LEAVENWORTH ADVENTURE PARK PLANT SURVEY REPORT PREPARED FOR: DAVID MOFFET D/R/ MOFFET & ASSOCIATES 7900 SE 28 TH ST, SUITE 236 MERCER ISLAND, WA 98040

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1 LEAVENWORTH ADVENTURE PARK PLANT SURVEY REPORT PREPARED FOR: DAVID MOFFET D/R/ MOFFET & ASSOCIATES 7900 SE 28 TH ST, SUITE 236 MERCER ISLAND, WA PREPARED BY: GRETTE ASSOCIATES LLC 151 SOUTH WORTHEN, SUITE 101 WENATCHEE, WASHINGTON (509)

2 TABLE OF CONTENTS 1 INTRODUCTION BACKGROUND INFORMATION METHODS Identification of Potential Rare Plant Species at the Site Fieldwork RESULTS Mapped Site Data WDFW PHS WDNR WNHP Qualifications REFERENCES...6 LIST OF TABLES Table 1. List of plant species observed in the Study Area...4 LIST OF FIGURES Figure 1. Vicinity map Figure 2. Project site...2 Figure 3. Survey area, showing approximate survey paths...3 Figure 4. WDNR WNHP map of the project site....5 LIST OF PHOTOGRAPHS Photograph 1. Survey area, facing upslope... a Photograph 2. Survey area, facing upslope... a Photograph 3. Top of survey area...b Photograph 4. Typical conditions within the survey area...b Photograph 5. Typical conditions within the survey area... c Photograph 6. Survey area, facing downslope... c Leavenworth Adventure Park i June 15, 2018

3 1 INTRODUCTION D. R. Moffet & Associates has contracted with to perform a plant survey within the site of the proposed Leavenworth Adventure Park (LAP). The site is located west of Icicle Road at its junction with Highway 2, in Section 11, Township 24, Range 17 East, W.M. Grette Associates staff biologists visited the site and performed plant survey work on May 15, This document presents the results of that survey. In addition, this document presents the priority habitats and species report on the site (WDFW 2018), and the Washington Natural Heritage Program rare plant population map of the site (WDNR 2018). 2 BACKGROUND INFORMATION The LAP site is located on Icicle Road at the west entrance to Leavenworth along Highway 2. To access the site, drive on State Route 2 west through Leavenworth; at the west end of Leavenworth, turn left onto Icicle Road, then take an immediate right to the site. Figure 1. Vicinity map 1 See Figure 2 Leavenworth Adventure Park 1 June 15, 2018

4 Project Site Figure 2. Project site 3 METHODS 3.1 IDENTIFICATION OF POTENTIAL RARE PLANT SPECIES AT THE SITE Prior to the site visit, Grette Associates biologists familiarized themselves with the rare plant with greatest potential to be present, showy stickseed (Hackelia venusta). This species is endemic to one population in Tumwater Canyon, within approximately 10 miles of the LAP site. 3.2 FIELDWORK A plant survey of the LAP site was conducted on May 15, 2018, to catalog plants within the proposed project footprint, and to determine if H. venusta is present in the area to be disturbed by the proposed project. The survey was conducted by two biologists with education and field application backgrounds in plant identification. The biologists walked the proposed development route and identified all plants encountered. The biologists traversed the site on rough transects, spaced approximately 40 feet so as to provide 100% visual coverage (Figure 3). Leavenworth Adventure Park 2 June 15, 2018

5 Survey area Figure 3. Survey area, showing approximate survey paths 4 RESULTS An alphabetical summary of the plants identified during the plant survey is provided in Table 1. The site is characterized as Pinus ponderosa/purshia tridentata/carex geyeri woodland community on a dry hillside with an east to northeast aspect. Rock outcrops are common. The slope of the site is approximately 30%. H. venusta was not identified within the survey area. Leavenworth Adventure Park 3 June 15, 2018

