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2021-12-07_REVISION - M2012032 (24)
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2021-12-07_REVISION - M2012032 (24)
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Last modified
12/7/2021 11:13:38 AM
Creation date
12/7/2021 10:59:04 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M2012032
IBM Index Class Name
Revision
Doc Date
12/7/2021
Doc Name Note
Exhibit U: Designated Mining Operation Environmental Protection Plan
Doc Name
Proposed Revision Materials
From
Ouray Silver Mines, Inc
To
DRMS
Type & Sequence
AM2
Email Name
LJW
THM
Media Type
D
Archive
No
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engineering controls include process automation of pumps and valves to prevent tanks from <br /> overtopping. <br /> Administrative controls include various emergency response plans including the site-wide SPCC <br /> Plan, the MCP and Emergency Response Plan, copies of which are provided in Appendix 1. <br /> These plans have a section devoted to the handling of designated and non-designated chemicals. <br /> Personnel are trained in the proper handling, storage and use of the chemicals, as well as the <br /> procedures for handling spills. Inspections are performed of the entire process area as described <br /> in the MCP/SPCC Plan. <br /> 5.3.2 TSF and Waste Rock Storage Areas <br /> As noted above, tailings and waste rock are expected to be near neutral and not acid generating. <br /> Therefore, the potential for these facilities to produce acid main drainage or toxic or acid forming <br /> materials is low. The Tailings and Waste Rock Management Plan details the design and <br /> construction of these facilities to prevent off-site impacts. In addition, each of the TSFs have <br /> sediment ponds to capture stormwater runoff during operations. Detailed plans for reclaiming the <br /> TSFs and waste rock areas are presented in Exhibit E. <br /> 5.3.3 Mine Water Treatment <br /> The five-stage mine water treatment system provides treatment to remove certain metals from <br /> the mine water exiting the Revenue portal. The water leaving the portal is near neutral pH and <br /> therefore is not acid generating nor is it acid mine drainage. However, there is a potential for <br /> future underground workings to intercept veins or fault structures that have the potential to <br /> convey lower pH water. The passive mine water treatment system was designed to be low <br /> maintenance with the ability to treat mine water post mining until the mine water achieves water <br /> quality standards. The water treatment system also serves to capture stormwater runoff prior to it <br /> leaving the site. <br /> M-2012-032 <br /> Amendment 02 Exhibit U <br /> December 2021 U-14 <br />
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