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GENERAL36457
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Last modified
8/24/2016 7:57:00 PM
Creation date
11/23/2007 8:45:04 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981053
IBM Index Class Name
General Documents
Doc Date
11/24/2003
Doc Name
Revegetation Sampling Reports Memo
From
Sandy Brown
To
Harry Ranney
Permit Index Doc Type
Vegetation
Media Type
D
Archive
No
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Erosion <br />At the Blue Flame Mine Site there is no evidence of significant surface runoff, leading to <br />erosion. No evidence of rills and gullies was present within or below the <br />reclaimed/revegetated area. These field observations conclude that the vegetative ground <br />cover is sufficient to control erosion. <br />IV. Conclusion <br />The reclaimed area was quantitatively sampled to evaluate revegetation establishment for <br />the final release of liability. Statistical evaluations for cover, production and woody plant <br />density were calculated as necessary to evaluate the reclaimed area's equivalency to the <br />applicable standard. <br />The reclaimed azea meets the revegetation success standard for cover and production. <br />Although, stem densities aze less than required, a healthy, native, reproducing population <br />of shrubs is apparent. With no pre-mine vegetation data to use as a basis for establishing <br />a standard, CDMG relied on initial baseline vegetation data collected by the mine during <br />the permitting process, Sections 2.04.10 and 2.05.4 of the permit application, and the <br />requirements of Rule 4.15.10. The revegetation success standard for previously disturbed <br />mine sites relies on the adequacy of ground cover to control erosion and provide cover <br />equivalent to that prior to redisturbance. The cover standard was set at 30 percent, and <br />the measured reclaimed cover was 35.3 percent, guazan[eeing the fulfillment of the Rule <br />4.15.10 requirements. <br />The Blue Flame Mine reclaimed azea has a mixture of native perennial graminoid, forb <br />and shrub species -displaying successful establishment of aself-regenerating, permanent <br />vegetation community in the middle stages of succession. <br />Species composition data illustrate a trend in vegetation community development toward <br />the stable, self-perpetuating vegetation community desired on a given post-mining <br />landscape. The high production values for the reclaimed area demonstrate the aeea's <br />ability to provide the necessary resources for plant success and to meet the post mining <br />land uses of rangeland and wildlife habitat. <br />Based on the quantitative sampling performed at Blue Flame Mine in July of 2003, it is <br />evident that a diverse, successful, and permanent vegetation cover of the same seasonal <br />variety native to the area has been established. This reclaimed area is capable of self- <br />regeneration and plant succession in accordance with the requirements of the Colorado <br />Surface Coal Mining Reclamation Act. <br />
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