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2011-07-20_REPORT - M1988044 (2)
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2011-07-20_REPORT - M1988044 (2)
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Last modified
8/24/2016 4:35:52 PM
Creation date
7/21/2011 12:50:06 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1988044
IBM Index Class Name
REPORT
Doc Date
7/20/2011
Doc Name
Annual Report
From
Mark A. Heifner
To
DRMS
Permit Index Doc Type
Annual Fee/Report
Email Name
JLE
Media Type
D
Archive
No
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RECLAMATION PERMIT STATUS: No changes to the permit were made in the last year and <br />the permit continues in compliance with the plan. <br />404 PERMIT STATUS: The 404 permit exclosures and other areas included in that permit <br />continued with analysis. Significant gains were seen in Exclosures 1 and 2, but the gains in <br />Exclosures 3, 4, and 5 were less due to the vegetation reaching a density limited plateau in its <br />development. Exclosure 4, which shows a bit less density limitation continued to show some gains <br />but appears to be reaching a density limit. <br />Exclosure 1 appears to have reached a fairly stable density. The growth here is very dense and <br />has likely entered a short duration density limitation. Vegetation zonation and community <br />differentiation appears to be well along in its early stages with cottonwoods and willows tending to <br />establish comfortable boundaries so less early tree -shrub competition occurs. Willows have definitely <br />taken over the wetter areas with cottonwood in the drier, slightly more elevated areas. There is still a <br />good deal of mixing in some locations due to microenvironmental variability. This seems to currently <br />be functioning in a fairly non - conflicting arrangement, but as the trees become larger and shade <br />effects on the shrubs become more prominent, conflict will ensue once again several years from now. <br />In that instance, unless the soils become too wet for the cottonwood, which is entirely possible, the <br />willows will locally lose the battle and relinquish the ground to the trees. <br />The land outside the exclosure and north of the road crossing has continued to show rapid <br />development and expansion of shrubs and trees over the last three summers. <br />The channel relocation area continues to show excellent development and without any heavy <br />flows since the changes were made, it has had an opportunity to establish a great deal of stability. It, <br />as well as the south lowland, could still be negatively affected by a heavy flow, but the impact will be <br />much less significant now that the growth has developed at least a moderately robust density. <br />Exclosure 2 seems to be the one that is showing the slowest development. Its water supply is <br />somewhat limited. But even here, gains are significant with both willow and cottonwood making <br />excellent progress. <br />The general stream channel in this area has continued to develop a strong growth of <br />cottonwood and willow. This is a major shift in composition from what it was before grazing was <br />removed. At that time the area was dominated by browsed, beaten and damaged willows and grossly <br />distorted cottonwoods that had been affected by browsing during the winter months. Now, the <br />cottonwoods are growing rapidly and in some places dominate the willows, but in other places the <br />willows have established an almost impenetrable wall of vegetation in the stream bed. <br />MINING ACTIVITY IN THE LAST YEAR: <br />1. Depth of mining - In the last year, mining depths were extremely variable due to the spotty <br />and highly variable configuration of the remaining sand. In many instances, mining depth was <br />quite deep, but also very large amounts of overburden and waste (wash fines) were generated. <br />The waste is mostly located near the plant and comes from pond cleanings. Soils were <br />exceptionally deep in some places which generated large volumes of soil for backfilling. All <br />mining was in compliance with the depth requirements. <br />Status report for 2009 <br />due July 15, 2010 Page 5 of 13 <br />
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