1. Middle Fork Project TERR 3 – Noxious Weed Technical Study Report Overview
February 17, 2009

2. TERR 3 Study Objectives
Document Noxious Weed Populations at Existing Project Facilities and Features, Recreation Facilities, and Dispersed Concentrated Use Areas
Document Noxious Weed Populations at Potential Project Betterments, Including New Facilities, Roads, and Trails; Staging and Disposal Sites; as Well as New Inundation Areas

3. Study Implementation Implemented in Accordance with TERR 3 – TSP
Consistent with Section 2083 of the Forest Service Manual, Information and Reporting Guidelines for Noxious Weeds (USDA-FS 1995)
Conducted in Conjunction with:
Special-Status plant surveys (June, July, and August 2008)
Riparian surveys at quantitative geomorphic and riparian sampling sites (2007)

4. Noxious Weed Survey Results
27 Noxious Weed Species Identified
24 species at existing Project facilities and features
18 species at Project recreation facilities
23 species at dispersed concentrated use areas
19 species at potential Project betterments
20 species at quantitative geomorphic and riparian sampling sites

5. Noxious Weed Survey Results (continued)
Five Noxious Weed Species Identified were not Previously Recorded in the Project Area
Italian thistle (Carduus pycnocephalus)
Malta starthistle (tocalote) (Centaurea melitensis)
Canada thistle (Cirsium arvense)
White sweet clover (Melilotus albus)
Spreading hedgeparsley (Torilis arvensis)

6. Noxious Weed Survey Results (continued)
Most Abundant Noxious Weed Species:
Noxious Weed Species
Cal-IPC
CDFA
Acres
Common mullein
Verbascum thapsus
Limited -
315
Cheatgrass
Bromus tectorum
High
280
Rat-tail fescue
Vulpia myuros
Moderate
225

7. Location of Noxious Weeds – Ralston Area

8. Location of Noxious Weeds – Hell Hole Reservoir Seasonal Storage Increase Betterment