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2010-07-27_PERMIT FILE - M2009076 (26)
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2010-07-27_PERMIT FILE - M2009076 (26)
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Last modified
8/24/2016 4:16:50 PM
Creation date
7/29/2010 2:59:38 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M2009076
IBM Index Class Name
PERMIT FILE
Doc Date
7/27/2010
Doc Name
Adequacy Response- Cover Ltr.
From
Venture Resources
To
DRMS
Email Name
ACS
Media Type
D
Archive
No
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11, Concerning infrastructure development and equipment: to remain after reclamation: <br />a. A single row of woven polypropylene sand bags (nominally 14"x26", 50# capacity) will be placed <br />up-gradient of the Water Holding Pond to divert run-off' stormwater. Refer to revised Exhibit C <br />& E and the S WMP. <br />b. Leachate Collection facility components to remain include the diversion ditches and concrete <br />collection barrier. Pumps, electric control panels, pipelines, sediment pond, etc. shall be <br />removed. See revised Exhibit D for this change and the costs involved. <br />c. Venture Resources will maintain our position that Mobile Millsite equipment may remain on-site <br />in an inactive state for storage, post reclamation. Attached is a letter that the DRMS accepted <br />from the Clear Creek County Senior Planner on t2-94998 that reinforces this position. The <br />zoning ordinance describing principal permitted uses has not changed since that letter was <br />written (see the CCC Zoning ordinance attached as an appendix in Exhibit D). There is a "junk" <br />provision in the zoning ordinance which Clear Creek County may elect to enforce at their <br />discretion should Venture Resources not maintain our property in a responsible manner. The <br />DRMS should not be in a position to come between a landowner and the local zoning regulations. <br />d. Any mill feed remaining at the Mobile Millsite, in the event of bond forfeiture, shall be removed <br />and placed into the Tailings Impoundment for safe disposal. Refer to revised Exhibit D for plan <br />and cost changes. <br />12. The mining and reclamation plan describe an incremental approach to operations. The new Tailings <br />Impoundment is to be installed in an area where there are pre-existing waste rock dumps. This can only <br />be done in such a way that sufficient space is made by removing a portion of this pre-existing waste rock <br />material so that a new zone of impoundment liner can be installed. In light of this, any partial excavated <br />pre-existing waste rock will be directly next to the next incremental section of liner. In the event of bond <br />forfeiture, this partially excavated pile will not pose any significant problems. It shall. be graded so that <br />there are no unstable high-wall situations. See revised Exhibit D. <br />is 13. The biosolids/woodchip soil amendment method has been abandoned. The NRCS has provided <br />recommendations which have been incorporated into a revised Exhibit D. Additionally, the DRMS <br />recommendations of Class A biosolid soil amendment have been incorporated as an alternative method. <br />Reclamation costs have also been revised, included within revised Exhibit D. <br />14. Exhibit I) has been revised to include a plan and costs to re-seed previously seeded areas with the <br />assumption that 50% of the area did not take. The reclamation costs have also been revised to reflect a <br />weed control cost of $200 per acre. <br />15. Exhibit F has been revised to reflect the following changes: <br />a. A monitoring well permit is required from the Office of the State Engineer, see issued well <br />permits attached as an appendix to Exhibit F. <br />b. A stormwater permit is required from the Water Quality Control Division, see SWMP application <br />attached as an appendix to Exhibit F and the SWMP itself attached in the appendix of Exhibit C. <br />c. It has been determined that the proposed operation is NOT in an aquatic site. Venture Resources <br />hired a US Army Corps of Engineers recommended consultant to evaluate the site. Please see HP <br />Geotech's evaluation attached as an appendix to Exhibit F. <br />16. Waste stream characterization has been done and included in Exhibit C to demonstrate that the net <br />improvement over existing conditions is quite significant. Venture Resources acknowledges that all acid <br />forming materials will not be removed, this would be an absolute that is virtually impossible to achieve. <br />The net improvement of the new tailings could be argued to be better, in respect to negative aspects of acid <br />generation, than the contribution from baseline geology in this highly mineralized vicinity. <br />• 17. Fluid management within the Tailings Impoundment has been considered in a revised Exhibit C and T. <br />a. A Tailings Impoundment Water Balance spreadsheet analysis has been included in revised <br />Exhibit C and T. <br />Page 3 of 7
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