2016-04-08_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 4/8/2016
• Doc Name: Annual Fee, Report & Map
• From: Cresson Project
• To: DRMS
• Annual Report Year: 2016
• Email Name: TC1
• Media Type: D
• Archive: No

CC&V: 2015 Weed Management Report
INTRODUCTION
Habitat Management, Inc. (Habitat Management) performed noxious weed management at Cripple
Creek & Victor Gold Mine in late September and early October of 2015. Herbicides were applied
inside the mine permit boundary to noxious weed species on reclaimed lands within State of
Colorado near the Cresson Mine Project. Weed species treated in 2015 are listed in Table 1.
Table 1: Noxious Weed Species Treated During 2015
Common Name (Latin Name)
Common Name (Latin Name)
Canada thistle (Cirsium arvense)
Yellow toadflax (Linaria vulgaris)
Musk thistle (Carduus nutans)
Dalmation toadflax (Linaria dalmatica)
Scotch thistle (Onopordum acanthium)
Common mullein (Verbascum thapsus)
SUMMARY OF WEED MANAGEMENT ACTIVITIES
Habitat Management conducted noxious weed treatments under State of Colorado Commercial
Qualified Supervisor Licenses #28479 held by Anthony Matthews and License #29724 held by
Matt Clark. Noxious weeds were treated by a trained technician in weed species identification and
safe herbicide application procedures. All applicators were MSHA Part 46 & 48 trained and were
trained on current site specific safety training conducted at the Carlton entrance. Under the
Endangered Species Act, applicators are required to check herbicide application restrictions for
counties that they operate within on a monthly basis. There were no herbicide restrictions in place
during the months of September or October 2015 for Teller County, Colorado.
Herbicides were spot applied using a UTV-mounted spray rig. Only broadleaf selective herbicides
were applied to reclaimed and native areas. Broadleaf selective herbicides have a very low
potential for injury to surrounding desirable grass species. No herbicides were applied directly to
water or to drainage ways which contained water at the time of application.
Herbicide active ingredients (AIs) were combined for this year's applications. Varying and
combining herbicide AIs allows for different "modes of action" that lowers the risk of developing
chemical resistance in plants. Combining AIs also improves the effectiveness of the herbicide
activity within the plant. A surfactant was used during all applications to increase leaf adhesion
and absorption. Hi -Light Blue Indicator Dye is added as a visual aid for tracking field applications
and serves to prevent under or over application to targeted areas. This dye is inert, temporary and
typically disappears over time. The amount of time this takes is contingent upon on the soil types
and environmental conditions following application. Herbicide application rates were also varied
depending on the target species, growth stage of the targeted plant, and surrounding biomass and
environmental conditions.
Noxious weed locations were identified by Gary Horton and treatment priorities were given to
each area before herbicide applications were performed. Additionally, information about
previously treated areas by Habitat Management was used to provide locations of historic
infestations. The locations of noxious weeds treated in 2015 were recorded using GPS Dataloggers
and specific information on species treatments and locations was provided to Cripple Creek and
Victor Gold Mining Company in shapefile format.
Habitat Management, Inc. 1 December 8, 2015