Packwood Lake Hydroelectric Project (FERC No. P-2244) Anadromous Salmonid Habitat and Spawner Survey Report

Packwood Lake Hydroelectric Project (FERC No. P-2244) Anadromous Salmonid Habitat and Spawner Survey Report Prepared For Prepared By EES Consulting 1155 N. State Street, Suite 700 Bellingham, WA 98225

1.0 INTRODUCTION...1 1.1 Goals and Objectives...1 1.1.1 Study Goals...2 1.1.2 Study Objectives...2 1.2 Report Synthesis...3 2.0 STUDY AREA AND MEHODS...3 2.1 Study Area...3 2.2 Methodology...4 2.2.1 Upper Extent of Anadromous Salmonid Distribution...4 2.2.2 Anadromous Salmonid Surveys...4 2.3 Principal Investigators...6 3.0 RESULTS...8 3.1 Lake Creek...9 3.2 Tailrace Slough (Cowlitz River Side Channel)...15 3.3 Hall Creek...17 3.4 Snyder Creek...17 3.5 Cowlitz River Surveys...17 3.6 Packwood Powerhouse Stilling Basin Observations...18 4.0 DISCUSSION...19 5.0 ACHIEVEMENT OF GOALS AND OBJECTIVES...22 5.1 Goals...22 5.2 Objectives...22 Appendix A Appendix B Appendix C Appendix D Energy Northwest Anadromous Spawning Survey Data Maps Documenting Concentrated Areas of Spawning in Project Related Areas WDFW Spawning Survey Data for the Upper Cowlitz River Drainage WDFW Release Data Compared to Spawning Surveys Conducted by Energy Northwest i

LIST OF FIGURES 1-1 Energy Northwest s Packwood Lake Hydroelectric Project...2 2-1 Study Area for Tailrace Slough...4 3-1 Lake Creek Spawning Survey Data...9 3-2 Lake Creek Flow vs. Spawn Timing (2004/2005 Season)...10 3-3 Lake Creek Flow vs. Spawn Timing (2005/2006 Season)...12 3-4 Lower Lake Creek Spawner and Water Temperature Information (2004-2005)...13 3-5 Lower Lake Creek Spawner and Water Temperature Information (2005-2006)...14 3-6 Packwood Tailrace Slough Spawner and Water Temperature Information (2004-2005)...14 3-7 Tailrace Slough Spawners + Redds...16 LIST OF TABLES 2-1 Spawning Survey Schedule...5 3-1 Anadromous Spawning Survey Dates and Corresponding River Miles...9 3-2 Chinook and Coho Releases by WDFW (2004-2006)...10 3-3 Spawning Fish per Square Meter in Lower Lake Creek...11 3-4 Percentage Spawning Gravel Used in Lower Lake Creek...12 3-5 2004/2005 Packwood Tailrace Slough Spawning Data...15 3-6 Hall Creek 2005/2006 Coho Spawning Data...17 3-7 Packwood Stilling Basin Seining Capture Numbers...19 4-1 Upper Cowlitz River Flow Related to Peak Survey Dates...21 ii

1.0 INTRODUCTION Energy Northwest s Packwood Lake Hydroelectric Project (FERC No. P-2244), received its initial license in 1960. The majority of the Project is located in the Gifford Pinchot National Forest (Figure 1-1). The Project consists of an intake canal, a concrete drop structure (dam) and intake building on Lake Creek located about 424 feet downstream from the outlet of Packwood Lake, a 21,691-foot system of concrete pipe and tunnels, a 5,621-foot penstock, a surge tank, and powerhouse with a 26,125 kw turbine generator. The source of water for the Project, Packwood Lake, is a lake that pre-existed the Project, situated at an elevation of approximately 2,857 feet above mean sea level (MSL), about 1,800 feet above the powerhouse. Water discharged from the Project is released to the Cowlitz River via a tailrace canal. Power from the Project is delivered over an 8,009-foot 69 kv transmission line to the Packwood substation. From May 1 through September 15, Packwood Lake is maintained at its approximate natural elevation (2,857 feet MSL). During the remainder of the year, the existing FERC license allows lowering the lake level not more than eight feet below the summer lake level down to an elevation of 2,849 feet MSL. A series of dams owned by Tacoma Power and Lewis County on the Cowlitz River downstream of Packwood were installed in the mid-1900 s precluding once naturally spawning populations of anadromous salmonids from the upper Cowlitz River. Beginning in 1994, Tacoma Power, in association with the Washington Department of Fish and Wildlife (WDFW) and Bonneville Power Administration, began a program to reintroduce anadromous salmonids to the upper Cowlitz and its tributaries. Anadromous salmonids are known to spawn in both lower Lake Creek and in the slough below the tailrace (e.g., tailrace slough) where it adjoins the Cowlitz River. Spawner surveys in these two areas were initiated in 2004. This report serves as a summary of those findings for those areas, as well as other Project-related areas. 1.1 Goals and Objectives Spawning surveys conducted in 2004 of Lake Creek and the tailrace slough indicated Chinook and coho salmon spawned in both lower Lake Creek and the tailrace slough. Coho salmon spawners have been present in both areas, indicating suitable spawning habitat. Actual production potential for the entire upper Cowlitz River Basin is difficult to establish given the barriers to anadromous fish passage downstream and the relatively small number of fish being passed to the upper Cowlitz as a result. 1

Figure 1-1 Energy Northwest s Packwood Lake Hydroelectric Project is located in the Cowlitz River Watershed, Tributary to the Lower Columbia River in Southwest Washington State (source Energy Northwest 2004) 1.1.1 Study Goals The goals of this study were to: 1. Identify spawning habitat and quantify the amount of spawning by anadromous salmonids in the streams affected by project operations. 2. Determine the presence and upstream limits of anadromous salmonid distribution in Lake Creek, Snyder Creek, and Hall Creek. 3. Identify any project-related barriers to upstream migration. 1.1.2 Study Objectives The Objectives of these Spawning Surveys were to: Map concentrations of redds for each salmon species. Identify the flow that will cover the surface of the redds. Estimate the percentage of redds that will be dewatered by reductions in river flow. 2

Identify the presence of all species in the anadromous reaches of Lake, Snyder, and Hall creeks and the tailrace slough, including anadromous species, rainbow and cutthroat trout and other resident fish. Identify barriers to anadromous fish in Lake Creek and project-related barriers in Hall and Snyder Creek, if present. 1.2 Report Synthesis It is Energy Northwest s intention to prepare a report in the late Spring/early Summer of 2007 that will synthesize the findings from the various fisheries investigations into a single document. 2.0 STUDY AREA AND METHODS 2.1 Study Area The study included the following areas: Lake Creek below the anadromous barrier (see Fish Passage Barriers Study Report for a discussion of the anadromous barrier). Tailrace Slough below the poured concrete portion of the tailrace to the confluence with the Cowlitz River (both right and left channels). Snyder Creek from its confluence with Hall Creek upstream to the end of the anadromous zone. Hall Creek from 200 meters downstream of the project flume crossing to 200 meters above the project flume crossing and an index area upstream of the Snyder Creek Road. [Note: Surveys indicated that the vicinity of the flume provided passage and rearing habitat only; an index area was established upstream of Snyder Creek Road]. Cowlitz River near shore bank (left bank, looking downstream) downstream approximately 2,000 ft from the confluence of Lake Creek and approximately 2,000 ft downstream from the confluence with the tailrace slough. Examination of the habitat by EES Consulting indicates that flows from the tailrace remain along a side channel of the Cowlitz River and to the left of a split channel approximately 1,000 ft downstream of the confluence of the left channel of the tailrace slough and the Cowlitz River. Surveys continued upstream along the left bank of the Cowlitz River until the confluence of the right channel of the tailrace slough was reached (See Figure 2-1). The stilling basin was snorkeled in conjunction with spawners surveys beginning in July 2005. Any live or dead anadromous adults and associated redds observed were recorded. 3

