GENERAL54717

• Permit No: C1981024
• IBM Index Class Name: General Documents
• Doc Date: 1/14/1985
• Doc Name: REVEGETATION SUCCESS CRITERIA MEMO
• From: MLRD
• To: GREGG SQUIRE
• Permit Index Doc Type: VEGETATION
• Media Type: D
• Archive: No

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~cl DEPARTMENT OF NATURAL RESOURCES
.~ ~~/; /~; Davitl H. Gemhes. Execmwe Director
., /g76, MINED LAND RECLAMATION DI\
~~ DAVID C. SHELTO N, Director
F.icnartl D. Lamm
3overnor
DATE: January 14, }.985
T0: Gregg Squire
FROM: M.S. Savage ~ ~-VAti~~~
RE: R'eveg'eaation' Success Criteria for the Colorado Coal t4ine No. 1
(C-024-81) r~
In response to the discussions we had with Perma Resources and Mr. Bill White
on January 7, 1985, I have reviewed the proposed revegetation success criteria
for previously..distu~rbe~d~a'r'e^as', woody plant density, and species diversity for
the Colorado Coal i4ine No. 1. I nave the following suggestions which should
answer the questions and concerns regarding these criteria.
For~pr-e•viouslry:~d~i•stumk~ed~<a~re~als which have been delineated on Map. No. 3 by
CCMC; the permittee sriould be required to restore a ve etatj~ve cov,erKof 30
in accordance with Ru'l`e `4:15:`'10'. This standard is based 'upon ac'$tia~`-Basel'ine
• data collected from the grassland vegetation type, in poor range condition, ~,5 a~3
and from range site descriptions provided by the SCS. The SCS range site ~ 5 Pt a.
descriptions cite an optimal cover of 35% and the baseline information nvr~ri<~
collected for Perma Resources indicates, even in poor range condition, that
cover is in the vicinity of 26%. Therefore, given the knowledge that many of -5~`~~
these areas have little or not topsoil, a standard of 30% is not unreasonable.
CCMC has proposed a woody plant density of 333 stems per acre for the area
wnich has a post-mining land use of pasture. This standard should be
acceptable to the Division.
With regard to species diversity, I have evaluated the baseline data for the
grassland community (whic{i°,*i~s,in poor range>condition) and the appropriate
range site descriptions from"Che SCS. The,~}'iermittee should commit to, at a
minimum, the achievement of the following diversity standard or equivalent.
The permittee should establish a m•iVnimurn of four species of warm season
grasses, two species of leguminous~o~,bs, and two species of woody plants, no
single species comprising more tf,~an 40ro'{relative cover nor less than 3%
relative cover on the revegetate8 surface. This should establish a
satisfactory diversity for the grassland areas at the Colorado Coal Mine No.
/md
Doc. No. 6763

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4//z/8~
memo
S~&P 7

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