REP52626

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 4/6/2007
• Doc Name: 2006 AHR & ARR Section 9 Exhibit 9A to Section 11
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

i~
AB-20 Colowvo -Vegetation Production - 2006

l
S
N Penennia/ Perennial Shrubs/ Annual Mnua/ TOTAL
amp
e
o. G/dS.Se6 FO/ds Sub-Shnid~s Glasses FOI'bS a
g/O.Sm
Ibs / ac
1 4.8 1.5 1.8 8.1 144.5
2 7.0 1.8 1,6 10.4 185.6
3 13.2 0.8 14.0 249.8
4 10.0 0.6 10.6 189.1
5 _ 9.8 0.6 0.4 10.8 192.7
6 12.0 1.8 13.8 246.2
7 8.2 1.6 3.4 0.2 13.4 239.1
8 19.4 0.7 20.1 358.7
9 4.8 1.2 0.4 6.4 114.2
10 9.0 0.9 9.9 176.7
11 7.4 1.4 8.8 157.0
12 10.8 3.4 14.2 253.4
13 13.7 1.6 15.3 273.0
14 27.9 1.5 29.4 524.6
15 20.8 20.8 371.1
16 17.4 1.4 18.8 335.5
17 6.8 9,5 16.3 290.8
18 2.1 13.6 15.7 280.1
19 2.8 9.9 12.7 226.6
20 10.6 0.9 0.4 11.9 _212.3
21 18.4 18.4 328.3
22 26.2 26.2 467.5
23 9.1 1.8 0.9 11.8 210.6
24 16.4 2.4 1.3 20.1 358.7
25 17.2 17.2 306.9
26 18.7 __ 18.7 333.7
27 7.8 1.4 2.Z 0.1 11.5 205.2
28 2.6 1.2 10.0 13.8 246.2
29 17.3 1.4 38.7 333.7
30 20.1 20.1 358.7
Avera 12.4 0.6 1.4 0.7 0.1 15.3 272.4

Sampling Adequacy t = 1.311 var. = 27.294
n= 30 Mean = 15.26 nmin = 20.149
AB-19