2.2 Methodology Figure 2-1 Study Area for Tailrace Slough 2.2.1 Upper Extent of Anadromous Salmonid Distribution The upstream limits of salmonid distribution and potential Project-related barriers were documented by conducting a physical habitat survey of each stream from the mouth upstream to the first natural anadromous salmonid barrier. These surveys employed the methods described by Powers and Orsborn (1985), or fish passage determination as described in Section 5.2.2 of the Fish Passage Barriers Study Report (EES Consulting 2006). Lake Creek was further examined in April, 2004 when the entire 5.4 mile stretch of lower Lake Creek was assessed for physical habitat characteristics (EES Consulting 2005). Snorkeling surveys were conducted once per month to determine if anadromous salmonids utilized portions of Lake Creek from the chute at RM 1.03 to the falls at RM 1.95. 2.2.2 Anadromous Salmonid Surveys The portion of the Project area below any probable impassible anadromous fish barrier was surveyed from July 2004 to July 2006 by two experienced biologists. The barriers chosen by EES Consulting biologists (RM 1.03 and RM 1.95) are described in the Fish Passage Barriers Study Report (EES Consulting 2006). Based on the results of that study, the chute at RM 1.03 is considered passable for steelhead, but not for coho or Chinook; and the falls at RM 1.95 are considered to be a barrier for all species. The purpose of these surveys was to document salmon and steelhead abundance and distributions of spawners in Lake Creek, Snyder Creek, Hall Creek, 4

the tailrace slough and the Cowlitz River from downstream of the confluence with Lake Creek to downstream of the tailrace slough. Spawner surveys were conducted twice monthly using visual methods. Occasionally, a survey was not conducted due to high flow conditions and turbidity. Spawning periodicity is given below in Table 2-1 (Serl 2005). The timing of surveys were coordinated with the trap and haul program. It should be noted that adults are transported from Barrier Dam to the Skate Creek Road Bridge (Franklin Bridge) and that the fish found on the Project are not necessarily from those releases and could have migrated from Lake Scanewa (Serl 2005). Table 2-1 Spawning Survey Schedule Late Winter Month Steelhead Spring Chinook Late Coho Cutthroat January X X February X? March X X? April X May X June X July X August X September X October X November X X December X X X= Probable spawning? = Possible spawning The protocol as established in the Timber Fish and Wildlife Method Manual for the Salmon Spawning Habitat Availability Survey (1999) was used. In addition, spawner survey data collected included: Species counted; Live fish count by species; Dead fish count by species; Water and viewing conditions; Redd count; Number of adults; Date survey was conducted; and Surveyor and affiliation. Redd locations were flagged with a detailed description. Utilization of GPS was not feasible for most of the Lake Creek anadromous zone; the steep walls and heavily treed canopy bordering Lake Creek precluded the biologists from collecting GPS information due to lack of satellite coverage. Carcasses were tail-cut after sampling to eliminate double counting. Gage readings were taken on Lake Creek and in the tailrace during every spawner survey to relate flows to spawner presence. 5

Any dead anadromous salmonids found on spawning surveys were examined to determine if they had spawned or were pre-spawning mortalities, and any tags observed were also recorded. Information on water depth above redds has been taken from the instream flow studies conducted on Lake Creek and the tailrace slough. A sensitivity analysis is being conducted to evaluate impacts, if any, on redds with various flow levels. These data will be provided as part of the Lake Creek and Tailrace Slough Instream Flow study reports. Data collected during the Fish Distribution and Species Composition study are being conducted and analyzed. Data will be incorporated into the Fish Species Distribution and Composition Study report. 2.3 Principal Investigators John Blum, EES Consulting, Inc. Fisheries Biologist and Instream Flow Scientist (Project Manager) John Blum has a Master of Science in Fisheries, a Bachelor of Science in Environmental Biology and a Bachelor of Science in Business, specializing in Business Management. Mr. Blum has over 25 years experience as a fisheries biologist and consultant in instream flow analysis, habitat assessment, Endangered Species Act studies, fisheries research, enhancement, management, water resources and endangered species assessment, FERC regulatory licensing and relicensing studies, and expert witness testimony. In his role as a senior fisheries biologist and consultant, Mr. Blum has successfully managed over 50 fisheries and aquatic resources impact assessments in the Pacific and Inland Northwest, including many on the mid Columbia River. Mr. Blum has conducted numerous fisheries and instream flow studies throughout the Pacific Northwest, including the Columbia River System in Washington, Oregon, Idaho and Montana. He is extensively trained and certified in the Instream Flow Incremental Methodology (IFIM) and has been recently certified in 2-dimensional instream flow modeling. He is Principal Scientist for the Box Canyon Dam Relicensing, and was principal scientist for the Box Canyon License Amendment and Sullivan Creek License Amendment for Pend Oreille Public Utility District in Pend Oreille County, WA. He was also Project Manager for relicensing studies for Chelan County Public Utility District on the Lake Chelan and Rocky Reach Hydroelectric Projects. He has been principal investigator on fisheries inventory and instream flow studies throughout the Northwest, including in British Columbia and Alaska, and has co-authored the Historic and Current Resources of the Clark Fork River, and for fisheries investigations on the Bear River relicensing projects for PacifiCorp. He recently completed, as Aquatic Lead and Principal Scientist, fisheries investigations for PG&E s Haas Kings Hydroelectric Project in California. He is also currently working with PGE on its Clackamas River Relicensing Project, and was Principal Scientist for the aquatics portion of the Cedar Creek relicensing and Biological Assessment. 6

