2011-11-15_REVISION - M1980055HR

• Permit No: M1980055HR
• IBM Index Class Name: Revision
• Doc Date: 11/15/2011
• Doc Name: Operator acceptance of amendment requirements ‎(AM-01)‎
• From: Denison Mines
• To: DRMS
• Type & Sequence: AM1
• Email Name: RCO
• Media Type: D
• Archive: No

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Section 7
Groundwater Information
within the Big Gypsum Creek watershed and groundwater south of the divide
staying within the Disappointment Creek watershed.
The Salt Wash aquifer and the Dakota Aquifer crop out adjacent to the Dolores River
in the Disappointment Creek watershed, and the Salt Wash aquifer crops out adjacent
to the river in the Big Gypsum Creek watershed. These are likely areas of
groundwater discharge to the river. Groundwater discharge from the Dakota aquifer
is also reported from several artesian wells in the Disappointment Creek watershed
(Weir et al. 1983).
Groundwater in the vicinity of the mine affected areas is generally unconfined.
Confined conditions are reported for aquifers in Disappointment Valley, and it is
C1Documents ant Settinos1cwoodward .DMC1Desktop\Environmental Protection Plan Sunday Mines Revised November 2011 rev1 (2) 11 10 11.doco
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