Mt. Baker-Snoqualmie National Forest Invasive Plant Treatment DEIS – Appendix A Appendix A - Treatment Analysis Area Atlas Example Appendix A provides information about Treatment Analysis Area 11 to demonstrate the type of information available for each Treatment Analysis Area. Maps and information about all of the Treatment Analysis Areas on the MBS are available online at: http://www.fs.fed.us/nepa/nepa_project_exp.php?project=34208 The total infested acreage within the Treatment Analysis Area (TAA), a description of the area, and the 5th field watershed within which the TAA resides is identified for each TAA. Infested acreage is the sum of acreage for each species (please note that about 20 percent of the sites overlap within the project area and these overlaps are not accounted for in the acreage total). For each mapped invasive plant (NRIS) site, the species, name of the site, acreage, treatment objective (contain, control, or eradicate), and first year/first choice treatment to meet the objective is designated. The first year/first choice treatment method in this example and in the full TAA atlas is based on the Proposed Action. Maps have been developed to show each NRIS site within a Treatment Analysis Area. Treatment Analysis Area: 11 Treatment Analysis Area Name: I-90 Corridor in King County Infested acres: 114.8 Description: Upper South Fork of Snoqualmie River watershed from about McClellan Butte east to the county line. Although the polygon encompasses I-90 is, the treatment sites do not include the I-90 road prism itself, which is the responsibility of WSDOT and the Federal Highway Department. th 5 Field Watershed: South Fork Snoqualmie River 171100103 Table A- 1. Invasive plant species mapped within Treatment Analysis Area 11 First Year/First Choice 2012 Treatment Method for approximate Species NRIS ID Site Name Objective the Proposed Action Infested Acres (in parenthesis if method is already approved) Alpental roads 9040 orange hawkweed 6050500016 2.4 aminopyralid & PCT lots eradicate Granite Mtn. spotted knapweed 6050500023 0.3 aminopyralid trailhead eradicate orange hawkweed 6050500024 Alpental ski area 0.2 control aminopyralid Road 9031 milepost (imazapyr/glyphosate- Bohemian knotweed 6050500060 0.8 2.8 eradicate aquatic) absinth wormwood 6050500062 Denny Creek Road 2.2 control aminopyralid orange hawkweed 6050500071 Denny Creek Road 13.6 control aminopyralid meadow hawkweed 6050500072 Denny Creek Road 13.6 control aminopyralid common hawkweed 6050500073 Denny Creek Road 3.3 control aminopyralid Denny Ck Rec Res yellow archangel 05-AR-073 0.1 (glyphosate-aquatic) #4 eradicate A-1 Mt. Baker-Snoqualmie National Forest Invasive Plant Treatment DEIS – Appendix A First Year/First Choice 2012 Treatment Method for approximate Species NRIS ID Site Name Objective the Proposed Action Infested Acres (in parenthesis if method is already approved) Asahel Curtis spotted knapweed 05-DL-001 0.3 aminopyralid trailhead eradicate Mason Ck; Menke (imazapyr/ Bohemian knotweed 05-KB-049 acquisition(a.k.a. I- 0.7 90 Exit42) eradicate glyphosate-aquatic) Bandera/Rd Scotch broom 05-KM-007 4.0 aminopyralid 5510&110 spur contain Bandera; Rd 5510- Scotch broom 05-KM-008 5.0 broadcast-aminopyralid 160 contain Scotch broom 05-KM-077 Road 9030 3.0 control broadcast-aminopyralid RR tracks @ dalmatian toadflax 05-KM-078 8.7 chlorsulfuron Humpback Ck control "I-90 below orange hawkweed 05-KM-079 underpass, Wbound 0.8 aminopyralid lanes control Pratt R. stockpile/ tansy ragwort 05-KW-002 0.2 aminopyralid borrow pit eradicate Pratt R. stockpile/ herb Robert 05-KW-003 0.2 glyphosate borrow pit eradicate Pratt R. stockpile/ sulphur cinquefoil 05-KW-004 0.2 metsulfuron methyl borrow pit eradicate Pratt R. stockpile/ Scotch broom 05-KW-005 0.2 (hand-pull) borrow pit eradicate Pratt R. stockpile/ orange hawkweed 05-KW-006 0.2 aminopyralid borrow pit eradicate Pratt R. stockpile/ spotted knapweed 05-KW-007 0.2 aminopyralid borrow pit eradicate Scotch broom 05-KW-013 John Wayne Trail 0.6 control (hand-pull) dalmatian toadflax 05-KW-014 John Wayne Trail 0.6 control chlorsulfuron spotted knapweed 05-KW-015 John Wayne Trail 0.1 eradicate aminopyralid McClellan Butte sulphur cinquefoil 05-KW-022 0.1 metsulfuron methyl Trailhead eradicate Tinkham herb Robert 05-KW-023 9.6 (hand-pull) Campground eradicate S Fk Snoqualmie tansy ragwort 05-KW-024 1.9 aminopyralid Gravel Bars contain S Fk Snoqualmie spotted knapweed 05-KW-025 1.9 aminopyralid Gravel Bars control Snow Lake parking spotted knapweed 05-KW-026 7.2 aminopyralid lot eradicate Snow Lake orange hawkweed 05-KW-027 0.1 aminopyralid Trailhead eradicate tansy ragwort 05-KW-037 Rd 5510-310 0.1 contain aminopyralid Rd 5510-410, sec woolly hedgenettle 05-KW-038 0.1 glyphosate 21 eradicate