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2020-12-28_GENERAL DOCUMENTS - M1977300 (22)
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2020-12-28_GENERAL DOCUMENTS - M1977300 (22)
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Last modified
1/9/2025 6:28:15 AM
Creation date
12/29/2020 5:26:52 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1977300
IBM Index Class Name
General Documents
Doc Date
12/28/2020
Doc Name Note
Part 1 of 3
Doc Name
North Waste Rock Pile Diversion
From
Colorado Legacy Land
To
DRMS
Email Name
AME
Media Type
D
Archive
No
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PERMIT#: M-1977-300 <br /> INSPECTOR'S INITIALS: AME <br /> INSPECTION DATE: October 8,2020 <br /> disposal location has been approved. In AM-5,the operator proposes disposing of contaminated alluvial soils <br /> the Black Forest Mine. The Division is currently reviewing AM-5, and expects to issue a preliminary adequacy <br /> review letter within the next week. The current decision date for AM-5 is set for December 9, 2020. <br /> The Division did not visit the top of the mesa during the inspection, where the water treatment plant and <br /> wetland and biochemical reactor(BCR)pilot-scale study operate. The operator informed the Division water was <br /> cut off for the wetland study and it is currently undergoing evaporation trials. The small greenhouse has been <br /> re-constructed around the BCRs to protect them during winter. The operator has plans to increase the scale of <br /> the wetland/BCR study over next spring/summer, and will submit these plans to the Division through an <br /> upcoming Technical Revision. The operator has installed a new pump at Sump#1 to route any water collected <br /> in this sump to the water treatment plant for water quality sampling and treatment. All other sumps have been <br /> taken offline and will be removed during the alluvial excavation project. While Sump#1 is typically dry, any <br /> water collected in this sump will be sampled and the results submitted with the quarterly water monitoring <br /> reports. <br /> This concludes the report. <br /> Any questions or comments regarding this inspection report should be forwarded to Amy Eschberger at the <br /> Colorado Division of Reclamation, Mining and Safety, 1313 Sherman Street, Room 215, Denver, CO 80203, via <br /> telephone at 303-866-3567, ext. 8129, or via email at amy.eschberger@state.co.us. <br /> Page 4 of 19 <br />
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