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GENERAL47969
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Last modified
8/24/2016 8:23:32 PM
Creation date
11/23/2007 3:58:53 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981025
IBM Index Class Name
General Documents
Doc Date
3/24/2003
Doc Name
Proposed Decision & Findings of Compliance for SL5
From
Partial Phase III
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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Production <br />Documentation submitted with the application indicated that herbaceous production on the <br />reclaimed lands was 83 grams per half square meter in 2000, neazly seven times (680%) of that <br />required. Herbaceous production on the reclaimed lands was 61.2 grams per half square meter in <br />2001, neazly eight times (785%) of that required. These results were assessed visua]]y during the <br />August 6, 2002, inspection. A Mountain shrub community with a sparse understory of <br />herbaceous species dominates the reference azea. The production difference between the <br />reclaimed area and the reference area is lazgely due to the undisturbed azea being dominated by a <br />mature mountain shrub community versus the reclaimed azea being dominated by a grassland <br />community. The grass-dominated community favors the post-mining use of rangeland and <br />provides an increase in grazing forage for both livestock and wildlife. <br />Diversity <br />Documentation regarding diversity was presented for Phase III Bond release. In 2000, there were <br />7 perennials, 4 of which were grasses, 2 were forbs, and 1 was a shrub. In 2001, there were 8 <br />perennials, 5 of which were grasses, 2 were forbs, and I was a shrub. Each species contributed <br />greater than 3 percent, yet less than 60% relative cover. Thus actual achieved diversity <br />approached twice the required diversity. Data was collected to statistical adequacy and all <br />vegetation success pazameters were achieved. <br />Period Specified for Revegetation Responsibility <br />Vegetation sampling data was collected in 2000 and 2001. Thus sampling was accomplished <br />after the period of revegetation responsibility (the period ended in 1998). <br />Permanent Structures <br />Permitted permanent features in areas of disturbance considered in this Application were <br />inspected during the on-site inspection and found to be in required states of repair for equivalent <br />Phase III bond release. Permitted permanent features in azeas of disturbance considered for bond <br />release at the mine site include the Refuse Area Sedimentation Pond and Ditch A running to it <br />from Pond P-9. These features were approved for retention as a permanent stock pond and means <br />of supplemental water supply, and Phase I and Phase II Bond Release was previously granted for <br />these two features by SL-04. The slopes of the pond and the ditch are well vegetated and stable, <br />and Phase III bond release criteria aze met. Several additional sedimentation ponds (Ponds P-1, <br />P-2, P-3, P-4, P-5, P-6, P-7, and P-8) were reclaimed in 1994. Portions of Ponds P-3 through P-8 <br />were subsequently incorporated into the ditch system for Pitkin County Road 001. These eight <br />reclaimed ponds met Phase I and Phase II bond release criteria in SL-04, and aze now eligible for <br />Phase III bond release. The electric service facilities features have been granted Phase I bond <br />release. The minor disturbances at pole bases met Phase II bond release criteria, and the <br />disturbances were granted Phase R bond release by SL-04. The very minor disturbances for poles <br />SL-O5, C-SI-025, Mazch 24, 2003 <br />Page 19 of 26 Pages <br />
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