Mr. Blum is currently Project Manager and Principal Scientist for the Packwood Lake Hydroelectric Project, and is Principal Scientist for the Anyox and Kitsault rivers hydroelectric projects in British Columbia. Cory Warnock, EES Consulting, Inc. Fisheries Biologist and Instream Flow Scientist (Assistant Project Manager) Mr. Warnock has more than six years of experience as a fisheries biologist leading and participating in numerous fisheries studies including fish population monitoring, instream flow analysis, habitat analysis and assessment, genetic sampling, entrainment studies and habitat restoration. His duties have included project implementation, logistical and technical planning, field investigations and report writing. He has managed projects and lead crews in all aspects of various fisheries studies and instream flow investigations. Clients have ranged from owners of hydroelectric facilities and timber companies to state and federal agencies. He is adept in many aspects of field collection and analysis as related to various types of fisheries monitoring, sampling, IFIM and habitat restoration. Mr. Warnock is currently involved with the relicensing efforts by EES Consulting at Box Canyon Dam for Pend Oreille PUD and the Packwood Lake Hydroelectric Project for Energy Northwest. Both projects require extensive monitoring of the anadromous and resident species present as well as determining the quality of their habitat. Other work has included habitat mapping, fish passage and connectivity issues, anadromous barrier analysis, spawning surveys, juvenile and adult snorkeling work, genetic sampling and entrainment studies for various salmonid species at all life stages. He has played an integral role in many IFIM studies from analyzing various reaches for quality habitat and identifying potential transects to carrying out flow measurements, substrate analysis and surveying. He has participated and lead all facets of these studies from the logistics and preparation phases to the data analysis, report writing and submittal. Nic Truscott, EES Consulting Inc. Field Biologist Mr. Truscott has two years of experience as a field biologist for EES Consulting. He has participated in field aspects of instream flow studies on many drainages including the Spokane and Skagit River systems. Mr. Truscott has played an integral role in many of the fisheries and water quality investigations for Energy Northwest s relicensing efforts. Studies have included anadromous and resident salmonid spawning surveys, fish population assessments, habitat and barrier analysis and lake and stream water quality investigations. He has participated in a variety of studies in Washington and Oregon dealing with fisheries and water quality issues as they pertain to anadromous and resident salmonids. Currently, Mr. Truscott is working on a 5 year analysis of spawning Chinook salmon population in the Methow and Okanogan river basins. 7

Brian Johnson, EES Consulting, Inc. Field Biologist Mr. Brian Johnson, biologist, has a strong background in spawner surveys, snorkel and SCUBA surveys, radio-telemetry, instream flow assessment, habitat surveys, adult passage and water quality assessment. Mr. Johnson has been the field lead for spawner surveys for Energy Northwest s Packwood Lake Hydroelectric Project re-licensing, led by EES Consulting, Inc. He managed and conducted the field logistics of survey crews covering the Cowlitz River and Hall, Snyder, and Lake creeks. He is skilled at species and redd identification, and biological sample collection. Mr. Johnson has extensive fisheries field experience in north-central Washington. He took part in aquatic habitat, plants, creel, recreation, sturgeon, mollusks, salmon spawning and snorkel surveys related to operations of the Rocky Reach Dam. He conducted salmonid snorkel surveys, creel surveys, spawner surveys and redd mapping in the Stehekin River, the major tributary to Lake Chelan. He served as part of the field crew conducting instream flow and habitat suitability analyses in the Wenatchee River watershed. His experience included collection of physical habitat and hydrologic information, habitat surveys, and habitat suitability data. The work took place in the mainstem Wenatchee River, Peshastin Creek, and the Chiwawa River and tributaries including Phelps and Rock Creek. He has additional fisheries field work experience throughout Washington State, Oregon, and California over the past 15 years. 3.0 RESULTS Two years of spawner surveys were conducted from July 2004 to July 2006 on lower Lake Creek upstream to the anadromous barrier at RM 1.95 and in the tailrace slough in both channels to the confluence with the mainstem Cowlitz River. Snyder and Hall creeks, and the Cowlitz River below the confluence with Lake Creek were surveyed for over a year from April, May, and July 2005 respectively through July 2006 (Appendix A). Anadromous spawners and redds were visually confirmed on all systems except Snyder Creek. Coho and Chinook salmon and/or redds were observed in Lake Creek while coho only were seen in the tailrace slough and Hall Creek. When only redds were present, time of year and freshness of redd allowed the biologists to determine whether a specific redd was made by either a coho or Chinook salmon spawning pair. No coho spawners were observed in Snyder Creek above the tailrace; however, coho juveniles were found on Snyder Creek above the tailrace and below the culvert barrier (See Fish Passage Barriers Study Report for additional information on the barriers). No resident salmonid spawning was observed. Appendix B displays areas of concentrated spawning activity on all of the drainages surveyed. A preliminary anadromous barrier assessment was conducted to determine the upstream terminus of surveys on Hall, Snyder and Lake creeks. Table 3-1 lists the beginning and ending dates of anadromous spawning surveys on these systems and the locations at which surveys were 8

terminated by river mile (RM). Anadromous and resident fish migration barriers are discussed in greater detail in the Fish Passage Barriers Study Report. Surveys on Snyder Creek were terminated at the Forest Service road crossing (RM 0.36), due to the presence of a culvert which prevented upstream fish passage beyond this point. Creek Lower Lake Creek (Including Cowlitz River Table 3-1 Anadromous Spawning Survey Dates and Corresponding River Miles Beginning Date Ending Date Lake Creek Anadromous Spawning Surveys (2004-2006) Terminus Location (RM) 7/26/04 7/26/06 1.95 Snyder Creek 5/10/05 7/26/06 0.36 Hall Creek 4/12/05 7/26/06 3.70 Tailrace Slough (Including Cowlitz River) 3.1 Lake Creek 7/26/04 7/26/06 N/A The anadromous zone of Lake Creek was surveyed on a twice-monthly basis beginning in July 2004 and surveyed through July 2006 (Figure 3-1). Over the two year period, a total of 85 fish were seen and 56 definite redds were documented. Of the 86 fish visually identified, 83 were coho and 3 were Chinook salmon. No carcasses were observed during any of the surveys. No steelhead trout were documented during the surveys. 30.00 Coho 25.00 Fish and Redd Numbers 20.00 15.00 10.00 5.00 0.00 Chinook Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Date Figure 3-1 Lake Creek Spawning Survey Data Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Fish Observed Definite Redds Possible Redds 9

Snorkeling surveys were conducted once per month during the first five months of the spawning surveys (August 2004 November 2004), documenting the lack of anadromous species above the chute at RM 1.03. No anadromous adults or juveniles were observed during any of the subsequent snorkeling efforts for this study and the Fish Distribution and Species Composition Study. The chute at RM 1.03 has subsequently been determined to be an upstream barrier for Chinook and coho while the falls at RM 1.95 is documented as the barrier for steelhead. The Fish Passage Barriers Study Report further documents the barriers on all creeks. Peak spawning behavior for coho in Lake Creek during the two years of surveys fell between November 1 st and January 31 st. Over 90% of fish and redds were identified during this period both years. Two Chinook salmon were documented in Lake Creek on August 11, 2004 and one was observed on August 25, 2004 along with a potential redd. These were the only Chinook salmon observed in Lake Creek during the course of the surveys. It is important to note that a major component of entrance and spawn timing is related to the timing of the trap and haul program. Fish are transported from Barrier Dam to the Skate Creek Road Bridge (Franklin Bridge) and the dates of transport vary depending on return timing of fish downstream of the dam. Table 3-2 documents the WDFW s adult Chinook and coho releases in the upper Cowlitz Basin from 2004-2006. A total of 9,641 Chinook and 39,648 coho were released in the upper Cowlitz from 2004 through 2006. Appendix C displays Chinook and coho spawning survey data from WDFW assessments done in 2005 and 2006 in the upper basin. None of the areas surveyed by Energy Northwest (Lake, Hall and Snyder Creeks and the tailrace slough) were examined by WDFW during 2005 and 2006. Table 3-2 Chinook and Coho Releases by WDFW (2004-2006) Species Cispus Franklin Bridge Scanewa Day Use Totals 2004/2005 Coho 733 4657 30698 36088 2005/2006 Coho 360 643 2557 3560 2005 Chinook 619 724 5163 6506 2006 Chinook 787 1,859 489 3135 Totals 2499 7883 38907 Appendix D graphically displays coho release timing at three sites in the upper Cowlitz River basin relative to spawning activity at sites surveyed by Energy Northwest, (lower Lake Creek, Hall Creek and the tailrace side channel). During the 2004/2005 coho spawning period, a total of 36,088 coho adult salmon were released into the upper Cowlitz Basin, beginning the week of August 29, 2004 and continuing until the week of February 8, 2005. Spawning activity in the Energy Northwest survey area (lower Lake and Hall creeks and the tailrace slough), took place between the weeks of October 28, 2004 and February 8, 2005. Only 3,560 coho adults were released during the 2005/2006 season between the week of December 15, 2005 and the week of January 12, 2006 and all spawning activity in the survey area took place between the week of December 15, 2005 and March 9, 2006. A physical habitat assessment of lower Lake Creek was conducted by Energy Northwest in April, 2004. Wetted width information was utilized along with the spawning survey data collected to determine the fish per square meter of wetted habitat numbers. Table 3-3 displays 10

