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2010-06-01_REVISION - C1981019 (5)
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2010-06-01_REVISION - C1981019 (5)
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Last modified
8/24/2016 4:12:37 PM
Creation date
8/18/2010 1:12:58 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
REVISION
Doc Date
6/1/2010
Doc Name
Exhibit 5 2006, 2007, 2008 & 2009 Phase II Vegetation Reports
From
Colowyo Coal Company
To
DRMS
Type & Sequence
SL4
Email Name
JRS
SB1
Media Type
D
Archive
No
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transect, the orientation of the transect was turned 90 in the appropriate direction so the transect could <br />be completed. In this manner, boundary transects were retained entirely within the target unit by <br />"bouncing" off the boundaries. <br />2.2 Determination of Ground Cover <br />Ground cover at each sample point was determined utilizing the point- intercept methodology as <br />illustrated on Figure 1. As indicated on this figure, Cedar Creek utilizesstate -of- the -art instrumentation it <br />has pioneered to facilitate much more rapid and accurate collection of data. A transect of 10 meters <br />length was extended in the direction of the next sampling location from the flagged center of each <br />systematically located sample point. At each one -meter interval along the transect, a "laser point bar" <br />was situated parallel to, and approximately 4.5 to 5.0 feet vertically above the ground surface. A set of <br />10 readings was recorded as to hits on vegetation (by species), litter, standing dead, rock (>2mm), or <br />bare soil. Hits were determined at each meter interval by activating a battery of 10 low- energy <br />specialized lasers" situated along the bar at 10 centimeter intervals and recording the variable <br />intercepted by each of the narrowly focused (0.02'1 beams (see Figure 1). In this manner, a total of 100 <br />intercepts per transect were recorded resulting in 1 percent cover per intercept. This methodology and <br />instrumentation facilitates the collection of the most unbiased, repeatable, and precise ground cover data <br />possible. Identification and nomenclature of plant species follows Weber and Wittman (1996) Colorado <br />Flora: Western Slope. <br />— Lasers utilized for this instrument are state -of- the -art and of specialized design to emit a unique electro- magnetic <br />wavelength visible under full sunlight, a condition previously not possible with portable low- energy lasers. <br />Colowyo Mine 8 Phase II Bond Release - 2007 <br />
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