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REP37482
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Entry Properties
Last modified
8/25/2016 12:16:26 AM
Creation date
11/27/2007 7:46:55 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982055
IBM Index Class Name
Report
Doc Date
1/21/2005
Doc Name
2004 Vegetation Monitoring Report Review Memo
From
Janet Binns
To
Kent Gorham
Permit Index Doc Type
Reveg Monitoring Report
Media Type
D
Archive
No
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Species diversity standards aze found on permit page 522. The approved diversity standard for the Raton <br />Creek Mine are: <br />At least 60% of the total vegetative cover will be grass with no one grass species comprising more than <br />50% of the grass cover. <br />• At least 5% of the total vegetative cover will be attributed to shrubs <br />• At least 10% of the total vegetative cover will be comprised of forb species. <br />Although the Energy Fuels Coal, Inc. has established a permanent, relatively diverse, grass dominated <br />community, the data fall short of achieving the approved standard. The 2004 cover data recorded 14 perennial <br />grass species, 3 perennial forb species, 1 sub-shrub species, 2 shrub species, and 12 annual or biennial species. <br />One noxious weed species, field bindweed, was encountered with in 19 of the 30 transects during the sampling <br />event. <br />Perennial grasses achieved 52.6% relative cover. This value is just short of the approved 60% required in the <br />permit. Of the perennial grass cover, no single grass species should comprise greater than 50%. Western <br />wheatgrass made up 52% of the perennial grass species. The diversity requirement for grasses was not met in <br />the 2004 sampling event. <br />Two species of shrub species were encountered in the cover data; Rubber rabbitbush (Chrysothamnus <br />nauseosus) and Fourwing saltbush (Atriplex canescens). Broom snakeweed is considered asub-shrub and is <br />not counted in the shrub success standard. Relative cover of the two shrub species comprised 3.07% relative <br />cover. This value is short of the 5% standard stated in the permit. The diversity requirement for shrubs was <br />not met in the 2004 sampling event. <br />Three perennial forb species contribute 21.1 % relative cover. Cover from sub-shrubs can be counted in the <br />forb category, raising the forb relative cover to 21.2%. This 21.2% relative cover value is more than double <br />the value of 10% required by the approved reclamation success standard. Annual and biennial fortis also <br />contribute 12.66% (13.30 - 0.54 from bromus tectorum) relative cover. The diversity standard for the forb <br />component has been achieved for the 2004 sampling event. <br />Woody~lant density success standard for the mine is 500 stems per acre. IME collected 250 belt transects <br />(100 M) fot woody plant density. Data was collected to adequacy in accordance with the adequacy formula <br />outlined in the Division's Guideline Regazding Selected Coal Mine Bond Release Issues, dated April 18, 1995. <br />Three shrub species and three tree species were encountered in the shrub belt transects; Rubber rabbitbrush, <br />Yellow rabbitbrush, Fourwing saltbush, Boxelder, Rocky mountain juniper, and Gambel oak. IME included <br />Winterfat (Krascheninnikovia Janata) in the woody stem counts. Winterfat is considered asub-shrub. Please <br />refer to enclosed USDA-NRCS Plants datasheets. The Division does not include sub-shrubs in the woody <br />stem density calculations. Subtraction of the Winterfat data from the woody stem data results in 5.464 woody <br />stems per 100 MZ belt transect. This value calculates to 221 woody stems per acre. The reclaimed area does <br />not achieve the woody plant success criteria for the 2004 sampling event. <br />The 2004 data shows that the reclaimed vegetative community at the Raton Creek Mine is successful for cover <br />and productivity. The data do not show reclaimed vegetation success for diversity as approved in the PAP. <br />The data show that the reclaimed vegetative community is approaching the diversity success criteria. The 2004 <br />
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