yearly usage data of habitat per square meter in lower Lake Creek below RM 1.03. For the two survey years combined, there were 0.01 spawners per square meter of wetted habitat. Data collected during the gravel study on lower Lake Creek was analyzed in 100 ft. stream length increments from the mouth to RM 1.03. The number of square feet of gravel in each 100 ft. reach was used to calculate the percentage of spawning gravel used in the anadromous zone of lower Lake Creek. Over the course of the two years of spawning surveys, coho used approximately 28.0% and Chinook used 2.8% of available spawning gravel (Table 3-4). Table 3-3 Spawning Fish per Square Meter in Lower Lake Creek Fish/Meter 2 2004/2005 Ft. Sq. Ft. Sq. M. Fish/ Sq. Meter Avg Width 33.00 179454.00 16671.28 Length 5438 0.003 Number of Fish 54 2005/2006 Ft. Sq. Ft. Sq. M. Fish/ Sq. Meter Avg Width 33.00 179454.00 16671.28 Length 5438 0.002 Number of Fish 32 Total Ft. Sq. Ft. Sq. M. Fish/ Sq. Meter Avg Width 33.00 179454.00 16671.0 0.005 Length 5438 Number of Fish 86 A permanent staff gage was set up prior to beginning the spawning surveys on lower Lake Creek at the Lake Creek Road Bridge. Discharge measurements were taken during spawning surveys to develop a rating curve for the gage. These data are being analyzed and will be incorporated into the Lake Creek IFIM Study Report; approximate flow values for the surveys are displayed in Figures 3-3 and 3-4. Over the course of the surveys, flow readings on survey dates ranged from 7.4 cfs to 50 cfs. The highest number of fish and redds seen during the 2004/2005 spawning surveys was during the week of January 25, 2005 at an approximate flow of 30.5 cfs. The highest number of spawners/redds seen during the 2005/2006 season was during the week of November 18, 2005 when the Lake Creek flow was approximately 29.5 cfs. 11

Ta Table 3-4ble 3-4 Percentage Spawning Gravel Used in Lower Lake Creek 2004/2005 Species Sq Ft. Sq. M. Number of Fish Mean Redd Size (sq m) Sq.M Used % Used Coho 7975 740.0 51 5 127.50 17.21 Chinook 7975 740.0 3 14 21.00 2.83 2005/2006 Species Sq Ft. Sq. M. Number of Fish Mean Redd Size (sq m) Sq.M Used % Used Coho 7975 740.0 32 5 80.00 10.80 Chinook 7975 740.0 0 14 0.00 0.00 Total Species Sq Ft. Sq. M. Number of Fish Mean Redd Size (sq m) Sq.M Used % Used Coho 7975 740.0 83 5 207.50 28.0 Chinook 7975 740.0 3 14 21.00 2.80 30.00 Lake Creek Anadromous Spawning Surveys Flow (cfs) vs. Spawning Timing (2004/2005 Season) 35 25.00 25.00 30 Fish Observed + Redds 20.00 15.00 10.00 5.00 0.00 7/26/2004 8/9/2004 Chinook Spawning 2.00 1.00 8/23/2004 9/6/2004 9/20/2004 10/4/2004 1.00 4.00 10/18/2004 11/1/2004 7.00 6.00 5.00 2.00 4.00 Coho Spawning 6.00 2.00 11/15/2004 11/29/2004 12/13/2004 6.00 2.00 12/27/2004 1/10/2005 Date 8.00 Observed Fish Observed Redds Lake Creek Flow (cfs) 1/24/2005 2/7/2005 2/21/2005 3/7/2005 3/21/2005 4/4/2005 4/18/2005 5/2/2005 Figure 3-3 Lake Creek Flow vs. Spawn Timing (2004/2005 Season) 5/16/2005 5/30/2005 25 20 15 10 5 0 Lake Creek Flow (cfs) 12

Lake Creek Anadromous Spawning Surveys Flow (cfs) vs. Spawning Timing (2005/2006 Season) Spawners Observed + Redds 18.00 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 8/11/2005 8/25/2005 Chinook Spawning 16.00 15.00 11.00 4.00 9/8/2005 9/22/2005 10/6/2005 10/20/2005 11/3/2005 11/17/2005 12/1/2005 12/15/2005 Coho Spawning 10.00 1.00 1.00 2.00 12/29/2005 1/12/2006 1/26/2006 2/9/2006 2/23/2006 Date Observed Fish Observed Redds Lake Creek Flow (cfs) Figure 3-4 Lake Creek Flow vs. Spawn Timing (2005/2006 Season) 3/9/2006 3/23/2006 4/6/2006 4/20/2006 5/4/2006 5/18/2006 6/1/2006 6/15/2006 6/29/2006 7/13/2006 54 52 50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Lake Creek Flow (cfs) A thermologger was installed at the gage site through January of 2006 and recorded Lake Creek water temperature every 15 minutes. Figures 3-5 and 3-6 plot average daily water temperature on spawning survey dates along with the total number of fish and redds seen per survey. The maximum average daily water temperature for a survey day during the period was on August 11, 2004 (13.44 o C) and the low was on December 15, 2005 (2.71 o C). The mean daily water temperature for the 2004/2005 survey during peak spawning (January 25, 2005) was 6.07 o C. The mean daily water temperature for the 2005/2006 survey date during peak spawning (November 18, 2005) was 5.83 o C. 13

