CP Lake Year 4 Monitoring

Central Packwood Lake Vegetation Annual Report Permit No. WA0037338

Prepared for: TransAlta Centralia Mining LLC 913 Big Hanaford Road Centralia, WA 98531 Contact: Dennis Morr (360) 623-9318

Prepared by: Cascade Environmental Group, LLC 2800 N Lombard #803 Portland, Oregon 97217 (503) 894-8585 Contact: Tammy Stout

June 2021

Cascade Environmental Group, LLC. Central Packwood Lake Vegetation Annual Report Permit No. WA0037338. June 2021. Portland, OR. Prepared for TransAlta Centralia Mining LLC, Centralia, WA.

Table of Contents

Section Page 1 Introduction 1 1.1 Site Description 1

1.2 Monitoring Report Details 1

1.3 Central Packwood Lake Reclamation Summary 2

2 Monitoring Methods 3 2.1 Vegetation Monitoring 3

2.2 Photographic Documentation 4

3 Monitoring Results 4 3.1 Vegetation 4

3.2 Additional Monitoring Observations 6

4 Summary and Recommendations 6 Figure and Appendices 7

Tables Page Table 1. Planted Vegetation Performance Standards and Results ...... 5

Figures and Appendices Figure 1. Planting Zones and Monitoring Plan

Appendix A. Planting Plan

Appendix B. Photo Documentation

Appendix C. Vegetation Data

1 Introduction

This short report describes compliance monitoring for Year 4 (2021) of the TransAlta Centralia Mining, LLC (TCM) Central Packwood Lake site. The original site design is summarized in the TransAlta Centralia Mine Central Packwood Reclamation Plan (Reclamation Plan; Norwest Corporation 2012). Cascade Environmental Group LLC assisted TCM with the planting component of the Reclamation Plan for the wetland, riparian forests, and aquatic habitat areas of the site. Plant installation was implemented in early spring 2017. Year 4 site monitoring took place in early summer in 2021. Site monitoring in this report addresses site vegetation growth of the wetland, riparian and lowland forests, and aquatic areas as outlined in the Reclamation Plan. Monitoring activities include assessing survival and development of planted vegetation and photo documentation of plant growth for the habitat areas created in the wetland, riparian forests, and aquatic areas of the Central Packwood Lake site; upland plantings in the larger Packwood larger “watershed” or drainage area are only qualitatively described. 1.1 Site Description

The Central Packwood Lake is a large impoundment with a surface area of approximately 216.6 acres and a capacity of 13,400 acre feet. The lake is located along the northern perimeter of the Central Field adjacent to Big Hanford Creek. When the lake is full it discharges to Big Hanaford Creek. TCM revegetated the site with lowland forests, riparian areas, and wetland aquatic areas associated with the lake as set forth the Permit Application Package (PAP) for the TCM reclamation. The Central Packwood Lake habitat reclamation areas represent only one aspect of the larger reclamation plan for the Central Packwood area; plantings around the lake are the primary focus of this report. 1.2 Monitoring Report Details

This monitoring report addresses the vegetation growth reporting requirements in Section S7 of the Department of Ecology NPDES permit that states: 1. Vegetation /plant growth update annual report. This report must include the drainage area that drains to the Central Packwood Lake and the channel from the Central Packwood Lake to Hanaford Creek. Permit number assigned by Ecology is: WA0037338.

The report was prepared by: The report was prepared for: Cascade Environmental Group, LLC TransAlta Centralia Mining, LLC 2800 N Lombard #803 913 Big Hanaford Road Portland, Oregon 97217 Centralia, WA 98531 Contact: Tammy Stout (503) 894-8585 Contacts: Dennis Morr (360)330-8209

1 | Page

Central Packwood Lake Reclamation Site – Year 4 Monitoring Report June 2021

This monitoring report covers Year 4 (2021) and the monitoring site visit occurred on June 2, 2021. This report primarily addresses the planted vegetation along the lakeshore, the lowland forests and riparian zones immediately adjacent to the lake, and both the inlet and outlet drainages (refer to the planting plan included as Appendix A). This monitoring report includes photo documentation, found in Appendix B. 1.3 Central Packwood Lake Reclamation Summary