A-2 Mt. Baker-Snoqualmie National Forest Invasive Plant Treatment DEIS – Appendix A First Year/First Choice 2012 Treatment Method for approximate Species NRIS ID Site Name Objective the Proposed Action Infested Acres (in parenthesis if method is already approved) Rd 5510 Hansen tansy ragwort 05-KW-039 0.1 (hand-pull) Creek contain Rd 5510-410, sec spotted knapweed 05-KW-040 0.1 (hand-pull) 28 eradicate (imazapyr/glyphosate- Bohemian knotweed 05-LP-021 Mason Lake Rd 0.1 eradicate aquatic) I-90 m.p. 38 to MBS dalmatian toadflax 05-LP-083 13.1 chlorsulfuron boundary control meadow knapweed 05-TF-001 Road 5800 0.1 eradicate aminopyralid tansy ragwort 05-TF-002 Road 5800 0.1 contain (hand-pull) Road 5800 East spotted knapweed 05-TF-003 13.6 aminopyralid (revisit) control Road 5800/9040 orange hawkweed 05-TF-004 0.1 aminopyralid junction control herb Robert 05-TF-005 McClellan Butte TH 1.9 eradicate (glyphosate-aquatic) spotted knapweed 05-TF-006 McClellan Butte TH 1.9 eradicate (hand-pull) common hawkweed 05-TF-015 Road 9020 0.1 control aminopyralid Road 9020, Scotch broom 05-TF-016 0.1 aminopyralid milepost 7.6 control Denny Ck Rec Res yellow archangel 05-TF-023 0.1 (glyphosate-aquatic) #4 eradicate Bohemian knotweed 05-TF-040 9030 Rd 0.1 eradicate imazapyr/glyphosate Pratt R. stockpile/ dalmatian toadflax 05-TF-076 0.2 chlorsulfuron borrow pit eradicate Commonwealth orange hawkweed 05-VW-074 0.6 aminopyralid Campground eradicate A-3 M t. a er-Snoq ualmie National orest nvasive lant Treatment DE I S – Appendix A Figure A- 1. Treatment Analy sis Area 11 overview map A-4 M t. a er-Snoq ualmie National orest nvasive lant Treatment DE I S – Appendix A Figure A- 2. Map of Eastern Portion of Treatment Analy sis Area 11 A-5 M t. a er-Snoq ualmie National orest nvasive lant Treatment DE I S – Appendix A Figure A- 3 . Map of Central Portion of Treatment Analy sis Area 11 A-6 M t. a er-Snoq ualmie National orest nvasive lant Treatment DE I S – Appendix A Figure A- 4. Map of Western Portion of Treatment Analy sis Area 11 A-7 Mt. Baker-Snoqualmie National Forest Invasive Plant Treatment DEIS – Appendix A This page left blank intentionally A-8 Mt. Baker-Snoqualmie National Forest Invasive Plant Treatment DEIS – Appendix B Appendix B – Restoration/Revegetation Strategy for Each Infested Site Revegetation of treated invasive plant sites is proposed for the action alternatives, based on the following assumptions: Revegetation might not occur after first year if we are going to repeat treatments in consecutive years. Planting or seeding will be timed to avoid any temporary risk that might be impact desirable species according to label specifications, and/or the species being planted is not affected by the herbicide being used (e.g., grasses being used for revegetation in area where the herbicide only targets composites). Each treatment site is classified into one of five categories: 1. Passive Revegetation. Site is expected to revegetate naturally because there are enough native species (or desirable non-natives (e.g. lawns in administrative sites) in the immediate vicinity to colonize once the weeds are killed. Site types include vegetated road shoulders, small areas in forested sites. 2. None. These are areas where revegetation is either not desirable, or not realistic, or not relevant/inappropriate. Not desirable because the area is naturally unvegetated such as a gravel bar. Not realistic if the area is constantly being graded or cleared such as boneyards or gravel pits. Inappropriate in cases such as a tree climbing vine like ivy or clematis where it would be inappropriate to replace the tree climbing species with a different species. 3. Seed and Mulch. This is the prescription for use where there are not enough native species in the immediate vicinity to colonize once the weeds are killed but planting is not prescribed. Examples include areas targeted for broadcast treatment. Use local native seed mix if possible, otherwise use MBS non-invasive non-native species (per Potash and Aubry 1999, as amended in 2003). 4. Plant Rooted Stock. For specific restoration projects, or where the weed has to be excavated in order to control it (where first-choice/first-year treatment is dig or where there’s big areas of shrub-like weeds). Some sites are already treated and planted. 5. Planted. Past tense. Some examples include portions of Marblemount Boat Launch, Ovenell property, Kaaland aquistion, Skiyou Island. B-1 Mt. Baker-Snoqualmie National Forest Invasive Plant Treatment DEIS – Appendix B Table B- 1. Revegetation strategy Invasive Plant NRIS Revegetation TAA # TAA Name Invasive Plant Species Invasive Plant Site Name # Strategy TAA 01 Evans Creek tansy ragwort 05-LP-037 Rd 7920 Sec 8 passive TAA 01 Evans Creek tansy ragwort