Lake Creek Spawners + Redds vs. Average Daily Water Temperature (2004/2005) 30.00 16.00 Observed Spawners + Redds 25.00 20.00 15.00 10.00 5.00 0.00 7/26/2004 8/9/2004 2.00 Chinook Spawning 1.00 8/23/2004 9/6/2004 9/20/2004 10/4/2004 4.00 2.00 1.00 10/18/2004 11/1/2004 11/15/2004 Coho Spawning 6.00 4.00 7.00 6.00 6.00 5.00 2.00 11/29/2004 12/13/2004 12/27/2004 Figure 3-5 Lake Creek Spawner and Water Temperature Information (2004-2005) 2.00 1/10/2005 1/24/2005 Date 25.00 8.00 Observed Spawners Observed Redds Temperature (C) 2/7/2005 2/21/2005 3/7/2005 3/21/2005 4/4/2005 4/18/2005 5/2/2005 5/16/2005 5/30/2005 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 Temperature (C) Lake Creek Spawners + Redds vs. Average Daily Water Temperature (2005/2006) 18.00 14.00 16.00 Chinook Spawning 16.00 15.00 12.00 Observed Spawners + Redds 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 8/11/2005 8/18/2005 8/25/2005 9/1/2005 9/8/2005 9/15/2005 9/22/2005 9/29/2005 10/6/2005 10/13/2005 10/20/2005 10/27/2005 11/3/2005 Date Coho Spawning 11.00 4.00 11/10/2005 11/17/2005 11/24/2005 12/1/2005 12/8/2005 12/15/2005 12/22/2005 12/29/2005 1/5/2006 1/12/2006 Observed Redds Observed Fish Water Temperature (C) Figure 3-6 Lake Creek Spawner and Water Temperature Information (2005/2006) 1.00 10.00 8.00 2.00 1/19/2006 1/26/2006 10.00 6.00 4.00 2.00 0.00 Temperature (C) 14

3.2 Tailrace Slough (Cowlitz River Side Channel) The entire tailrace slough downstream of the mouth of the Packwood tailrace to its confluence with the mainstem Cowlitz River was surveyed twice monthly from July 26, 2004 to July 26, 2006. A total of 34 coho salmon and 57 redds were observed over the two year period. All but one of the 34 coho and all 57 definite redds were observed during the 2004/2005 season. No Chinook salmon or steelhead trout were observed over the course of the surveys. For a majority of the 2005/2006 coho salmon spawning period, the water was abnormally high and turbid, making observations of fish and redds difficult. If water clarity was deemed even remotely acceptable when the biologists were on-site twice monthly, a survey took place. During some of the surveys conducted during the Chinook and coho spawning periods, the left side channel that possesses a majority of the accessible spawning habitat was dry. The entire coho spawning period during the 2004/2005 season in the tailrace slough took place between November 11, 2004 and December 21, 2004. Table 3-5 summarizes the surveys conducted during this period. The peak number of observations occurred on December 9, 2004 when 14 fish and 45 redds were observed. No carcasses were observed during any of the surveys. It is important to note that a major component of entrance and spawn timing is related to the timing of the trap and haul program. Fish are transported from Barrier Dam to the Skate Creek Road Bridge(Franklin Bridge) and the dates of transport vary depending on return timing of fish downstream of the dam. A thermologger was in place in the tailrace slough throughout the spawning survey period. The maximum mean daily water temperature for a survey day during the period was on July 26, 2004 (18.95 o C) and the low was on January 4, 2005 (3.25 o C). The mean daily water temperature for the 2004 survey during peak spawning (December 9, 2004) was 5.38 o C. Figure 3-7 displays temperature data and spawning information during the 2004/2005 spawning period. Table 3-5 2004/2005 Packwood Tailrace Slough Spawning Data Date Fish Observed Redds Observed Mean Daily Water Temperature ( o C) 11/11/04 3 3 7.73 11/23/04 14 9 7.00 12/9/04 14 45 5.38 12/21/04 2 0 4.63 15

50 45 Tailrace Slough Spawners + Redds vs. Average Daily Water Temperature (2004/2005) 45 20.00 18.00 Observed Spawners + Redds 40 35 30 25 20 15 Chinook Spawning Coho Spawning 14 14 16.00 14.00 12.00 10.00 8.00 6.00 Temperature (C) 10 5 0 7/26/2004 8/2/2004 8/9/2004 8/16/2004 8/23/2004 8/30/2004 9/6/2004 9/13/2004 9/20/2004 9/27/2004 10/4/2004 10/11/2004 10/18/2004 10/25/2004 11/1/2004 Date 3 3 11/8/2004 11/15/2004 11/22/2004 9 11/29/2004 12/6/2004 12/13/2004 12/20/2004 Observed Fish Observed Redds Temperature (C) 2 12/27/2004 1/3/2005 1/10/2005 1/17/2005 Figure 3-7 Packwood Tailrace Slough Spawner and Water Temperature Information (2004/2005) 1/24/2005 4.00 2.00 0.00 16

3.3 Hall Creek A 400 m section of Hall Creek (200 m below and 200 m above the project flume crossing), and all of Hall Creek upstream of Snyder Road to the anadromous barrier (RM 3.70) were to be surveyed twice monthly from May 10, 2005 to July 26, 2006. Surveys indicated that the reach 200 m above the flume crossing was wide and marshy with slow velocities and no spawnable substrate. As a result, spawning surveys were shifted to the stream section upstream of Snyder Road, where substrate, velocities and channel type were suitable for salmonid spawning. The surveys were done from this point to RM 3.70, which is documented as the anadromous barrier in the Fish Passage Barriers Study Report. A total of 34 coho were observed along with 10 redds. All fish and redds were seen between December 29, 2005 and January 26, 2006. No Chinook salmon or steelhead trout were seen during the surveys; however, 3 rainbow trout were observed on April 6, 2006. No carcasses were observed during any of the surveys. Table 3-6 summarizes the coho spawning period for the 2005/2006 season. A major component of entrance and spawn timing is related to the timing of the trap and haul program. Fish are transported from Barrier Dam to the Skate Creek Road Bridge (Franklin Bridge) and the dates of transport varies depending on return timing of fish downstream of the dam. 3.4 Snyder Creek Snyder Creek from its confluence with Hall Creek, immediately below the Project tailrace, upstream to the end of the anadromous zone (RM 0.36), was surveyed twice-monthly from April 12, 2005 thru July 26, 2006 The survey ended at a culvert under a Forest Service road (see Fish Passage Barriers Study Report). No adult, anadromous salmonids nor any redds were observed during any of the surveys. Juvenile coho salmonids, however, were seen in Snyder Creek during many of the surveys, as were cutthroat trout. These observations will be addressed further in the Fish Species Distribution and Composition Study Report. 3.5 Cowlitz River Surveys Table 3-6 Hall Creek 2005/2006 Coho Spawning Data Date Spawners Observed Redds Observed 10/6/05 0 0 10/19/05 0 0 11/2/05 0 0 11/18/05 0 0 12/15/05 0 0 12/29/05 19 8 1/11/06 10 0 1/26/06 5 2 2/9/06 0 0 No pertinent salmonids or redds were observed in the 2000 ft. section of the Cowlitz River immediately downstream of Lake Creek which was surveyed in 2005 and 2006 or the portion of the Cowlitz River below the tailrace slough surveyed from July 2004 to July 2006. Surveys of 17

this area were conducted concurrent with the surveys done on lower Lake Creek and the tailrace slough. 3.6 Packwood Powerhouse Stilling Basin Observations The Packwood Powerhouse Stilling Basin was snorkeled in conjunction with spawner surveys beginning in July 2005. Any live or dead anadromous adults observed were recorded. The only anadromous salmonid observed during snorkeling efforts was a dead, spawned out coho on February 9, 2006. Multiple seining efforts took place in conjunction with Project maintenance work and other powerhouse shutdowns in 2005 and 2006. Status reports documenting numbers of fish captured and species information were submitted to the agencies. Table 3-7 displays species captured information for the three seining events that have taken place so far. 18