TCM is completing the re-establishment of riparian and wetland habitat in lowland areas of the mining reclamation area to provide areas for fish and wildlife by incorporating a diverse and broad range of trees and shrubs. Streams, wetlands and riparian habitat for fish and wildlife are being established in the Central Packwood Lake project area to restore habitats for deer, elk, coho salmon, steelhead and other fish and wildlife species. Grasslands, wetlands, riparian zones, and plant diversity along the re- established drainageways are an integral part of the reclamation plan to provide cover, edge effect, and food sources for the primary species as well as for other wildlife resources. In addition to providing habitat, riparian areas and wetlands are beneficial for flood storage, baseflow and groundwater support, erosion and shoreline protection, water quality improvement, biological support and wildlife habitat functions. As a result of the construction of artificial drainage channels for mining activities, many of the wetlands have been converted to riparian areas or pasturelands. TCM’s reclamation plan will recreate riparian and wetland habitat over roughly twice the area in which it existed under pre-mining conditions, of which Central Packwood Lake habitats are a component. Habitat reclamation at the Central Packwood Lake consisted of seeding appropriate seed mixes to the habitats, or installation of tubers, rhizomes, live stakes, emergent plugs, containerized and bare root plantings. The Central Packwood Lake habitat reclamation plan includes the following planting zones:

• Riparian Forest (High Water Gradient) • Lowland Forest A • Lowland Forest B • Wetland • Littoral- Emergent Wetland • Littoral- Aquatic Wetland

Seed mixes and planting palettes were specified for each individual planting zone as shown in Appendix A. Riparian Forest: Both the inlet and outlet channel was revegetated as a riparian vegetation community /stream channel; the shrubs and trees approved for planting in these areas include both

2 | Page

Central Packwood Lake Reclamation Site – Year 4 Monitoring Report June 2021 upland and wetland plants as this zone includes wet areas in the floodplain and extends upslope from the floodplain. Although willows are included on the list of species, TCM did not plant willows in the riparian areas of the Central Packwood Lake outlet channel at the recommendation of National Marine Fisheries Services (NMFS) in its Essential Fish Habitat (EFH) consultation. Additionally, the channel bottoms were left unplanted; both measures that were requested by NMFS to augment fish habitat. A riparian seed mix was applied across these zones; species included in the mix range along the wet to dry gradient. Lowland Forest A and B: These forested areas also span the wet to dry gradient, with the Lowland Forest B occupying the wetter of the two. These habitats occupy the areas upslope from the inlet and outlet channels and comprise the majority of the acreage at the Central Packwood Lake site. These areas are primarily intended as wildlife habitat. Wetland: Wetland planting zones flank the inlet channel and were planted with seed mixes, emergent tubers or plugs, and woody stems. Wetland communities in the reclamation plan include both an emergent community and a scrub-shrub community. These plant communities provide habitat value and other wetland functional attributes such as cooling, shade, and improvement of water quality. Littoral Zones: These littoral zones are situated along the shore of the lake and provide area for the establishment of emergent plants. The zone provides wetland and shoreline habitat for fish and wildlife and consists of both emergent and permanently wet aquatic plants. Additionally, TCM placed habitat enhancement features (e.g. tethered logs, woody debris, root wads, etc.) at a density of approximately 1 feature per 2,500 square feet in the littoral zone around the perimeter of the lake and the inlet and outlet channels, or approximately 29 acres.

2 Monitoring Methods

Monitoring was conducted on June 2, 2021 by qualified biologists, one of whom who assisted with plant installation, and the collected data were used to assess plant growth and survival. The vegetation was not assessed against performance standards, but quantitative estimates were made to determine approximate native stems per acre, to estimate cover of the seed mixes, and identify stems per acre of woody invasive species in order to inform maintenance activities. The following sections describe the monitoring methods used at the Central Packwood Lake site during the Year 4 monitoring effort. 2.1 Vegetation Monitoring

Vegetation monitoring was completed with a repeat of prior years monitoring. Temporary vegetation plots measuring 25’x25’ were randomly placed in the Riparian, Lowland Forest A and B, and Wetlands planting zones as shown in Figure 1. For each plot, all stems were counted and tallied by species for tree and shrubs. Within the 25’x25’ plots, 2 smaller “nested” 3’x3’ herbaceous plots

3 | Page

Central Packwood Lake Reclamation Site – Year 4 Monitoring Report June 2021 were established to estimate the cover the herbaceous layer. Within each nested plot dominant species (observed to be covering more than 20% of plot area) were noted. To estimate herbaceous cover within the 25’x25’ plots, cover for each nested plot was averaged. Plot locations relative to the planting habitat zones are shown in Figure 1. Littoral zones are very narrow in most zones and in some cases, overlapped with other planting zones or water and are still putting on the annual growth as the lake seasonally draws down. This zone was qualitatively assessed for cover and species present. 2.2 Photographic Documentation

Photo stations were installed in various strategic locations throughout the Central Packwood Lake site in order to portray conditions of each of the planting zones and site conditions in general. Figure 1 shows photo station locations. Site photographs are included in Appendix B.

