Laserfiche WebLink
Final Compensatory Mitigation and Monitoring Plan—Version 2.0 <br />Climax Mine Overburden Storage Facility Expansion (SPK-2013-00045) <br />March 2017 Bikis Water Consultants, a division of SGM Page 3 <br />1.1 CONTACT INFORMATION <br />Applicant Information: Preparer: <br />Climax Molybdenum Company Bikis Water Consultants, a division of SGM <br />C/o Raymond Lazuk, Environmental Manager C/o Dave Mehan, PWS Senior Scientist <br />Climax Mine, HWY 91 -Fremont Pass 555 Rivergate Lane, Suite B4-82 <br />Climax, Colorado 80429 Durango, Colorado 81301 <br />719-486-7584 970-385-2340 <br />rlazuk@fmi.com davem@sgm-inc.com <br />2.0 OVERALL PROJECT DESCRIPTION <br />As thoroughly documented in the Individual Section 404 Permit application and “Section 404 <br />Alternatives Analysis - McNulty Gulch Overburden Storage Facility Expansion” (BWC-SGM, <br />February 2016), expansion of the existing OSF in McNulty Gulch (Alternative 2) at the Climax <br />Mine is the least environmentally damaging and most practicable alternative that meets the <br />project purpose. McNulty Gulch is a relatively small tributary to Tenmile Creek in Summit <br />County, Colorado, which is tributary to the Blue River in the upper Colorado River basin. <br />Expansion of the OSF will provide for an additional 200 million tons (200 MT) of OSF capacity <br />and will result in unavoidable impacts to 16.08 acres of wetlands and 0.40 acre of intermittent <br />and perennial channels, and shallow open water. <br />Alternatives for wetland mitigation were evaluated in the February 2016 Wetland Mitigation <br />Proposal submitted to the Corps with the Individual Section 404 Permit application. At the time <br />of preparation of the Wetland Mitigation Proposal, the preferred option for mitigation was use of <br />the ILF Program at Camp Hale, with permittee-responsible mitigation on Climax property as a <br />second choice. However, more recent information indicates that credits from the ILF program <br />will likely not be available to meet Climax’s schedule so that this Plan is based on providing the <br />required mitigation as permittee-responsible mitigation located on Climax property. <br />Several sites for compensatory mitigation have been identified and evaluated on Climax <br />property. A relatively large area with an adequate water supply is needed. Based on evaluation <br />of potential sites, the Lake Irwin area was selected. A diverse and self-sustaining wetland <br />complex with connectivity to existing habitats will be created at Lake Irwin. As described in