Table 3-7 Packwood Stilling Basin Seining Capture Numbers October 2005 Pass 1 Pass 2 Pass 3 Total Species Number Captured Number Captured Number Captured Number Captured Coho Juvenile 503 29 5 537 Cutthroat Adult 8 1 0 9 Cutthroat Juvenile 9 2 0 11 Coastal Cutthroat Adult 1 0 0 1 Steelhead Juv. 11 5 3 19 Rainbow (Ad Clip) 2 1 0 3 "Packwood Rainbow" 1 1 0 2 Mountain Whitefish 5 6 5 16 Largescale Sucker 1 0 2 3 Spring Chinook Juv. 2 0 0 2 Northern Pike Minnow 0 1 0 1 Totals 543 46 15 604 August 2006 Pass 1 Pass 2 Pass 3 Total Species Number Captured Number Captured Number Captured Number Captured Coho Juvenile 322 247 569 Chinook Juvenile 15 0 15 Chinook Adult 0 2 2 Rainbow (subadult) 1 0 1 Steelhead Juv. 6 2 8 Rainbow (adult) 3 0 3 Cutthroat 11 5 16 Mountain Whitefish 25 11 36 Largescale Sucker 10 11 21 Totals 393 278 671 October 2006 Pass 1 Pass 2 Pass 3 Totals Species Number Captured Number Captured Number Captured Number Captured Coho Juvenile 983 54 2 1039 Coho Adult 1 2 4 7 Steelhead Juv. 23 13 1 37 Mountain Whitefish 7 1 1 9 Coastal Cutthroat 5 0 0 5 Westslope Cutthroat 1 0 0 1 Sculpins 0 1 0 1 Suckers 0 0 2 2 Totals 1020 71 10 1101 4.0 DISCUSSION There are three variables that seem to provide cues to coho spawn timing in the upper Cowlitz River and subsequently into lower Lake Creek: Trap and Haul Releases at Skate Creek Road Bridge (Franklin Bridge) Fish cannot spawn in Lake Creek until passed above Barrier Dam on the mainstem Cowlitz River and access to the upper Cowlitz is obtained. The largest component of run timing upstream 19

of Barrier Dam is the timing of the trap and haul operation, which provides spawners access to the mainstem Cowlitz River above Cowlitz Falls dam (Appendix D). The two variables mentioned below (flow and temperature), are naturally driven conditions that cue fish to run and subsequently spawn in selected areas. Cowlitz River Flow During both the 2004/2005 and 2005/2006 coho spawning periods, a significant seasonal increase in flow was seen in the upper Cowlitz River in the weeks prior to spawn timing in Lake Creek, Hall Creek and the tailrace slough (Table 4-1). Precipitation records during both years show the increased flow is due to rain moving through the area (USGS Packwood Stream Gage 2004-2006). Given the relatively short window during which coho spawning occurred, flow appears to play a role during both seasons in spawn timing. Water Temperature Water temperature is widely documented to play a role in spawn timing of anadromous salmonids (Sauter 2001). Figures 3-5, 3-6 and 3-7 above show peak spawn timing in both Lake Creek and the tailrace slough during both the 2004/2005 and 2005/2006 seasons is related to falling water temperatures. Based upon the two years of data that coincide with the surveys, it appears that the preferred coho spawning water temperature falls between 4 and 7 degrees Celsius in the upper Cowlitz River Basin. Table 4-1 Upper Cowlitz River Flow Related to Peak Survey Data 2004/2005 Season 2005/2006 Season Date Mean Daily Flow (cfs) Date Mean Daily Flow (cfs) 01/15/2005 601 10/26/2005 571 01/16/2005 615 10/27/2005 500 01/17/2005 2,400 10/28/2005 501 01/18/2005 13,800 10/29/2005 519 01/19/2005 8,820 10/30/2005 521 01/20/2005 5,480 10/31/2005 2,290 01/21/2005 4,500 11/01/2005 2,770 01/22/2005 3,510 11/02/2005 2,320 01/23/2005 3,420 11/03/2005 1,980 01/24/2005 2,780 11/04/2005 1,910 01/25/2005 2,360 11/05/2005 1,870 11/06/2005 2,050 11/07/2005 1,780 11/08/2005 1,560 11/09/2005 1,370 11/10/2005 1,490 11/11/2005 1,820 11/12/2005 1,680 11/13/2005 2,050 11/14/2005 2,570 11/15/2005 2,170 11/16/2005 1,900 11/17/2005 1,770 11/18/2005 1,740 Peak Survey Day 20

5.0 ACHIEVEMENT OF GOALS AND OBJECTIVES 5.1 Goals 1. Identify spawning habitat and quantify the amount of spawning by anadromous salmonids in the streams affected by Project operations. Spawning surveys were conducted on Lake Creek, the Cowlitz River approximately 2000 ft. downstream of Lake Creek, Hall Creek, Snyder Creek, the tailrace slough, and the Cowlitz River downstream of the tailrace slough over a two year period (2004-2006). Data were collected regarding Chinook, coho and steelhead spawning (see Appendix A). Appendix B displays areas of concentrated spawning. Data collected during the gravel study on lower Lake Creek was analyzed in 100-foot stream segments from the mouth to RM 1.03 (barrier for Chinook and coho). The number of square feet of gravel in each segment was used to calculate the percentage of spawning gravel used in the anadromous zone of lower Lake Creek. Over the course of the two years of spawning surveys, coho used approximately 28% and Chinook used 2.8% of available spawning gravel (Table 3-4). 2. Determine the presence and upstream limits of anadromous salmonid distribution in Lake Creek, Snyder Creek, and Hall Creek. Presence information was gathered on all streams up to the anadromous barriers where applicable (Appendix A). Anadromous barrier information is discussed in detail in the Fish Passage Barriers Study Report. 3. Identify any project-related barriers to upstream migration. Anadromous barrier information is discussed in detail in the Fish Passage Barriers Study Report. There were no Project-related barriers to upstream migration on any of the drainages surveyed aside from the partial blockage of the Snyder Creek culvert under the tailrace. A level B and stream simulation analysis for this culvert is pending and results will be presented in the final Fish Passage Barriers Study report. 5.2 Objectives 1. Map concentrations of redds for each salmon species. All fish spawning was documented and locations noted. Gravel locations for Lake Creek are further discussed in the Gravel Transport Report. Appendix B displays areas of concentrated spawning. 2. Identify the flow that will cover the surface of the redds. 21