3 Monitoring Results

The following text summarizes the results of Year 4 monitoring of the Central Packwood Lake site. Across the site 16 plots were assessed for the Riparian, Lowland Forest A and B, and Wetlands. The results are summarized below and data are found in Appendix C. 3.1 Vegetation

The performance of the installed trees and shrubs varied across the planting zones. Some areas of the site have good vigor and a dense planting of woody trees and shrubs that have survived the 4 years since installation occurred. In particular, the Lowland Forest A and B zones have seen very vigorous growth from plantings, including adventitious recruitment of new stems by species like salmonberry (Rubus spectabilis) and ninebark (Physocarpus capitatus). Year 4 randomly placed 25’x25’ plots did capture areas of low stem density, pulling down the site average for Lowland Forest A, but the site has good coverage in most areas. The grass seed and some of the emergent plugs/tubers appears to have good coverage across the site, especially in areas with lower woody vegetation density. Herbaceous dominants included the native species tufted hairgrass (Deschampsia cespitosa), velvet grass (Holcus lanatus), and common rush (Juncus effusus). Bare soil area has gone done in Year 4 as the herbaceous and woody cover increases. Table 1 lists the results of vegetation monitoring by planting zone.

4 | Page

Central Packwood Lake Reclamation Site – Year 4 Monitoring Report June 2021 Table 1. Planted Vegetation Performance Standards and Results

Herbaceous Cover Planting Zone Stems/ac Estimate (averaged across plots) (averaged across plots)

Riparian 88% 1,115

Lowland Forest A 81% 465

Lowland Forest B 92% 894

Wetland 100% 906

Littoral 95% N/A (no woody stem plantings)

Planted material observed was in fair to good condition with some ongoing mortality of the plantings observed; salmonberry, Oregon ash (Fraxinus latifolia), vine maple (Acer circinatum), and snowberry (Symphoricarpos alba) were observed to be the most vigorous.

Comparison of the prior Inletsyear's t photoso Central shows Packwood apparent Lake growth of the vegetation. The temporary inlet channel is outside wetland habitat reclamation plan specific to the Central Packwood Lake and reclamation grading/planting was completed a year after the rest of the monitoring area. The Douglas fir seedlings in these areas appear to have fair to good survival (spring 2019 planting). Refer to the photo appendix for photos of this area (Photo point 5). Outlet Channel from Central Packwood Lake to Hanaford Creek The outlet channel, including the Riparian planting area, currently has good woody vegetation development in the channel and excellent grass/emergent cover. In addition to the dense emergent vegetation cover, this is part of the Riparian zone and the palette contains Oregon ash, red alder (Alnus rubra) and mixed willows (Salix spp.), all of which are surviving in good numbers and will continue to provide increasing cover. The Oregon ash appears to be surviving elk browsing and is increasing in height. This channel has seasonal flows and the emergent vegetation in the thalweg was still developing at the time of the monitoring visit since the water was still drawing down, but the emergent vegetation is providing dense cover. Lowland A Woody plant success in Lowland A is highly variable, but excellent overall. Patches of mortality, likely due to elk browse, have resulted in the formation of meadows composed mostly of seeded grasses. Successful plants include thimbleberry (Rubus parviflorus), trailing blackberry (Rubus ursinus), and tufted hairgrass. Lowland B Lowland B currently has excellent woody plant development, with the highest observed stems per acre of any planting zone. There are numerous successful woody plants, including thimbleberry, Oregon ash, ninebark, and snowberry.

5 | Page Central Packwood Lake Reclamation Site – Year 4 Monitoring Report June 2021

Wetland The wetland planting area has only moderate woody planting success, but high levels of herbaceous plant growth. The single stem count plot taken in this zone may underrepresent the development of woody plants as survival appears to be moderately high, but with relatively few plants developing multiple leaders/adventitious sprouting that accounts for the high stem counts in other areas. Littoral Zones Vegetation in the littoral zone appears to be developing a dense emergent and aquatic community around the shoreline. The zone is dominated by common rush (Juncus effusus), cattail (Typha sp.), common spikerush (Eleocharis palustris), panicled bulrush (Scirpus microcarpus), mixed sedges (Carex spp.), and hardstem bulrush (Scirpus acutus). Invasive Species Three invasive species of concern were noted at the site: reed canarygrass (Phalaris arundinacea), Armenian blackberry (Rubus armeniacus), and Scotch broom (Cytisus scoparius). Of those, only the latter two appear to be present with significant coverage. In particular, the numerous Armenian blackberry seedlings were observed in the Lowland zones. 3.2 Additional Monitoring Observations

The “drainage area” to Central Packwood Lake referred to in the permit was qualitatively assessed for plant growth. This includes slopes above and but outside the Central Packwood Lake wetland habitat reclamation areas These areas have been planted sequentially over the last 7 years with Douglas fir. Douglas fir survival and growth appears to be good, with stem counts ranging from 10- 12 feet on-center (436 -303 stems/ac). Photos of these areas of the larger “drainage area” are shown in Appendix B.

