Density - Summary of All Areas Sampled - 2010 ....................................... 10
Chart 5 - Woody Plant Density by Species and Area - 2010 ........................................................ 10
Map EP036 - Vegetation Sampling Point Locations - EP036 - 2010 .............................................. 12
Compendium 1- Pertinent Data Compendium - EP036 - 2010 ..................................................... 13
Map EP039 - Vegetation Sampling Point Locations - EP039 - 2010 .............................................. 14
Compendium 2 - Pertinent Data Compendium - EP039 - 2010 ..................................................... 15