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I • 5.0 NOXIOUS WEEDS <br />A list of noxious weeds for Delta County was developed by the Colorado Division of Minerals and <br />Geology in 1998. Of the 21 noxious weed species listed, only one was encountered within the vegetation <br />study area (Onopordum acanthium). Scattered individuals of Scotch thistle were documented from the <br />WRDA, with slightly increased densities noted from the old burn area. In all cases, density of this noxious <br />weed was observed to be "uncommon" as noted in the table below. <br /> Mixed Shrubland Juni er Woodland <br />Scientific Name Common Name Reference Reference <br /> WRDA WRDA <br /> Area Area <br />Onopordum acanthium Scotch Thistle UC - UC - <br />UB =Ubiquitous -always within view UC =Uncommon -occasionally observed within area <br />C =Very Common -uniform disVibution within area R =Rare - 2 to 5 observances <br />C =Common -scattered distribution within area VR = Ve Rare -one observance <br />It would be recommended that following project construction and during operations, a weed control <br />program be initiated to ensure this species is reduced in numbers and extent or possibly eradicated from <br />• the reasonable proximity of the proposed project area. <br />r <br />LJ <br />CEDAR CREEK ASSOCIATES, INC. Page X3 6chibit 5 - Bowie WRDA Vegetation Survey <br /> <br />