4 Summary and Recommendations

Year 4 monitoring results indicate that the site has good native herbaceous cover and moderate to excellent tree /shrub growth in most zones. The Lowland Forest A and B zones exhibit much higher stems/acre survival of woody plants than in preceding years, and while gaps in woody vegetation is persisting, high native herbaceous cover is providing excellent soil stabilization and wildlife habitat value. The site appears to be on a good development trajectory and is expected to meet compliance requirements in the future. Cascade Biologists recommend the following to ensure continued performance: Invasive species management: It is recommended that site management continue to keep the invasive species at the current low cover, particularly Scotch broom and Armenian blackberry. TCM has a Scotch broom treatment program being implemented in this reclamation area scheduled for 2021.

6 | Page

Figure and Appendices

7 | Page

8 | Page

plot 1 !H Legend !H Plots ppt 1 !H plot 5 !H Photo Points !H Creek plot 2 Road !H plot 4 plot 3 !H Planting Zones !H Aquatic Bed Emergent ppt 2 !H Lowland A plot 6 Lowland B !H plot 10 Riparian !H plot 9 Water plot 7 !H !H Wetland plot 8 ppt 3 !H!H ppt 4 plot 13 !H !H ppt 6 !H plot 11 !H !H plot 12 ppt 5 ppt 8 !H !H plot 15 Inlet !H ppt 7 plot 14!H ppt 9 !H plot 16!H !H

Approximate inlet location I! Date: 6/14/2019

Scale: 1 inch =1,000 feet Planting Plan

0 500 1,000 Central Packwood Lake Reclamation Feet Figure 1. Z:\GIS\102_Packwood\Packwood_PlantingPlan.mxdand Monitoring LEGEND: SEE ALSO DETAILED CROSS SECTIONS ON DRAWINGS 5.3 AND 5.4 OF CENTRAL ROAD PACKWOOD LAKE PLAN CREEK NO WILLOWS PLANTED IN OUTLET CHANNEL OR RIPARIAN AREA ADJACENT CULVERT TO THE OUTLET CHANNEL PONDED AREA

NO TREE OR SHRUB PLANTING WITHIN REVISIONS 40'-WIDE CHANNEL BOTTOM IN THIS AREA. CHANNEL EXTENT TO BE STAKED IN FIELD BY QUALIFIED WETLAND SPECIALIST

KEY PLAN

CONTINUE RIPARIAN PLANTING IN AN

8'-WIDE STRIP AROUND WETLAND NW Davis St. Suite 317 222 www.cascadeenv.com 503.894.8585 Portland, Oregon 97209

SEE ALSO DETAILED CROSS SECTIONS ON DRAWING 5.4 OF CENTRAL PACKWOOD LAKE PLAN NO TREE OR SHRUB PLANTING WITHIN 25'-WIDE CHANNEL BOTTOM IN THIS AREA. CHANNEL EXTENT TO BE STAKED IN FIELD BY QUALIFIED WETLAND SPECIALIST

CENTRAL PACKWOOD LAKE PLANTING PLAN CENTRAL PACKWOOD LAKE

July 2015 DRAWN BY: AMM DESIGNED BY: AMM/TS CHECKED BY: TS SEE SHEET P2 FOR PLANTING LEGEND AND P3 FOR PLANTING DETAILS SHEET NUMBER

P1 OF 5 PROJECT NO. ALL ELEVATIONS IN FEET ABOVE SEA LEVEL PRELIMINARY - NOT FOR CONSTRUCTION 00102 PLANTING LEGEND LOWLAND FOREST A

RIPARIAN FOREST - HIGH WATER GRADIENT Lowland Forest Reclamation Area A Shrubs and Trees; Total Acreage: 34.45 acres Potential Planting Plant Recommended Natural Potential Community Primary Species Density per Spacing Total Plants Established Density Riparian Forests Reclamation Shrubs and Trees with High Water Gradients; Total Acreage 4.66 acres Type Common Name (Scientific Name) Acre(a) (ft)(b) Needed per acre Density Seedling Plant Type Common Name Spacing (ft)(a) Type Form Western Red Cedar Thuja plicata 81 23 2,790 104 Scientific Name (#/acre) Total Plants (b) Needed Douglas Fir Pseudotsuga menziesii 81 23 2,790 235 Cascara Rhamnus purshiana 100 20 x 20 BR/C 466 Vine Maple Acer circinatum 392 11 13,504 235 Thuja/Athyrium Douglas spirea Spiraea douglasii 50 30 x 30 BR/C 233 Twinflower Linnaea borealis 1089 6 37,516 235