This issue will be addressed for both Lake Creek and the tailrace slough area in their respective IFIM Study reports. 3. Estimate the percentage of redds that will be dewatered by reductions in river flow. This issue will be addressed for both Lake Creek and the tailrace slough area in their respective IFIM Study reports. 4. Identify the presence of all species in the anadromous reaches of Lake, Snyder, and Hall creeks and the tailrace slough, including anadromous species, rainbow and cutthroat trout and other resident fish. Chinook and coho salmon were observed during this study and are documented in this report. No adult steelhead trout were observed during the surveys. Information regarding other species is in the Fish Species Distribution and Composition Report. 5. Identify barriers to anadromous fish in Lake Creek and Project-related barriers in Hall and Snyder Creek, if present. Anadromous barrier information is discussed in detail in the Fish Passage Barriers Study Report. However, there were no Project-related barriers to upstream migration on any of the drainages surveyed aside from the partial blockage of Snyder Creek culvert under the tailrace. A level B and stream simulation analysis for this culvert is pending and results will be presented in the final Fish Passage Barriers Study report. 22

REFERENCES City of Tacoma, Cowlitz Hydroelectric Project. 2000. Settlement Agreement License Article 3. August 10, 2000. EES Consulting. 2005. Final, Lake Creek Physical Habitat Assessment Survey. July 2005. EES Consulting. 2006. Draft, Fish Passage Barriers Study Report. November 2006. Energy Northwest. 2004. Packwood Lake Hydroelectric Project. FERC No. 2244. Pre- Application Document. Supplement No. 1. December 6, 2004. Shuett-Hames, D., A. Pleus and D. Smith. 1999. TFW Monitoring Program method manual for the salmonid spawning habitat availability survey. Prepared for the WA State Dept. of Natural Resources under the Timber, Fish, and Wildlife Agreement. TFW-AM9-99-007. DNR #109. November. 32 pp. http://waterdata.usgs.gov/wa/nwis/uv?cb_00060=on&cb_00065=on&cb_00045=on&format=gif _default&period=7&site_no=14226500 Northwest Power and Conservation Council. 2004a. Cowlitz Subbasin - Upper Cowlitz. Lower Columbia Salmon and Steelhead Recovery and Subbasin Plan. Volume II. Chapter 7. Prepared by Lower Columbia Fish Recovery Board. Draft. May 28, 2004. Northwest Power and Conservation Council. 2004b. Cowlitz Subbasin Upper Cowlitz. Lower Columbia Salmon and Steelhead Recovery and Subbasin Plan. Volume II, Chapter 9. Prepared by Lower Columbia Fish Recovery Board. Draft. May 28, 2004. Sauter S., McMillan J., Dunham J. 2001. Salmonid Behavior and Water Temperature. United States Environmental Protection Agency Issue Paper No. 1. Prepared as Part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project. 23

Appendix A Energy Northwest Anadromous Spawning Survey Data

Lake Creek Date Spawners Observed Species Redds Observed Water Visibility Surveyors 7/26/04 0 Coho 0 clear BJ, MT 8/11/04 0 Coho 0 clear BJ, MT 8/25/04 1 Coho 0 slightly turbid BJ 8/29/04 0 Coho 0 clear BJ, MT 9/16/04 0 Coho 0 clear BJ, JW 9/28/04 0 Coho 0 clear BJ, JW 10/16/04 0 Coho 0 clear BJ, JW 10/28/04 4 Coho 2 clear BJ, JW 10/28/04 0 Coho 1 clear BJ, JW 11/11/04 6 Coho 4 clear BJ, JW 11/23/04 7 Coho 5 clear BJ, JW 12/9/04 2 Coho 6 slightly turbid BJ, JB 12/21/04 6 Coho 2 clear BJ, JW 1/4/05 0 Coho 0 clear BJ 1/25/05 25 Coho 8 clear BJ 2/8/05 0 Coho 0 clear BJ 2/22/05 0 Coho 0 clear BJ 3/10/05 0 Coho 0 clear BJ, JW 3/24/05 0 Coho 0 clear BJ, JW 4/12/05 0 Coho 0 clear BJ 4/28/05 0 Coho 0 clear BJ, JB 5/10/05 0 Coho 0 slightly turbid BJ, JW 5/25/05 0 Coho 0 clear BJ 6/7/05 0 Coho 0 clear BJ 6/22/05 0 Coho 0 clear BJ, JB 7/5/05 0 Coho 0 clear BJ, JB 8/11/05 0 Coho 0 clear BJ 8/25/05 0 Coho 0 clear BJ 9/5/05 0 Coho 0 clear BJ 9/8/05 0 Coho 0 clear BJ 9/22/05 0 Coho 0 clear BJ, BP, NT 10/7/05 0 Coho 0 clear BJ, NT 10/20/05 0 Coho 0 clear BJ, NT 11/3/05 0 Coho 0 clear BJ, NT 11/18/05 16 Coho 15 clear BJ, NT 12/1/05 4 Coho 11 clear BJ, NT 12/15/05 1 Coho 0 clear BJ, NT 1/26/06 10 Coho 2 slightly turbid BJ, NT 2/9/06 0 Coho 0 clear BJ, NT 2/23/06 1 Coho 0 clear BJ, NT 3/9/06 0 Coho 0 clear BJ, NT 4/6/06 0 Coho 0 clear BJ, NT 4/20/06 0 Coho 0 clear BJ, NT 5/4/06 0 Coho 0 clear BJ, NT 6/1/06 0 Coho 0 clear BJ, NT 6/15/06 0 Coho 0 clear BJ, NT 6/28/06 0 Coho 0 clear BJ, NT 7/13/06 0 Coho 0 clear BJ, NT 7/26/06 0 Coho 0 clear BJ Total 83 Total 56 Total BJ = Brian Johnson, MT = Mike Thompson, JW = Jeromy Waddell, JB = John Blum, BP = Brian Peck, NT = Nic Truscott A-1

Cowlitz River (below confluence with Lake Creek) Date Spawners Observed Species Redds Observed Water Visibility Surveyors 7/26/04 0 0 clear BJ, MT 8/11/04 0 0 clear BJ, MT 8/25/04 0 0 slightly turbid BJ 8/29/04 0 0 slightly turbid BJ, MT 9/16/04 0 0 slightly turbid BJ, JW 9/28/04 0 0 clear BJ, JW 10/16/04 0 0 clear BJ, JW 10/28/04 0 0 clear BJ, JW 10/28/04 0 0 clear BJ, JW 11/11/04 0 0 clear BJ, JW 11/23/04 0 0 clear BJ, JW 12/9/04 0 0 slightly turbid BJ, JB 12/21/04 0 0 slightly turbid BJ, JW 1/4/05 0 0 clear BJ 1/25/05 0 0 slightly turbid BJ 2/8/05 0 0 slightly turbid BJ 2/22/05 0 0 slightly turbid BJ 3/10/05 0 0 clear BJ, JW 3/24/05 0 0 clear BJ, JW 4/12/05 0 0 clear BJ 4/28/05 0 0 clear BJ, JB 5/10/05 0 0 slightly turbid BJ, JW 5/25/05 0 0 very turbid BJ 6/7/05 0 0 very turbid BJ 6/22/05 0 0 slightly turbid BJ, JB 7/5/05 0 0 clear BJ, JB 8/11/05 0 0 clear BJ 8/25/05 0 0 clear BJ 9/5/05 0 0 clear BJ 9/8/05 0 0 clear BJ 9/22/05 0 0 clear BJ, BP, NT 10/7/05 0 0 clear BJ, NT 10/20/05 0 0 clear BJ, NT 11/3/05 0 0 clear BJ, NT 11/18/05 0 0 clear BJ, NT 12/1/05 0 0 slightly turbid BJ, NT 12/15/05 0 0 very turbid BJ, NT 1/26/06 0 0 slightly turbid BJ, NT 2/9/06 0 0 clear BJ, NT 2/23/06 0 0 clear BJ, NT 3/9/06 0 0 clear BJ, NT 4/6/06 0 0 clear BJ, NT 4/20/06 0 0 slightly turbid BJ, NT 5/4/06 0 0 slightly turbid BJ, NT 6/1/06 0 0 clear BJ, NT 6/15/06 0 0 clear BJ, NT 6/28/06 0 0 clear BJ, NT 7/13/06 0 0 clear BJ, NT 7/26/06 0 0 clear BJ Total 0 Total 0 BJ = Brian Johnson, MT = Mike Thompson, JW = Jeromy Waddell, JB = John Blum, BP = Brian Peck, NT = Nic Truscott A-2

