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2011-01-24_PERMIT FILE - M2011007 (7)
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2011-01-24_PERMIT FILE - M2011007 (7)
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Last modified
8/24/2016 4:29:20 PM
Creation date
1/25/2011 8:09:25 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M2011007
IBM Index Class Name
PERMIT FILE
Doc Date
1/24/2011
Doc Name
New 110d Appl.- Ex. C, Mining Plan to EPA Data
From
Venture Resources
To
DRMS
Media Type
D
Archive
No
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the stockpile. The waste rock will be removed in phases, commencing at the most downgradient location and <br />progressing uphill. There is no overburden to be removed or stockpiled as a result of the proposed operation. <br />6.3.3(1)(d) <br />There is no "traditional" deposit being mined as part of this operation. Abandoned mine waste rock that was <br />historically placed at the surface is being processed for trace precious metal content and removal of heavy metal <br />(acid forming) contaminants. A description of this is found above in 6.33(1)(c). A track-type excavator may be <br />employed to navigate the steep terrain to consolidate material to be more easily removed with a rubber-tired front- <br />end loader. A front-end loader and/or a dump trick will be employed to transport the material to an offsite location, <br />the Venture Resources' I-lukill Gulch Millsite in Clear Creek County. <br />6.3.3(1)(e) <br />There are several significant components of this operation that are locatable in Exhibit A & E. A description of each <br />follows: <br />Abandoned Mine Waste Rock Dump - This is the location of the dump that is to be removed and reclaimed. <br />Stormwater Management Controls - These are the temporary facilities installed to mitigate stormwater runoff during <br />dump removal and excavation. <br />6.3.3(1)0 <br />The only area subject to significant disturbance is the Abandoned Mine Waste Rock Dump. For detailed dimensions <br />refer to Exhibit E. <br />6.3.3(1)(g) <br />The main access road (Virginia Canyon Rd.) is a public, county maintained road (see engineered evaluation <br />concerning permanent man-made structures in Exhibit L). Currently, the road averages 25 - 30' in width and is <br />constructed of what appears to be Class 5 road base; it is not paved in this area of Gilpin County. <br />The subject site is accessed from Virginia Canyon Rd. via an historic mining road. This road is not maintained and <br />currently averages 10-15' in width. It is constructed of native material found on location. There is no evidence of <br />any improvements or maintenance of this road in several decades. This roadway does not continue through to any <br />other major road systems. It was built solely to access the historic mine operation. <br />Occasionally, the operations will employ a front-end loader to maintain this historic access road. This could only be <br />seen as a drastic improvement over the currently existing condition of the road. Gilpin County Road and Bridge <br />Department publishes standards and issues permits for how the maintenance is to be done. No new roads are <br />currently forecasted to be constructed. <br />It shall also be noted that storing or parking equipment on public roads is not permitted. <br />6.3.3(1)(h) <br />Any water for this operation is obtained from the municipal water supply of the City of Idaho Springs via a "Water <br />Fill Station Usage Permit". It is delivered to the site by hauling in a water truck. Water usage would come from <br />dust abatement measures on an "as-needed" basis, approximately 100-200 gallons per day. <br />6.3.3(1)(i) <br />Impacts to groundwater will be controlled by stormwater management best management practices. <br />A stormwater management plan (SWMP) has been created specifically for this operation and a permit has been <br />applied for with the Colorado Water Quality Control Division. A copy of the SWMP is attached as an appendix to <br />this Exhibit C. <br />Temporary storm water management controls using silt fences and/or straw bales will be used during all phases of <br />excavation. <br />Page 3 of 8
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