Hawthorn Crataegus douglasii 100 20 x 20 C 466 Salmonberry Rubus spectabilis 392 11 13,504 235 REVISIONS Indian pulm Oemlaria cerasiformis 50 30 x 30 C 233 Pacific Blackberry Rubus ursinus 392 11 13,504 235 Shrub Red elderberry Sambucus racemosa 50 30 x 30 C 233 Total Plants Per Acre 2,427 Red-osier dogwood Cornus stolonifera 200 15 x 15 BR/C 932 Total Plants Per Zone 83,610 salmonberry Rubus spectablis 100 20 x 20 LS 466 Notes: From Table 5.5-8 and Section 5.5.4 in OSM Permit NO. WA-0001E. Vine maple Acer circinatum 50 30 by 30 C 233 (a) Required planting density per acre Sitka willow (c) Salix sitchensis 200 15 x 15 BR/C 932 based on 60% survival of initial planted material to five years. Bigleaf maple Acer macrophyllum 100 20 x 20 C 466 (b) Plant spacing shown in the above Cottonwood Populus trichocarpa 500 9 x 9 BR/C 2330 table is spacing per species type; overall NW Davis St. Suite 317 spacing of stems will be an average 4’ 222 www.cascadeenv.com 503.894.8585 Oregon ash Fraxinus latifolia 500 9 x 9 BR/C 2330 OC. Portland, Oregon 97209 Tree Red alder Alnus rubra 200 15 x 15 BR/C 932 Sitka spruce Picea sitchensis 50 30 by 30 BR/C 233 Western redcedar Thuja plicata 100 20 x 20 BR/C 466 Total Plants Per Acre 2,350 LOWLAND FOREST B Total Plants Per Zone 10,951 Notes: From Table 5.5-10 and Section 5.5.5 in OSM Permit NO. Lowland Forest Reclamation Area B Shrubs and Trees; Total Acreage: 36.24 acres WA-0001E. Potential Planting Plant Recommended Natural Potential Community Primary Species (a) Based on 1 gallon container Density per Spacing Total Plants Established Density Type Common Name (Scientific Name) sized seedlings Acre(a) (ft)(b) Needed per acre (b) BR = bare root; C = containerized; LS = live stake Oregon Ash Fraxinus latifolia 175 16 6,342 104 (c) Willows will not be planted in Vine Maple Acer circinatum 392 11 14,206 235 the riparian forest areas around the outlet channel area or in the Red osier dogwood Cornus stolonifera 392 11 14,206 235 outlet channel of the Central Fraxinus/ Symphoricarpos Packwood Lake. Pacific Ninebark Physocarpus capitatus 392 11 14,206 235 Salmonberry Rubus spectabilis 392 11 14,206 235 Snowberry Symphoricarpos albus 392 11 14,206 235 Riparian Forests Total Plants Per Acre 2,135 Reclamation Seed Total Plants Per Zone 77,372 Mixtures with High Water Gradients Notes: From Table 5.5-8 and Section 5.5.4 in OSM Permit NO. WA-0001E. Density Indicator Status (a) Mix (%) Common Name Scientific Name (Ibs/acre) (a) Required planting density per acre based on 60% survival of initial planted Red fescue Festuca rubra var. rubra FAC 40 24 material to five years. Agrostis alba (b) Plant spacing shown in the above Redtop FACW 15 9 table is spacing per species type; overall Timothy Phleum pratense spacing of stems will be an average of FACU 5 3 4-5’ OC CENTRAL PACKWOOD LAKE Tufted hairgrass Deschampsia cespitosa FACW 15 9 PLANTING LEGEND Western rye Elymus glaucus FACU- 25 15 Notes: Notes: From Table 5.5-9 and Section 5.5.5 in OSM Permit NO. WA-0001E. Application rate is recommended to be 20 lbs/acre.

