2008-03-13_REPORT - C1981019 ‎(2)‎

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 3/13/2008
• Doc Name: 2007 AHR 2007 Revegetation Monitoring Report
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2007
• Permit Index Doc Type: Hydrology Report
• Email Name: SB1
• Media Type: D
• Archive: No

Table 5 Colow o - Ve etation Cover - 2007 ~
East Pit Revegetation -Relative Cover Summary
Ariea -> EP036 EP039 EP040 EP041 EP044 EP046
Growino Seasons-> 7 4 1 4 4 4 2
I P Agropyron cristatum Crested Wheatgrass
N P Agropyron dasystachyum Thickspike Wheatgrass
N P Agropyron npanum Streambank Wheatgrass
I P Agropyron sibencum Siberian Wheatgrass
N P Agropyron smifhii Western Wheatgrass
N P Agropyron spicatum Bluebunch Wheatgrass
N P Agropyron spicatum inerme Beardless Bluebunch W.
N P Agropyron bachycau/um Slender Wheatgrass
I P Bromus inermis Smooth Brome
I A Bromusjaponicus Japanese Brome
N P Bromus maiginatus Mountain Brome
I A Bromus tec[orum Cheatgrass
I P Dacty/isg/omerdta Orchardgrass
N P E/ymus cinereus Basin Wildrye
I P E/ymusjunceus Russian Wildrye
N P Festuca ovina/saximontana Hard Fescue
N P Oryzopsis hymenoides Indian Ricegrass
I P Ph/eum pratense Timothy
N P Poa amp/a Big Bluegrass
I P Poa pratensis Kentucky Bluegrass
N P Poa secunda Sandberg Bluegrass
N P Sitanion hvstrix Bottlebrush Souirreltail
V.91 - - - V.1L
1.31 - - - 0.17
15.09 25.49 19.30 15.87 23.70 11.73
3.54 2.18 13.71 15.05 3.03 0.70
11.32 3.73 1.10 0.28 - 1.51
2.85 1.14 1.32 3.49 1.43 0.46
2.00 0.41 7.02 6.70 3.28 -
- - - 2.11 0.08 -
0.38 1.87 15.90 10.46 3.53 4.53
2.46 1.87 0.88 0.73 0.34 0.58
5.93 - 14.91 5.78 11.60 -
0.85 - 0.77 0.83 0.50 10.45
17.63 57.31 18.97 30.73 39.24 36.00
3.08 - - - - -
2.85 1.76 1.54 1.38 0.42 -
2.46 0.83 ~ 1.54 - 0.67 0.35
0.15 - ~ 0.66 - - -
- 0.62 - - - -
0.23 - ~ - - - -
- - i - 0.83 - -
8.55 1.35 ~ 0.44 1.28 6.30 8.83
' 0.99 0.55 0.17 -
0.38 0.21 ! 0.33 0.55 - -
Iv r f1U////CO /o//u/UJO vve5lCn1 idffUW U.B~ - ~ - V.V7 V.ULS V.lL
I P Asb~aga/us cicer Cicer Milkvetch 9.93 0.21 0.11 - - 0.23
I A C7`ienopodium a/bum Lambsquarter - - - - - 0.23
VW P C7rsium arvense Canada Thistle 0.08 - i - - - 2.79
VW B Cirsium vu/gare Bull Thistle - 0.21 - - - 0.23
N A Co/%mia /inearis Slenderleaf Collomia - - ~ - 0.18 0.08 0.81
N A Descurainia pinnata Pinnate Tansymustard - - i - 1.19 0.17 -
N P He/iomeris mu/tiflora Goideneye 0.08 - - - - -
I B Lach/Ca serria/a Prickly Lettuce - 0.10 - 0.09 1.01 -
N P Linum /ewisii Lewis Flax 1.00 0.10 0.11 0.55 0.17 0.23
I P Medicago saliva Alfalfa 2.46 - ~ - 0.09 - -
I P Onob this vidaefo/ia Sainfoin - - - - - 0.58
N P Penstemon pa/men Palmer Penstemon - - i - 0.28 - -
N P Penstemon sbictus Rocky Mtn. Penstemon 0.15 - , - 0.09 - -
I A Po/ygonum avicu/are Prostrate Knotweed - - i - - - 5.81
I A Sa/so/a austra/is Russian Thistle - 0.10 ~ - - - 9.41
I P Sanguisorba minor Small Bumet - - 0.22 0.37 0.17 0.70
I A Sisymbrium a/tissimum Tumble Mustard - - 0.11 0.37 3.11 -
I A Th/aspi arvense Field Pennycress - - - - 0.42 3.25
I B Tiagopogon dubius False Salsify 0.38 - 0.11 0.09 - -
Unidentifiable - 0.10 ~ - - 0.34 -
ihrubs, Cacti & Trees I
N P Arlemisia cans i ver age 0.31 - - - - -
N P Artemisia tndentata vas Mtn. Big Sagebrush 2.39 - ~ - - - -
N P Atrip/ex canescens Four-wing Saltbush 1.31 - - - - 0.35
summary by Lifeform:
Perennial Grasses 57.51 41.87 65.46 60.09 43.61 39.26
Annual Grasses 23.56 57.31 133.88 36.51 50.84 36.00
Perennial Forbs 14.47 0.31 ~ 0.44 1.47 0.42 1.86
Annual & Biennial Forbs 0.38 0.31 ~ 0.22 1.93 5.13 19.51
Noxious /Aggressive Weeds 0.08 0.21 - - - 3.02
Shrubs 4.00 - - - - 0.35
)iversi Number of S Gies with between 3°k - 50°k Relative Cover
Number of Perennial Grasses = 5 2 ~ 4 5 5 4
Number of Perennial Forbs = 1 0 ~ 0 0 0 0
i
Rio Tirrto Energy America/Colovlryo Mine Page 30 itevegetation Monitoring - 2007
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