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2010-02-16_PERMIT FILE - M2008012
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2010-02-16_PERMIT FILE - M2008012
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Last modified
8/24/2016 3:59:36 PM
Creation date
2/23/2010 7:19:53 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M2008012
IBM Index Class Name
PERMIT FILE
Doc Date
2/16/2010
Doc Name
Conversion Application for 112d Permit
From
BCI Engineers & Scientists, Inc.
To
Nuvemco
Email Name
GRM
Media Type
D
Archive
No
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EXHIBIT G - WATER INFORMATION <br />(1) No Surface or Groundwater Impacts <br />Nuvemco's mining, exploration, and development plans on the Last Chance Mine Permit area <br />are not expected to impact any of the surface or subsurface waters. <br />Some ground water has accumulated in lower reaches of mines on the Monogram or Davis <br />mesas area which "is probably from the interface of the alluvium and bedrock and the water is <br />entering the mine workings via exploratory boreholes from the surface" (from White 2006, in <br />DOE Uranium Leasing Program Final Programmatic Environmental Assessment, July 2007, p. <br />4-10). The limited quantities were used for drilling activities and dust control. This <br />phenomenon was confirmed by Nuvemco's monitor well number MMW 1 as described below. <br />(2) Effects on Surface and Groundwater Systems <br />(a) Exhibit C, Map C-7. - Topographic Map shows the location of all tributary water courses, <br />wells, springs, stock water ponds, and reservoirs within a two-mile radius of the proposed mining <br />permit and operations. There appear to be no irrigation ditches that would be potentially affected <br />by the proposed project. There is no live water in the permit area. The nearest live water is in <br />the ephemeral East Paradox Creek located over two miles to the northeast which is fed by <br />ephemeral drainages off the uplifted flanks of Paradox Valley. The East Paradox Creek flows in <br />a northwesterly direction to the Dolores River about 4.9 miles northwest of the permit area. <br />(b) The Salt Wash Member of the lower Morrison Formation is the only groundwater unit which <br />could be potentially affected by the proposed mining operations. Some groundwater is found <br />within the upper Morrison Brushy Basin member of the Late Jurassic age-Morrison. The Brushy <br />Basin is not present in the Last Chance Permit area but outcrops south of the boundary about <br />2000 feet from the mine site and at a higher stratigraphic horizon. <br />(c) Two monitoring wells constructed on the Last Chance Permit were dry through the entire <br />Salt Wash Member of the Morrison Formation (see Appendix E - Groundwater Monitoring for <br />details). Well No. MMW 1 initially made some water, but not enough to withdraw several casing <br />volumes, and once removed, the well did not collect any more water. The water collected was <br />sent to Evergreen Analytical for analysis (in Appendix E) and shown to exceed drinking water <br />standards in Iron, Manganese, Molybdenum, Uranium, Vanadium, Sulfate, Radium, and total <br />dissolved solids (TDS). The following table shows parameters that exceed Colorado Water <br />Quality Control Commission (CWQCC) drinking water standards. <br />Table 1 - Parameters that exceed CWQCC drinking water standards <br />Parameter Drinking Water Standard*(mg/L) Result (mg/L) <br />Iron 0.3 19 <br />Manganese 0.05 0.89 <br />Molybdenum 0.035 0.94 <br />Uranium 0.03 0.38 <br />Last Chance Mine - April 2009 <br />G-1
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