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REP36426
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REP36426
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Entry Properties
Last modified
8/25/2016 12:14:13 AM
Creation date
11/27/2007 7:27:56 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982055
IBM Index Class Name
Report
Doc Date
4/29/1999
Doc Name
INTEROFFICE MEMORANDUM RATON CREEK MINE C-82-055
From
JANET BINNS
To
KENT GORHAM
Permit Index Doc Type
ANNUAL RECLAMATION REPORT
Media Type
D
Archive
No
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<br />Sampling of the plant growth media on the non-topsoiled area was conducted in 1998 <br />with the samples sent to a lab for analysis. The 1998 Annual Reclamation Report Map <br />did not show where the samples were collected. No one chemical parameter measured as <br />toxic to vegetation. The analytical laboratory did provide fertilizer recommendations and <br />rates. Fertility levels could be improved via fertilizer additions. The percent gravel in <br />the plant growth media (spoil) material was relatively high from 22-44% of the sample. <br />The Division sees three alternatives at this point into the liability period. <br />Although the reclaimed vegetative communities on both the topsoiled and non- <br />topsoiled areas aze establishing to the point that the reclamation cover success <br />standard is being achieved, the data does not indicate that the diversity standard on <br />the non-topsoiled area is being approached. The non-topsoiled area is dominated by <br />one forb species. <br />The Division suggests interseeding of approved perennial grasses and fertilizer <br />additions as per CSU's Soil, Water and Plant Testing Laboratory's recommendation. <br />Strip seeding of grasses into the non-topsoiled area would allow for retention of a <br />considerable portion of the Cicer milkvetch. <br />2. Another alternative would be to follow the original permit commitment and import <br />topsoil, distribute topsoil on the 17.3 non-topsoiled acres, re-seed with the approved <br />seed mix, and apply mulch as described in the permit. <br />3. A third option Energy Fuels may choose to pursue would be to chance natural <br />vegetation succession and establishment. This option has the potential of extending <br />the liability period for meeting the approved reclamation success standards. <br />4. If Energy Fuels has a different option they propose for establishing the approved <br />diversity and woody plant species on the non-topsoiled areas, please present any <br />proposals to the Division for our review. <br />As a part of this review, the Division requests Energy Fuels submit a map delineating <br />where the topsoiled area and the non-topsoiled area aze. Please direct Energy Fuels to <br />note on the map the date that all vegetation was seeded. The submitted map only defines <br />the 1996 seeding. Please direct Energy Fuels to designate on the map where the <br />vegetation sampling transect were located, and where the spoil samples were located. <br />Energy Fuels needs to submit timing of weed control application and state what chemical <br />was used. Please have Energy Fuels submit the standard deviation calculations for the <br />submitted vegetation data. <br />Let's get together and discuss the four options suggested above. <br /> <br />
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