2009 Rocky Reach and Rocky Island Fish Passage Plan, Article 402, 03

March 30, 2009

To: Bryan Nordlund National Marine Fisheries Service 510 Desmond Drive SE, Suite 103 Lacey, WA 98503

Dear Mr. Nordlund,

Public Utility District No.1 of Chelan County (Chelan) respectfully submits this final 2009 Fish Passage Plan (FPP). The section pertaining to the Rocky Reach Hydroelectric Project, FERC No. 2145, is submitted in accordance with License Article No. 408 of the Federal Energy Regulatory Commission (FERC) Order, issued April 12, 2002, amending the license for the Rocky Reach project authorizing the installation of a permanent juvenile fish bypass system.

On February 19, 2009, FERC issued a new 43-year operating license for the Rocky Reach Project. Article 402 of the new license requires that …. “Within six months of the issuance date of license and by February 15 each year thereafter, the licensee shall file for Commission approval an operations plan.” The purpose of the new annual Rocky Reach operations plan, we believe, will be to supplant the former FPP, requiring all of the current reporting contents of that plan, but may also require additional information on fisheries and water-quality-related criteria and protocols.

Please contact me with any questions or concerns that you might have.

Respectfully yours,

Barry G. Keesee Fisheries Studies Coordinator (509) 661-4763

Rocky Reach and Rock Island Fish Passage Plan

2009 Final

Prepared by Thaddeus R. Mosey Steve L. Hemstrom Barry G. Keesee

Fish and Wildlife Department Public Utility District No. 1 of Chelan County Wenatchee, WA 98801

March 31, 2009

Table of Contents

Introduction………………………………………………………………………. 1

Overview…………………………………………………………………… 1 Emergency Deviations from the Fish Passage Plan (FPP)………………… 1 Spill…………………………………………………………………………. 1 Total Dissolved Gas (TDG) Monitoring…………………………………… 2 System Load Shaping………………………………………………………. 2 Project Fish Passage Facilities Inspection and Reporting Criteria………….. 2 Implementation of the FPP…………………………………………………. 2

Rocky Reach Dam, FERC No. 2145………………………………………… 3

1. Fish Passage Information……………………………………………... 3 1.1 Juvenile Fish Passage…………………………………………… 3 1.1.1 Facilities Description……………………………………… 3 1.1.2 Juvenile Fish Migration Timing…………………………… 6 1.2 Adult Fish Passage………………………………………………… 6 1.2.1 Facilities Description……………………………………… 6 1.2.2 Adult Fish Migration Timing……………………………… 7

2. Project Operations……………………………………………………. 7 2.1 Juvenile Fish Passage……………………………………….…… 7 2.1.1 Juvenile Fish Bypass System……………………………… 7 2.1.2 Powerhouse Flow Distribution……………………………. 8 2.1.3 Spill Management…………………………………………. 8 2.1.4 Predator Control Measures………………………………... 9 2.2 Adult Fish Passage………………………………………………. 11 2.2.1 Adult Fish Passage Facilities……………………………… 11 2.2.2 Powerhouse Flow Distribution……………………………. 12 2.2.3 Spill Management…………………………………………. 13 2.2.4 Inspection and Reporting………………………………….. 13 2.2.5 Fish Counting……………………………………………… 13 2.3 Total Dissolved Gas Monitoring and Control…………………… 13

3. Facilities Maintenance………………………………………………… 13 3.1 Juvenile Fish Passage Facilities…………………………………. 13 3.1.1 Scheduled Maintenance……………………………………. 13 3.1.2 Unscheduled Maintenance…………………………………. 13 3.2 Adult Fish Passage Facilities…………………………………….. 14 3.2.1 Scheduled Maintenance……………………………………. 14 3.2.2 Unscheduled Maintenance…………………………………. 15

4. Turbine Unit Operation and Maintenance…………………………….. 15

5. Dewatering……………………………………………………………. 16 5.1 Juvenile Fish Facilities…………………………………………... 16 5.2 Adult Fish Facilities……………………………………………... 16

Rock Island Dam, FERC No. 943……………………………………………. 17

1. Fish Passage Information……………………………………………….. 17 1.1 Juvenile Fish Passage…………………………………………… 17 1.1.1 Facilities Description……………………………………… 17 1.1.2 Juvenile Fish Migration Timing…………………………… 20 1.2 Adult Fish Passage………………………………………………. 20 1.2.1 Facilities Description……………………………………… 20 1.2.2 Adult Fish Migration Timing……………………………… 21

2. Project Operations……………………………………………………. 21 2.1 Juvenile Fish Passage……………………………………….…… 21 2.1.1 Spill Management………….……………………………… 21 2.1.2 Second Powerhouse Bypass System………………………. 22 2.1.3 Smolt Sampling Facility...…………………………………. 22 2.1.4 Powerhouse Flow Distribution...…………………………... 23 2.1.5 Predator Control Measures………………………………... 23 2.2 Adult Fish Passage………………………………………………. 23 2.2.1 Adult Fish Passage Facilities……………………………… 23 2.2.2 Spill Management…………………………………………. 27 2.2.3 Inspection and Reporting………………………………….. 27 2.2.4 Fish Counting……………………………………………… 27 2.3 Total Dissolved Gas Monitoring and Control…………………… 29 2.3.1 Physical Monitoring………………………………………... 29 2.3.2 Biological Monitoring……………………………………… 29

