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REP38129
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REP38129
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Entry Properties
Last modified
8/25/2016 12:17:47 AM
Creation date
11/27/2007 7:59:32 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Report
Doc Name
ESTABLISHMENT OF HISTORIC RECORD TECHNIAL STANDARDS FOR REVEGETATED AREAS MOUNTAIN COAL CO WEST ELK
Permit Index Doc Type
REVEG MONITORING REPORT
Media Type
D
Archive
No
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ESTABLISI~i iENT OF HISTORIC RECORD TECHMCAL STANDARDS <br />FOR REVEGETATED AREAS <br />MOUNTAIN COAL COMPANY <br />WFST ELK MINE <br />The relocation of the West Elk Mine facilities ro Sylvester Gulch with the attendant <br />disturbance of the Dry Meadow Reference Area illustrates one of the problems with <br />maintaining and managing reference areas over the life of a mining operation. Mining <br />operations, being dynamic and responding to changing conditions, often modify the <br />mining and reclamation plans during the course of their [ife of operations. As <br />vegetation communities are dynamic assemblages of vegetation which tt;spond ro <br />outside influences (predation, fire, micro-climatic change, managerttent), tfieir basic <br />characteristics may change significantly over the ]ife of a mine. Further, since the <br />majority of revegetatioa is trot directed toward the specific re~stablishement of <br />disturbed vegetation communities, the usefulness of retaining reference areas as <br />determinants of revegetation success is rightfully questioned. <br />There ate two options available for establishing revegetation success criteria which do <br />not rely on reference arras: technical standards and historic records. Techtrical <br />standards rely oa published information for a specific vegetation community, which <br />provide quantitative values for revegetation success parameter (specifically vegetation <br />Dover. herbaceous production, woody pLmt density, or species diversity). In order ro <br />6e used by a mine for revegetation standards, the published litrratttre must be <br />dearonsuated ro be specifically applicable to the vegetation community ro be disturbed. <br />is the vicinity of the mine. Secondly, the teehaica! standard must be approved by the <br />Colorado Division of MineraLS and Geology (CDMG) cad the federal Office of Surface <br />Mmiag Reclamation and Enforcement. Historic records rely oo the quantitative <br />sampling of an area ro be disturbed or equivalent aces for several growing seasons. <br />The revegetadon success standard is then derived from the mean of the parameter <br />sampled over several growing seasons. The advantage of a historic record revegetation <br />success «iterion is that it is site specific cad reflects the growth conditions which can <br />be e:pocood at the rechtmation site. Further. economic and time savings are realized at <br />bond release, as there is no need ro sample one or more reference areas ro establish the <br />revegeration success criteria values. Nor is there the need ro maintain reference arras <br />during the course of the life of the mine. <br />ESTABLISHMF.N1' OF THE HISTORIC RECORD STANDARDS <br />A;easy Coormmttoa <br />Mountain Coal Company (MCC) contacted CDMG to explore options for establishing <br />revegetation strccess criteria through the use of historic records. The suggestion was <br />
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