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PERMFILE103738
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PERMFILE103738
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Entry Properties
Last modified
8/24/2016 9:57:12 PM
Creation date
11/24/2007 10:22:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2006018
IBM Index Class Name
Permit File
Doc Date
5/1/2006
Doc Name
Adequacy Review Comments
From
DMG tas
To
LaFarge West Inc
Media Type
D
Archive
No
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respond. <br />13. In conformance with Rule 6.4.7(1), please verify whether the operation is expected to directly <br />affect surface or groundwater systems (by virtue of de-watering activities, the Division would <br />expect a direct affect on the groundwater system in the immediate azea). Please respond. <br />14. In conformance with Rule 6.4.7(2)(b), please identify and characterize the alluvial aquifer <br />that will be mined through and affected by the proposed mining activities. Included in this <br />assessment should be a description of the depth to groundwater throughout the two (2) cells to be <br />excavated and the seasonal variation in fluctuation of the groundwater surface throughout these <br />areas. <br />15. In conformance with Rule 3.1.6(1), please quantify the horizontal and vertical extent of the <br />drawdown expected in the affected land and surrounding azea based on the anticipated de- <br />watering rate and period of de-watering, ie: please provide an assessment of the impacts to <br />surface and/or groundwater due to de-watering operations. Also, please describe the location of <br />any groundwater wells, springs, irrigation channels, sub-irrigated meadows, wetlands, riparian or <br />woody vegetation, or other water dependent features within the horizontal extent of drawdown <br />expected. <br />16. In conformance with Rule 3.1.6(1), please describe what mitigation measures, if any, will be <br />implemented to minimize the impacts expected to surface and/or groundwater. <br />6.4.8 EXHIBIT H -Wildlife Information <br />17. As previously mentioned, attached aze review comments from the Colorado Division of <br />Wildlife including an assessment of potential impacts to wildlife and recommended mitigation <br />measures. Please address. <br />18. The applicant has mentioned that Tamarisk and Russian Olive trees exist within the proposed <br />permit boundary. Attached is the Division's "Policy Memo on Management of Tamarisk and <br />Russian Olive trees at Permitted Mine Sites" and "Guidelines for Noxious Weed Management <br />Plans". Please revise the proposed weed management plan to include provisions for management <br />of Tamarisk and Russian Olive trees within the proposed permit area. Also, specific weed <br />control strategies will also need to be included for field bindweed as well as Canada thistle, and <br />knapweed species on site. Please respond. <br />6.4.12 EXHIBIT L -Reclamation Costs <br />19. Will need to be revised to include the following itemized costs: <br />• de-watering the pit(s) a1 the time of maximum disturbance <br />• re-vegetate reclaimed mining face, above expected water line <br />
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