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REP15015
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Entry Properties
Last modified
8/24/2016 11:44:41 PM
Creation date
11/27/2007 1:34:12 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981044
IBM Index Class Name
Report
Doc Date
6/3/2005
Doc Name
2004 AHR Response Part 2
Annual Report Year
2004
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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PARTI <br />Page No. 12 <br />Permit No : CO-0034142 <br />.SPECIAL REQUIREMENTS (Continued) <br />- mine drainage or any other process water dischazge points; <br />- springs, streams, wetlands and other surface waters; and <br />- boundary of area that contributes runoff to ouffalls that are subject to effluent limitations guidelines. <br />For those areas outside of the area that contributes runoff to outfalls that aze subject to effluent limitations <br />guidelines: <br />- an estimate of the duection(s) of surface flow; <br />= stormwatez outfalls-and an outline of the drainage area of each stormwatez outfall; . <br />- each existing structural control measure to reduce pollutants in stormwatet runoff; and <br />- the location of impervious strvetures {e.g. parking lots; roofs, etc.) <br />4. Stormwater Manaeement Controls <br />Each mining operation certiSed under by this permit shall develop a description of stomrwater. quality controls <br />appropriate for that site, and implement such controls. The appropriateness and priorities of controls in the plan <br />shall reflect identified potential sources of pollutants at the mining site. The description of stormwatez quality <br />controls shall address the following minimum components, including a schedule for implementing such controls: <br />a. ; SWMP Administrator -The SWMP shall identify a specific individual or individuals within the mining <br />organiza5on who is responsrble for developing the SWMP and .assisting the mine operator in iffi <br />implementatiort, maintenance, and revision. The activities and responsibilities of the administrator shall <br />.,address all aspects of the facility's SWMP. - <br />b. ,Identification of Potential Pollutant Sources and Best Management Practices -The SWMP shall identify <br />potential sources of pollutants at the site, and assess the potential of these sources to cornnbute <br />pollutants to stormwatez discharges associated with mining activities. The SWMP must also describe <br />appropriate Best Management Practices (BMPs) to reduce the potential of these sources to contribute <br />pollutants to stormwatez discharges. At a minimum, each of the following shall be evaluated .for the <br />reasonable potential for contributing pollutants to runoff: <br />- loading and unloading operations; <br />- outdoor storage of chemicals or equiptrrent; <br />- outdoor milling or processing activities; <br />- historic mine drainage; -. - <br />- tailingsgtonds; <br />- crushing facilities or significant dust and particulate generating activities; <br />practices; and <br />- stockpiles of overburden, raw material, intermediate products, byproducts, fmished products or waste <br />products. <br />Factors to consider include the toxicity of the material; quantity of chemicals used; amount of material <br />processed; the lr7celffiood of comaet with stormwatez; and history of significant drainage, leaks or spills <br />of toxic or hazardous pollutants. <br />The description of the BMPs shall include: <br />1) stormwatez diversion: Describe how and where stormwatez will be diverted away from material <br />handling and storage azeas to prevent stormwatez contamination. <br />2) Materials handling and spill prevention: Vlrhere materials can impact stormwatez runotl <br />practices that reduce the potential for contamination sfiall be described and implemented. Fo <br />example, materials should be stored and handled in covered areas to prevent contact wit] <br />stormwatez; chemicals should be stored within berms or secondary containment devices U <br />prevent leaks and spills from entering stormwatez nmoff. <br />3) Sediment and erosion prevention: Describe practices that will be used to reduce erosion an <br />prevent sediment delivery to State waters. These could include structural (such as silt fence <br />sediment ponds, drop swctures, check dams) and non-structural (such as mulching an <br />revegeation) methods. <br />
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