2016-02-29_REPORT - C1981028 ‎(12)‎

• Permit No: C1981028
• IBM Index Class Name: Report
• Doc Date: 2/29/2016
• Doc Name: Annual Hydrology & Reclamation Report
• From: Coors Energy
• To: DRMS
• Annual Report Year: 2015
• Permit Index Doc Type: Annual Reclamation Report
• Email Name: TNL
• Email Name: DIH
• Media Type: D
• Archive: No

Keenesburg Mine 2015 Vegetation Monitoring Report
Reclamation Area 29 with a resulting composition of approximately 43% perennial grasses and
over 25% cheatgrass.
Table 15: Reclamation Area 30 Relative Cover Trends 2009 - 2015
Life Form
2009
2010
Relative Cover (%)
2011 2012
2014
2015
Warm Season Perennial Grasses
7.8
17.9
39.6
65.9
28.9
42.2
Cool Season Perennial Grasses
72.8
34.2
20.7
24.0
1.0
0.6
Perennial Native Forbs
0.3
1.2
2.1
2.2
Annual Native Forbs
2.3
0.9
7.5
6.9
12.2
Annual Native Grass
1.2
0.3
1.8
2.4
8.3
Annual Introduced Forbs
6.4
6.4
19.2
24.1
8.3
Cheatgrass
9.3
40.3
11.7
8.4
34.7
26.1
Figure 7: Reclamation Area 30 Absolute Cover 2009 - 2015
60.0
50.0 ■ .
40.0
G
30.0 .
20.0
10.0
0.0
2009 2010 2011 2012 2014 2015
■ Perennial Native Warm Grass ■ Perennial Native Cool Grass
%Perennial Native Forbs Annual Native Forbs
rAnnual Native Grass Annual Introduced Forbs
■ Cheaturass
7.2 Herbaceous Production
Based on the results of the herbaceous production sampling, all four Reclamation Areas fell short
of the production success standard calculated value (Table 16). Even if cheatgrass cover had not
been removed, these areas would not have met the standard.
Herbaceous production decreased in all four Reclamation Areas since previous monitoring and
these decreases were most pronounced in the perennial grass species. In 2012, perennial grasses
comprised 95-100% of the herbaceous production in each of these areas (Figure 8). By 2015, not
only has the overall production decreased, but perennial grasses contribute less than 50% in
Habitat Management, Inc. 20 October 2015