2011-03-28_REPORT - C1981041

• Permit No: C1981041
• IBM Index Class Name: REPORT
• Doc Date: 3/28/2011
• Doc Name: 2010 ARR Revised Pages for Revegation Evaluation 2010 Report
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Permit Index Doc Type: Annual Reclamation Report
• Email Name: MPB
• Email Name: SB1
• Media Type: D
• Archive: No

Table 11 Snowcap - Vegetation Cover - 2010
North Decline Dewatering System
Raw Data Percent Ground Cover Based on Point-Intercept Sampling
Transect No. --> 1 2 3 4 5 6 7 8 9 10 Average Relative
Grasses and Grass-likes Cover Cover

N P Achnatherum hymenoides Indian Ricegrass
I A Anisantha tectorum Cheatgrass
N P Elymuslanceolatus var. 1. Thickspike Wheatgrass

20
1
14 3
20
2
22
15 1
2
10

1
12
13
5 0.40
7.50
6.20 0.89
16.67
13.78
-
N P Elymustrachycau/us Slender Wheatgrass
I A Eremopyrum hWceum Annual Wheatgrass
I P Pba bulbosa Bulbous bluegrass
11
18
4 4
9 10
1 7 1.40
0.80
4.20 3.11
1.78
9.33
I P Psathyrostaabysjunceus Russian Wildrye
N P Pseudo neria icata ss . s. Bluebunch Wheat rass 7 16 4
2 2.70
0.20 6.00
0.44
Forbs
N P Iva iW11aril Poverty Weed
I P Kochia pro_,Vata Forage Kochia
N P Penstemon imeri Palmer Penstemon
3

7
2 19
2
8 1.90
1.50
0.70 4.22
3.33
1.56
Sub-shrubs
N P GL&emezia sarorae Sna ewee 2 4 0.60 1.33
Shrubs, Cacti & Trees
N P Atriplercanescr:ns Four-wing Saltbush
N P Sarrobatus vermiculatus Greasewood
16
24
2 9
4
20 11
2
34 13
13 5
16 3.80
13.10 8.44
29.11
Mean
Total Plant Cover 33 53 56 52 20 51 37 52 60 36 45.00
Rock
Litter
Bare ground 4
21
42 1
36
10 1
24
19 4
33
11 24
15
41 11
28
10 20
15
28 6
32
10 8
19
13 11
22
31 9.00
24.50
21.50
Perennial Plant Cover= 36.70 (82% of Total Plant Cover) Sampling Adequacy Calculations
Annual & Biennial Plant Cover = 8.30 (18% of Total Plant Cover)
Noxious Weed Cover = 0.00 0% of Total Plant Cover Mean = 45.00 Variance = 145.80
n = 30 t = 1.383 10/90 nm,„ = 13.772
Table 12 Snowcap - Vegetation Cover - 2010
Roadside North Portal Facilities - Greasewood
Raw Data Percent Ground Cover Based on Point-Intercept Sampling
TransectNo. --> 1 2 3 4 5 6 7 8 9 10 Average Relative
Grasses and Grass-likes Cover Cover
I A Anisanb5a tectorum Cheatgrass
N A Criterion pusillum Little Barley
I A Eremopyrum tit eum Annual Wheatgrass 24

8 32
1
2 18
1 6
6
20 31

26 2

21 25 1

17 2 1

1 14.20
0.80
9.50 27.63
1.56
18.48
N P Hesperos8pa somata Needle and Thread
N Pw Hilan;? anw&Y Galleta
1 1
4 0.10
0.50 0.19
0.97
Forbs
I P Kochia proslrata Forage Kochia
N A Le idium rfoliatum Clasping Pe erweed 5
1 1 2 2 4 8 3 8 4 3.70
0.10 7.20
0.19
Sub-shrubs
None 0.00 0.00
Shrubs, Cacti & Trees
N P AtriplercanescY:ns Four-wing Saltbush
N P Abiplex conferfifo&7 Shadscale
N P Sarrobatus vermiculatus Greasewood
1
9
4
8 21
6 17
5
1
1
7 20

16 5
7
11 13
1
31 9
2
5

25 8.50
2.70
11.30 16.54
5.25
21.98
Mean
Total Plant Cover 48 48 48 57 65 63 56 67 31 31 51.40
Rock
Litter
Bare ground 1
36
15 3
25
24 2
25
25 1
37
5 3
26
6 4
30
3 1
28
15 1
20
12 26
13
30 22
12
35 6.40
25.20
17.00
Perennial Plant Cover= 26.80 (52% of Total Plant Cover) Sampling Adequacy Calculations
Annual & Biennial Plant Cover = 24.60 (48% of Total Plant Cover)
Noxious Weed Cover = 0.00 0% of Total Plant Cover I Mean = 51.40 Variance = 148.24
n= 10 t = 1.383 10/90 nmi„ = 10.733
CEDAR CREEK ASSOCIATES, Inc. Page A - 18 Snowcap - Revegetation Evaluation - 2010
Appendix A