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2015-01-27_REVISION - M1979191 (14)
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2015-01-27_REVISION - M1979191 (14)
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Last modified
6/15/2021 2:30:20 PM
Creation date
1/28/2015 11:51:02 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M1979191
IBM Index Class Name
REVISION
Doc Date
1/27/2015
Doc Name
Three Bells Mine Adequacy Response AM01
From
GEI Consultants, Inc.
To
DRMS
Type & Sequence
AM1
Email Name
ECS
Media Type
D
Archive
No
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Groundwater disturbances and interaction is anticipated to be minimal. Measures shall be <br />taken to preserve existing groundwater resources as reclamation commences. Points of <br />compliance and groundwater sampling will be implemented on Three Bells Property and <br />hydrologically downstream as appropriate and required by the Board. <br />MODFlow models and analyses have been created and run to demonstrate the anticipated <br />effect of reclamation on existing groundwater resources. Models were created to estimate the <br />effect of lined reservoirs in the reclaimed mine site on groundwater conditions and flow. <br />Results from MODFlow modeling are available in Attachment C. <br />5.5.6 Topsoiling <br />Over-bur-den-Topsoil has been stripped from mined areas and stockpiled close to the Cache la <br />Poudre River for use in reclamation. Stockpile locations are away from daily operations and <br />require minimal disturbance, as per the Rules. Placement of ever-bur-den topsoil will be done <br />is such a manner so as to create a relatively uniform layer ef*^psoit fanging in thickness <br />fr- E) m zwith a minimum depth of 6 ". <br />Stability of any replaced topsoil will be of importance as any areas to be backfilled are <br />planned to be used for housing development. <br />The primary measure for Nnoxious weed control and removal will be mechanical control. <br />Weeds will be mowed before they go to seed during the growing, season. Russian olives and <br />tamarisk will be pulled as they develop. <br />Chemical methods will be used on Larimer County noxious weed species that persist. Weeds <br />will be sprayed by a licensed contractor with 2 -4 D /Banvel Low Volite or another broadleaf <br />herbicide that they recommend. Noxious weeds will be sprayed once or twice a year wiV, <br />eeetir- on an as needed " to prevent the spread . <br />No historic structures are located on Three Bells Mine. <br />A statement regarding the permit amendment with the Three Bells Mine permit number shall <br />be posted at the entrance to the facility. A fence surrounds the affected area to mark the mine <br />and Affected Area boundary, according to Paragraph 3.1.12(2)(b). <br />N4N4N4MM will notify DRMS of any toxic or hazardous spills which occur on Three Bells <br />Property. N4N4N4MM will contain and remediate any spills which do occur, as appropriate, on <br />an individual case basis. <br />GEI Consultants, Inc. 21 June January 20145 <br />Three Bells Mine Reclamation Permit Amendment <br />
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