3. Facilities Maintenance………………………………………………… 29 3.1 Juvenile Fish Facilities…………………………………………… 29 3.1.1 Scheduled Maintenance……………………………………. 29 3.1.2 Unscheduled Maintenance…………………………………. 29 3.2 Adult Fish Facilities……………………………………………... 30 3.2.1 Scheduled Maintenance……………………………………. 30 3.2.2 Unscheduled Maintenance…………………………………. 31

4. Turbine Unit Operation and Maintenance…………………………….. 31

5. Dewatering……………………………………………………………. 31 5.1 Juvenile Fish Facilities…………………………………………... 31 5.2 Adult Fish Facilities……………………………………………... 31

References…………………………………………………………………………… 32

List of Tables

Table RR-1. Dates of Project Operations for Fisheries Purposes at Rocky Reach Dam………………………………………………………………….. 5

Table RR-2. Mean Historical Juvenile Fish Run-Timing at Rocky Reach Dam…… 6

Table RR-3. Primary Adult Salmonid Passage Periods by Species at Rocky Reach Dam………………………………………………………………………….. 7

Table RR-4. Rocky Reach Spill Levels in 2009…………………………………….. 9

Table RR-5. Spilling Schedule for Rocky Reach Dam…………………………….... 10

Table RI-1. Dates of Project Operations for Fisheries Purposes at Rock Island Dam. 19

Table RI-2. Mean Historical Juvenile Fish Run-timing at Rock Island Dam……….. 20

Table RI-3. Primary Adult Salmonid Passage Periods by Species at Rock Island Dam………………………………………………………………………….. 21

Table RI-4. Proposed Rock Island Spill Pattern in 2009…………………………….. 21

Table RI-5. Rock Island Adult Spill Criteria for Spill of 40 kcfs or Less…….……... 28

List of Figures

Figure RR-1. Site Plan of Rocky Reach Dam………………………………………... 4

Figure RI-1. Site Plan of Rock Island Dam…………………………………………... 18

iii

List of Appendices

Appendix I. Operation and Maintenance Instructions for the Rocky Reach Juvenile Fish Bypass System (In Prep.).

Appendix II. Chelan PUD Monitoring Plan for Total Dissolved Gas at Rocky Reach and Rock Island Dams in 2009 (In Prep.).

Appendix III. 2009 Fish Spill Plan for Rocky Reach and Rock Island Dams (In Prep.).

Appendix IV. Annual Maintenance Lists for Rocky Reach and Rock Island Fishways.

Introduction

Overview: Public Utility District No.1 of Chelan County (Chelan) owns and operates the Rocky Reach and Rock Island hydroelectric projects. The operations of both projects with regards to fish passage are guided by the terms and conditions of the Anadromous Fish Agreements and Habitat Conservation Plans (HCP) specific to each dam. These agreements have been entered into by Chelan with the United States Fish and Wildlife Service (USFWS), the National Marine Fisheries Service (NMFS), the Washington Department of Fish and Wildlife (WDFW), the Yakama Indian Nation (YN), and the Confederated Tribes of the Colville Reservation (Colville). The HCP describes the year round project operations necessary to protect Endangered Species Act (ESA)-listed Upper Columbia River steelhead (Oncorhynchus mykiss) and Upper Columbia spring chinook (O. tshawytscha) as well as non-listed late-run (summer/fall) chinook salmon (O. tshawytscha), sockeye salmon (O. nerka), and coho salmon (O. kisutch). An HCP Coordinating Committee, consisting of one member from each of the signed parties, oversees the implementation of the HCP. The Coordinating Committee will be used as the primary means of consultation between Chelan and the other parties in connection with the conduct of studies and the implementation of measures set forth in the HCP. The Rocky Reach portion of this Fish Passage Plan (FPP) is submitted in accordance with License Article No. 408 of the Federal Energy Regulatory Commission’s (FERC) order which amends the license for the Rocky Reach project (April 12, 2002) and authorizes the installation of the permanent juvenile fish bypass system. This FPP provides details of operations and procedures necessary to safely pass fish through the Rocky Reach and Rock Island hydroelectric facilities to meet the standards agreed upon in the HCP. Information on Rock Island is not required, but we add it for informational purposes.

The FPP will be revised as necessary by Chelan to incorporate changes to project operations and maintenance as a result of new facilities, changes in operational procedures, or information gained from evaluations. Revisions will incorporate changes adopted through coordination with FERC and NMFS through the Biological Opinion as part of the ESA’s Section 7 consultation, or Section 10 permit processes. Additional changes may also be made through agreement of the HCP Coordinating Committee.

Emergency Deviations from the Fish Passage Plan (FPP): