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 17 Snowcap - Vegetation Cover - 2010
Roadside North Portal Facilities - Shadscale
Raw Data Percent Ground Cover Based on Point-intercept Sam pin
Transect No. -> 1 2 3 4 5 6 7 8 9 10 Average Relative
Grasses and Grass-likes Cover Cover

I A Anisantha tectoivm Cheatgrass
N A L7itesionpusil/um Little Barley
N P E us/anceolahrs var. /. Thicks ike Wheat rass 1 18 15
it 19

4 2
2 1 8 17 24 10.50
1.30
0.40 23.81
2.95
0.91
I A Eremo m (ribceum Annual Wheat rass 9 20 9 40 25 10.30 23.36
Forbs
I A Bassia sieversiana Summer Cypress
N A Descura/nra pinata Pinnate Tansymustard
I A Erodium acutanum Filaree

2 1
1 12

1 1.30
0.10
0.30 2.95
0.23
0.68
I A Ha/ogeton g/omeratus Halogeton
I P Kochia mstrata Fora op Kochia
37 4
10
2
14 1
8
25
12 0.50
10.80 1.13
24.49
Sub-shrubs
N P Gut/ermdasarothrae Snakeweed
N P Krascheninnikovia /anata Winterfat
4 1 0.10
0.40 0.23
0.91
Shrubs, Cacti & Trees
N P Ahip/excanescens Four-wing Saltbush
N P Af#p/exconfertrfolra Shadscale
N P OS thamnusnauseosus Rubber Rabbitbrush
l 3 12
10
3
7
1
1
5 1.50
2.60
0.10 3.40
5.90
0.23
N P Sarcobatus verm/ca/atus Greasewood I 1 11 6 2 4 10 6 3.90 8.84
Mean
Total Plant Cover 40 48 71 40 22 47 26 46 53 48 44.10
Rock
Litter
Bare ground 5
14
41 14
16
22 5
9
15 8
26
26 6
8
64 6
35
12 15
10
49 8
24
22 2
19
26 5
23
24 7.40
18.40
30.10
Perennial Plant Cover= 19.80 (45% of Total Plant Cover) Sampling Adequacy Calculations
Annual & Biennial Plant Cover = 24.30 (55% of Total Plant Cover)
Noxious Weed Cover = 0.00 0% of Total Plant Cover I Mean = 44.10 Variance = 169.49
n= 10 t = 1.383 10/90 nmi„ = 16.670
Table 18 Snowcap - Vegetation Cover - 2010
Roadside Refuse Borrow Area
Raw Data Percent Ground Cover Based on Point-Interce Sampling
TransectNo. -> 1 2 3 4 5 6 7 8 9 10 Average Relative
Grasses and Grass-likes Cover Cover
I A Anrsantha tectorum Cheatgrass 17 5 6 10 18 17 16 7 7 25 12.80 45.88
N A Crilesibn pusi//um Little Barley
on 1 0.10 0.36
N P M
Thicks ike Wheat rass 2 3 0.50 1.79
I A Eremopyrum fiticeum Annual Wheatgrass 5 1 0.60 2.15
N Pw Hilariajames// Galleta 3 0.30 1.08
N P Pasco rum smith// Western Wheat grass 1 0.10 0.36
Forbs
I A Alyssum desertorum Desert Madwort 1 0.10 0.36
Nw P Convolvu/us arvensis Bindweed 3 0.30 1.08
I A Erod/um acutarium Filaree 4 3 2 0.90 3.23
N P Iva axi/lans Poverty Weed 4 0.40 1.43
I P Kochia prostrata Forage Kochia 1 8 1 19 1 3.00 10.75
N A Le idium rfo/iatum Clasping Pe erweed 3 0.30 1.08
N P haeralcea cocanea Scarlet Globemallow 1 0.10 0.36
Sub-shrubs
N P Gutierrez/a sarothrae Snakeweed 2 8 1.00 3.58
Shrubs, Cacti & Trees
N P Atnp/excanescens Four-wing Saltbush 1 11 1.20 4.30
N P Atriplexconfertifolia Shadscale 10 6 8 4 2.80 10.04
N P a thamnusnauseosus Rubber Rabbit brush 7 15 1 2.90 10.39
N P Sarrobatus vermrculatus Greasewood 5 0.50 1.79
Mean
Total Plant Cover 25 14 30 18 39 28 39 27 16 43 27.90
Rock 7 1 2 0 3 2 3 9 8 6 4.10
Litter 10 21 11 16 14 18 10 4 11 16 13.10
Bare ground 58 64 57 66 44 52 48 60 65 35 54.90
Perennial Plant Cover= 12.80 (46% of Total Plant Cover) Sampling Adequacy Calculations
Annual & Biennial Plant Cover = 14.80 (53% of Total Plant Cover) an = 27.90 Variance = 92.09
[n
Noxious Weed Cover = 0.30 1% of Total Plant Cover 10 t = 1.383 10/90 nm,n = 22.629
=
CEDAR CREEK ASSOCIATES, Inc. Page A - 21 Snowcap - Revegetation Evaluation - 2010
Appendix A