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WSP09248
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Last modified
1/26/2010 2:52:16 PM
Creation date
10/12/2006 3:32:42 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8040.960
Description
Section D General Studies - Dams
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
1/1/2004
Author
Denver Water
Title
Williams Fork Hydroelectric Project - FERC Number 2204 - Noxious Weed Survey Report
Water Supply Pro - Doc Type
Report/Study
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />002084 <br /> <br />very small disturbed site at the head of an active gully with Canada thistle (NOX3-601) <br />(see Photograph NOX3-60 I in Appendix C), and a fourth is a nearby upland grassy site <br />(NOX3-603). As mentioned above, at NOX3-611, hounds tongue and yellow toadflax <br />occur together surrounding a utility pole, suggesting that their presence there may also be <br />in response to site disturbance (see Photograph NOX3-611 in Appendix C). At NOX3- <br />606, houndstongue occurs at about I percent cover scattered along the erosion line of the <br />reservoir margin with Canada thistle and thick rabbitbrush. <br /> <br />3.4 Musk Thistle <br /> <br />Musk thistle was encountered at four of the noxious weed sites (NOX3-602, NOX3-603, <br />NOX3-605, NOX3-609). One site consists of just a few large individuals scattered along <br />the roadway within the west campgroundlboat launch area (NOX3-609) (see Photograph <br />NOX3-609b in Appendix C). Another occurrence is with Canada thistle in one of the <br />moist meadow situations discussed above (NOX3-605). The remaining two musk thistle <br />locations are at nearby more upland grass and grass/sagebrush sites. The largest musk <br />thistle population (NOX3-603), which was delineated at 0,68 acre, is shown in <br />Photograph NOX3-603 in Appendix C. <br /> <br />3.5 Oxeye Daisy <br /> <br />Oxeye daisy was encountered at a single site at the Williams Fork Project during the <br />course of the noxious weed survey, It occurs in a wet meadow located near the Williams <br />Fork River inlet to the reservoir with willows, Canada thistle, and yellow toadflax <br />(NOX3-613) (see Photograph NOX3-613b in Appendix C). The meadow occupies about <br />one-third of an acre, and oxeye daisy appears as patches scattered throughout the <br />meadow, The site is not noticeably disturbed, and the reason for its invasion by oxeye <br />daisy is not apparent. <br /> <br />Williams Fork Reservoir <br />Hydroelectric Pruject <br />January 2004 <br /> <br />Steigers CorporatlOlI <br />Noxious Weed Survey Report <br /> <br />Page 8 <br />
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