6 Table 1. List of plant species observed in the Study Area Latin name Common name Noxious Weed Status Acer macrophyllum Big leaf maple Achillea millefolium Yarrow Amelanchier alnifolia Serviceberry Balsamorhiza sagittata Arrowleaf balsamroot Carex geyeri Elk sedge Calochortus lyallii Cat s ear lily Centaurea diffusa Diffuse knapweed B Crataegus douglasii Black hawthorn Cystopteris fragilis Brittle bladderfern Delphinium nuttallii Upland larkspur Eriogonum heracleoides Parsnip-flowered buckwheat Eriogonum umbellatum Sulphur buckwheat Galium aprine Stickywilly Heuchera cylindrica Roundleaf alumroot Holodiscus discolor Oceanspray Lithophragma parviflorum Smallflower woodland-star Mahonia aquilinia Oregon grape Paxistima myrsinites Oregon boxleaf Penstemon procerus Small-flowered penstemon Philadelphus lewisii Mock orange Pinus ponderosa Ponderosa pine Poa bulbosa Bulbous bluegrass Prunus virginiana Choke cherry Polypodium herperium Western licorice fern Pseudoregneria spicata Bluebunch wheatgrass Pseudostellaria jamesiana Tuber starwort Purshia tridentata Bitterbrush Salix scouleriana Scouler's willow Sambucus cerulea Blue elderberry Smilacina stellata Starry false lily of the valley Symphoricarpos albus Snowberry Taraxacum officinale Dandelion Triteleia grandiflora Largeflower triteleia Woodsia oregana Oregon woodsia 5.1 WDFW PHS 5 MAPPED SITE DATA WDFW s priority habitats and species (PHS) database was queried for the property. No species are mapped as present on the site. Several species are mapped as present on a township or Leavenworth Adventure Park 4 June 15, 2018

7 quarter-township scale: golden eagle (Aquila chrysaetos), grizzly bear (Ursus arctos), little brown bat (Myotis lucifugus), northern spotted owl (Strix occidentalis), sharp-tailed snake (Contia tenuis), and Yuma myotis (Myotis yumanensis). It is unlikely that any of these species are present at the site. Additionally, caves/cave-rich areas is mapped as a priority habitat on the township level. No caves are present in the project area. 5.2 WDNR WNHP WDNR s Natural Heritage Program (WNHP) database was checked for rare plant populations on the site. The map is presented below as Figure 4. No rare plant populations are present on site. IN addition to H. venusta, other species of concern present in Tumwater Canyon include Seely s silene (Silene seelyi), strawberry saxifrage (Saxifragopsis fragarioides), and Thompson s chaenactis (Chaenactis thompsonii). These were not identified on site. Figure 4. WDNR WNHP map of the project site. 6 QUALIFICATIONS Ryan Walker is a Biologist with experience in forestry, wetland biology, riparian restoration and code administration. His background includes natural resource management, land-use planning and Shoreline Management Act permitting. He is a U.S. Army Corps of Engineers-certified wetlands delineator and has completed the Department of Ecology s training course for the Leavenworth Adventure Park 5 June 15, 2018

8 Washington State Wetland Rating Form for Eastern Washington and Western Washington. In addition, Ryan has training in stream typing and ordinary high water mark identification from the Washington Departments of Natural Resources and Fish and Wildlife. He has worked with local, state and federal agencies in north-central Washington on environmental permitting issues for over 18 years. Ryan is based in Wenatchee and is one of the primary biologists for projects within Chelan County. Jay Dirkse is a plant biologist with. Jay holds a B.S. in Biology from Whitworth University (2003), and an M.S. in Environmental Science from Washington State University (2006). Jay has over 13 years experience as a biologist. Since then, Jay has had extensive experience with critical areas, wetlands, and aquatic permitting in Douglas, Chelan, Okanogan, and Grant Counties, as well as extensive marine permitting and environmental assessment for projects in Puget Sound. Jay is also an experienced wetland delineator. 7 REFERENCES Parish, R., R. Coupe, and D. Lloyd Plants of the Southern Interior British Columbia and the Inland Northwest. Lone Pine Publishing. Vancouver, B.C. Whitson, T. ed Weeds of the West. 11 th Edition. Published by Western Society of Weed Science, Western United States Land Grant Universities Cooperative Extension Services, and University of Wyoming. WA DNR. Natural Heritage Program: Wetlands of High Conservation Value Online Mapper. URL: c63c47bda. Accessed 6/8/18. WDFW. Priority Habitats and Species. Online Mapper Website. URL: Accessed 6/5/18. Leavenworth Adventure Park 6 June 15, 2018

9 Photograph 1. Survey area, facing upslope Photograph 2. Survey area, facing upslope Leavenworth Adventure Park a June 15, 2018

10 Photograph 3. Top of survey area Photograph 4. Typical conditions within the survey area Leavenworth Adventure Park b June 15, 2018

11 Photograph 5. Typical conditions within the survey area Photograph 6. Survey area, facing downslope Leavenworth Adventure Park c June 15, 2018