(a) FAC: Equally likely to occur in wetlands and non-wetlands; FACU: Facultative Upland. Usually occur in non-wetlands, but occasionally found in Lowland Forest Reclamation Seed Mixtures - Both A and B Areas; Total Acreage: 70.2 acres wetlands; FACW: Facultative Wetland. Usually found in wetlands, but occasionally found in non-wetlands; OBL: Obligate wetland. These species almost always occur under natural conditions in wetlands. Common Name Scientific Name Mix Red fescue Festuca rubra var. rubra 40% Soft rush Juncus effuses 5% Tufted hairgrass Deschampsia cespitosa 15% Western (Blue wild) rye Elymus glaucus 40% Notes: From Table 5.5-7 and Section 5.5.4 in OSM Permit NO. WA-0001E. Application rate is recommended to be 20 lbs

July 2015 DRAWN BY: AMM DESIGNED BY: AMM/TS CHECKED BY: TS NOTE SHEET NUMBER

PLANTING AREAS WILL BE STAKED IN THE FIELD BY A QUALIFIED WETLAND P2 OF 5 SPECIALIST PRIOR TO COMMENCEMENT OF PLANTING OPERATIONS PROJECT NO. PRELIMINARY - NOT FOR CONSTRUCTION 00102 PLANTING LEGEND

WETLAND

Wetlands Reclamation Shrubs and Trees; Total Acreage: 4.79 Total Plants Habitat Type Plant Type Common Name Scientific Name Density (# / acre) (a) Spacing (ft)(a) Seedling Type Form (b) Needed Herbaceous Beaked sedge Carex utriculata 190 5” BR/P 910 Hardstem bulrush Scirpus acutus 180 5” P/C 862 REVISIONS Inflated sedge Carex vesicuria 190 5” P/C 910 Narrow-leaf burreed Sparganium emersum 180 5” P/C 862 Reed mannagrass Glyceria grandis 190 5” P/C 910 Rice cutgrass Leersia oryzoides 180 5” BR/P 862 Saw-beaked sedge Carex stipata 190 5” S 910 Palustrine Emergent Wetland Skunk cabbage Lysichiton americanum 85 5” RZ/BR/P 407 Slender rush Juncus tenuis 190 5” S 910 Slough sedge Carex obnupta 190 5” BR/P 910 NW Davis St. Suite 317 Scirpus microcarpus 222 TU/BR/P www.cascadeenv.com 503.894.8585 Small-fruited bulrush 180 5” 862 Portland, Oregon 97209 Soft-stemmed bulrush Scirpus validus 190 5” BR/P 910 Tall mannagrass Glyceria elata 190 5” RZ/BR/P 910 Thick-head sedge Carex pachystachya 190 5” P/C 910 Wapato Sagittaria latifolia 190 5” BR/P 910 Woody Black hawthorne Crataegus douglasii 80 8 BR/C 383 Blue elderberry Sambucus cerulea 80 8 BR/C 383 California black currant Ribes bracteosum 80 8 BR/C 383 Crabapple Malus fusca 80 8 BR/C 383 Douglas’ spirea Spirea douglasii 80 8 BR/C 383 Pacific ninebark Physocarpus capitatus 80 8 BR/C 383 Palustrine scrub-shrub wetland Pacific willow Salix lasiandra 80 8 BR/C 383 Piper’s willow Salix piperi 80 8 BR/C 383 Prickly currant Ribes lacustre 80 8 LS 383 Red-osier dogwood Cornus stolonifera 80 8 BR/C 383 Salmonberry Rubus spectabilis 80 8 BR/C 383 Sitka willow Salix sitchensis 80 8 LS 383 Total Plants Per Acre 3,665 Total Plants Per Zone 17,555 Notes: From Table 5.5-13 and Section 5.5.6 in OSM Permit NO. WA-0001E. (a) Based upon availability and are subject to change (b) BR = bare root; C = containerized; LS = live stake; P = plug; RZ = rhizome; S = seed; TU = tuber CENTRAL PACKWOOD LAKE PLANTING LEGEND Wetlands Reclamation Seed Mixtures; Total Acreage 4.79 Water Regime Common Name Scientific Name Indicator Status (a) Mix Creeping spike rush Eleocharis palustris OBL 10% Slough sedge Carex obnupta OBL 35% Persistently Wet Small-fruited bulrush Scirpus microcarpus OBL 25% Soft rush Juncus effuses FACW 15% Water plantain Alisma plantago-aquatica OBL 15% Red fescue Festuca rubra var. rubra FAC 40% Redtop Agrostis alba FACW 15% Seasonally Wet Timothy Phleum pratense FACU 5% Tufted hairgrass Deschampsia cespitosa FACW 15% Western rye Elymus glaucus FACU- 25% July 2015 Notes: Notes: From Table 5.5-13 and Section 5.5.6 in OSM Permit NO. WA-0001E. Application rate is recommended to be 20 lbs/acre. DRAWN BY: AMM DESIGNED BY: AMM/TS (a) FAC: Equally likely to occur in wetlands and non-wetlands; FACU: Facultative Upland. Usually occur in non-wetlands, but occasionally found in wetlands; FACW: Facultative Wetland. CHECKED BY: TS Usually found in wetlands, but occasionally found in non-wetlands; OBL: Obligate wetland. These species almost always occur under natural conditions in wetlands. SHEET NUMBER