Tailrace Slough and Cowlitz Side Channel Date Spawners Observed Species Redds Observed Water Visibility Surveyors 7/26/04 0 Coho 0 clear BJ, MT 8/25/04 0 Coho 0 clear BJ 9/16/04 0 Coho 0 clear BJ, JW 9/28/04 0 Coho 0 slightly turbid BJ, JW 10/28/04 0 Coho 0 clear BJ, JW 11/11/04 3 Coho 3 slightly turbid BJ, JW 11/23/04 14 Coho 9 slightly turbid BJ, JW 12/9/04 14 Coho 45 very turbid BJ 12/21/04 2 Coho 0 clear BJ 1/4/05 0 Coho 0 very turbid BJ 1/25/05 0 Coho 0 clear BJ 2/8/05 0 Coho 0 slightly turbid BJ 2/22/05 0 Coho 0 slightly turbid BJ 3/10/05 0 Coho 0 slightly turbid BJ, JW 3/24/05 0 Coho 0 clear BJ 4/12/05 0 Coho 0 clear BJ, NT 5/10/05 0 Coho 0 clear BJ, JW 5/25/05 0 Coho 0 slightly turbid BJ 6/7/05 0 Coho 0 slightly turbid BJ 8/11/05 0 Coho 0 slightly turbid BJ 9/8/05 0 Coho 0 clear BJ 9/22/05 0 Coho 0 clear BJ, BP, NT 10/7/05 0 Coho 0 clear BJ, NT 10/19/05 0 Coho 0 clear BJ, NT 11/2/05 0 Coho 0 clear BJ, NT 11/18/05 0 Coho 0 clear BJ, NT 12/1/05 0 Coho 0 slightly turbid BJ, NT 12/15/05 1 Coho 0 very turbid BJ, NT 2/9/06 0 Coho 0 slightly turbid BJ, NT 2/23/06 0 Coho 0 clear BJ, NT 3/9/06 0 Coho 0 clear BJ, NT 4/6/06 0 Coho 0 clear BJ, NT 4/20/06 0 Coho 0 clear BJ, NT 5/4/06 0 Coho 0 slightly turbid BJ, NT 6/1/06 0 Coho 0 slightly turbid CW, NT 6/28/06 0 Coho 0 clear BJ, NT 7/26/06 0 Coho 0 clear BJ Total 34 Total 57 BJ = Brian Johnson, MT = Mike Thompson, JW = Jeromy Waddell, JB = John Blum, BP = Brian Peck, NT = Nic Truscott A-3

Hall Creek Date Spawners Observed Species Redds Observed Water Visibility Surveyors 5/10/05 0 Coho 0 clear BJ, JW 5/25/05 0 Coho 0 clear BJ 6/7/05 0 Coho 0 clear BJ 8/11/05 0 Coho 0 clear BJ 8/25/05 0 Coho 0 clear BJ 9/8/05 0 Coho 0 clear BJ 9/22/05 0 Coho 0 clear BJ, BP, NT 10/6/05 0 Coho 0 clear BJ, NT 10/19/05 0 Coho 0 clear BJ, NT 11/2/05 0 Coho 0 clear BJ, NT 11/18/05 0 Coho 0 clear BJ, NT 12/15/05 0 Coho 0 clear BJ, NT 12/29/05 19 Coho 8 clear BJ, NT 1/11/06 10 Coho 0 clear BJ, NT 1/26/06 5 Coho 2 clear BJ, NT 2/9/06 0 Coho 0 clear BJ, NT 3/9/06 0 Coho 0 clear BJ, NT 4/6/06 0 Coho 0 clear BJ, NT 4/20/06 0 Coho 0 clear BJ, NT 5/4/06 0 Coho 0 clear BJ, NT 6/1/06 0 Coho 0 clear BJ, NT 6/15/06 0 Coho 0 clear BJ, NT 6/28/06 0 Coho 0 clear BJ, NT 7/26/06 0 Coho 0 clear BJ Total 34 Total 10 BJ = Brian Johnson, MT = Mike Thompson, JW = Jeromy Waddell, JB = John Blum, BP = Brian Peck, NT = Nic Truscott A-4

Snyder Creek Date Spawners Observed Species Redds Observed Water Visibility Surveyors 4/12/05 0 0 clear BJ 5/10/05 0 0 clear BJ, JW 5/25/05 0 0 clear BJ 6/7/05 0 0 clear BJ 8/11/05 0 0 clear BJ 8/25/05 0 0 clear BJ 9/8/05 0 0 clear BJ 9/22/05 0 0 clear BJ, BP, NT 10/6/05 0 0 clear BJ, NT 10/19/05 0 0 clear BJ, NT 11/2/05 0 0 clear BJ, NT 11/18/05 0 0 clear BJ, NT 12/29/05 0 0 clear BJ, NT 1/11/06 0 0 clear BJ, NT 1/26/06 0 0 clear BJ, NT 2/9/06 0 0 clear BJ, NT 2/23/06 0 0 clear BJ, NT 3/9/06 0 0 clear BJ, NT 4/6/06 0 0 clear BJ, NT 4/20/06 0 0 clear BJ, NT 5/4/06 0 0 clear BJ, NT 6/1/06 0 0 clear BJ, NT 6/15/06 0 0 clear BJ, NT 6/28/06 0 0 clear BJ, NT 7/26/06 0 0 clear BJ Total 0 Total 0 BJ = Brian Johnson, MT = Mike Thompson, JW = Jeromy Waddell, JB = John Blum, BP = Brian Peck, NT = Nic Truscott A-5

Appendix B Maps Documenting Concentrated Areas of Spawning in Project Related Areas

Lake Creek and Associated Cowlitz River Concentrated Spawning Areas Cowlitz Survey Area All 85 Fish and 56 Redds Observed in this Area Area Snorkeled B-1

Hall Creek, Snyder Creek, Tailrace and Associated Cowlitz River Concentrated Spawning Areas 34 Fish and 10 Redds 34 Fish and 57 Redds B-2