P3 OF 5 PROJECT NO. PRELIMINARY - NOT FOR CONSTRUCTION 00102 PLANTING LEGEND

LITTORAL: EMERGENT WETLAND

Littoral Zone - Emergent Area Reclamation Seed Mixtures; Total Acreage 19.73 Water Regime Common Name Scientific Name Indicator Status (a) Mix Littoral Zone - Emergent Area Reclamation Seed Mixtures; Total Acreage 19.73 Creeping spike rush Eleocharis palustris OBL 10% Water Regime Common Name Scientific Name Indicator Status (a) Mix Slough sedge Carex obnupta OBL 35% Creeping spike rush Eleocharis palustris OBL 10% Persistently Wet Small-fruited bulrush Scirpus microcarpus OBL 25% Slough sedge Carex obnupta OBL 35% Soft rush Juncus effuses FACW 15% Persistently Wet Small-fruited bulrush Scirpus microcarpus OBL 25% Water plantain Alisma plantago-aquatica OBL 15% Soft rush Juncus effuses FACW 15%

Red fescue Festuca rubra var. rubra FAC 40% Water plantain Alisma plantago-aquatica OBL 15% REVISIONS Redtop Agrostis alba FACW 15% Red fescue Festuca rubra var. rubra FAC 40% Seasonally Wet Timothy Phleum pratense FACU 5% Redtop Agrostis alba FACW 15% Tufted hairgrass Deschampsia cespitosa FACW 15% Seasonally Wet Timothy Phleum pratense FACU 5% Western rye Elymus glaucus FACU- 25% Tufted hairgrass Deschampsia cespitosa FACW 15% Notes: Notes: From Table 5.5-13 and Section 5.5.8 in OSM Permit NO. WA-0001E. Application rate is recommended to be 20 lbs/acre. Western rye Elymus glaucus FACU- 25% (a) FAC: Equally likely to occur in wetlands and non-wetlands; FACU: Facultative Upland. Usually occur in non-wetlands, but occasionally found in wetlands; FACW: Facultative Wetland. Usually Notes: Notes: From Table 5.5-13 and Section 5.5.8 in OSM Permit NO. WA-0001E. Application rate is recommended to be 20 lbs/acre. found in wetlands, but occasionally found in non-wetlands; OBL: Obligate wetland. These species almost always occur under natural conditions in wetlands. (a) FAC: Equally likely to occur in wetlands and non-wetlands; FACU: Facultative Upland. Usually occur in non-wetlands, but occasionally found in wetlands; FACW: Facultative Wetland. Usually found in wetlands, but occasionally found in non-wetlands; OBL: Obligate wetland. These species almost always occur under natural conditions in wetlands. NW Davis St. Suite 317 222 www.cascadeenv.com 503.894.8585 Portland, Oregon 97209

LITTORAL: AQUATIC WETLAND

Littoral Zone - Emergent Area Reclamation ; Total Acreage: 19.73 Total Plants Habitat Type Plant Type Common Name Scientific Name Density (# / acre) (a) Spacing (ft)(a) Seedling Type Form (b) Needed Herbaceous Beaked sedge Carex utriculata 190 5” BR/P 3,749 Hardstem bulrush Scirpus acutus 180 5” P/C 3,551 Inflated sedge Carex vesicuria 190 5” P/C 3,749 Narrow-leaf burreed Sparganium emersum 180 5” P/C 3,551 Reed mannagrass Glyceria grandis 190 5” P/C 3,749 Rice cutgrass Leersia oryzoides 180 5” BR/P 3,551 Saw-beaked sedge Carex stipata 190 5” S 3,749 Palustrine Emergent Wetland Skunk cabbage Lysichiton americanum 85 5” RZ/BR/P 1,677 Slender rush Juncus tenuis 190 5” S 3,749 Slough sedge Carex obnupta 190 5” BR/P 3,749 Small-fruited bulrush Scirpus microcarpus 180 5” TU/BR/P 3,551 Soft-stemmed bulrush Scirpus validus 190 5” BR/P 3,749 Tall mannagrass Glyceria elata 190 5” RZ/BR/P 3,749 Thick-head sedge Carex pachystachya 190 5” P/C 3,749 Wapato Sagittaria latifolia 190 5” BR/P 3,749 Total Plants Per Acre 2,705 CENTRAL PACKWOOD LAKE PLANTING LEGEND Total Plants Per Zone 53,370 Notes: From Table 5.5-13 and Section 5.5.8 in OSM Permit NO. WA-0001E. (a) Based upon availability and are subject to change (b) BR = bare root; C = containerized; LS = live stake; P = plug; RZ = rhizome; S = seed; TU = tuber

July 2015 DRAWN BY: AMM DESIGNED BY: AMM/TS CHECKED BY: TS SHEET NUMBER

P4 OF 5 PROJECT NO. PRELIMINARY - NOT FOR CONSTRUCTION 00102 FOR PLANTING ON SLOPES, INSTALL FOR PLANTING ON PLANT UPRIGHT. TOP OF ROOT CROWN TO BE SLOPES, INSTALL TOP OF ROOTBALL TO BE LEVEL WITH SURROUNDING LEVEL SOIL TO PLANT UPRIGHT. LEVEL WITH SURROUNDING ENSURE COVER OF SOIL (FINISH GRADE) LEVEL SOIL TO SOIL (FINISH GRADE) ROOTS ON DOWNHILL ENSURE COVER OF SIDE OF PLANT ROOTS ON DOWNHILL EXCAVATE SOIL FOR PLANTING

SIDE OF PLANT REVISIONS AS SHOWN. SCARIFY SIDES OF FINISH GRADE EXCAVATE SOIL FOR PIT IF GLAZED. PLANT PLANTING AS SHOWN. ACCORDING TO SCARIFY SIDES IF PIT IS SPECIFICATIONS FINISH GRADE GLAZED. PLANT ACCORDING EXCAVATE SOIL 6" BEYOND TO SPECIFICATIONS ROOT DEPTH EXISTING NATIVE EXCAVATE SOIL 6" BEYOND SOIL ROOT DEPTH EXISTING NATIVE SOIL

NOTES: NOTES: 1. MAKE PLANTING HOLE LARGE ENOUGH TO ONLY ACCOMMODATE DIVISION AND ROOTS. NW Davis St. Suite 317 222 www.cascadeenv.com 503.894.8585 2. ENSURE PLANTING HOLE IS DEEP ENOUGH TO AVOID CRIMPING OF ROOTS 1. MAKE PLANTING HOLE LARGE ENOUGH TO ONLY ACCOMMODATE DIVISION AND ROOTS. Portland, Oregon 97209 3. DO NOT OVER-EXCAVATE FOR PLANTING. 2. ENSURE PLANTING HOLE IS DEEP ENOUGH TO AVOID CRIMPING OF ROOTS 4. TAMP SOIL AROUND AND OVER ROOTS WITHOUT CRUSHING OR DAMAGING PLANT OR ROOTS. 3. DO NOT OVER-EXCAVATE FOR PLANTING. 4. TAMP SOIL AROUND AND OVER ROOTS WITHOUT CRUSHING OR DAMAGING PLANT OR ROOTS. 1 BARE ROOT TREE PLANTING 2 BARE ROOT SHRUB PLANTING P05 NOT TO SCALE P05 NOT TO SCALE

TOP OF ROOT MASS TO BE LEVEL WITH FINISH GRADE

10" BAMBOO SKEWER. PUSH THROUGH ROOT CROWN TO SECURE PLANT IN PLANTING HOLE FINISH GRADE

EXISTING SOIL BACKFILL PLANTING HOLE WITH NATIVE SOIL; TAMP SOIL AROUND ROOTS PLANTING PLAN CENTRAL PACKWOOD LAKE NOTES:

1. MAKE PLANTING HOLE LARGE ENOUGH TO ONLY ACCOMMODATE DIVISION AND ROOTS. 2. ENSURE PLANTING HOLE IS DEEP ENOUGH TO AVOID CRIMPING OF ROOTS 3. DO NOT OVER-EXCAVATE FOR PLANTING. 4. TAMP SOIL AROUND AND OVER ROOTS WITHOUT CRUSHING OR DAMAGING PLANT OR ROOTS.

3 PLUG PLANTING P05 NOT TO SCALE

July 2015 DRAWN BY: AMM DESIGNED BY: AMM/TS CHECKED BY: TS SHEET NUMBER

P5 OF 5 PROJECT NO. PRELIMINARY - NOT FOR CONSTRUCTION 00102 Appendix B. Site Photographs Central Packwood Lake- Vegetation Annual Report

Photo Point 1. Photo 1: Facing towards north. Photo Point 1. Photo 2. Facing to the east

Photo Point 1. Photo 3: Facing to the south. Photo Point 1. Photo 4: Facing to the west.

1 | Page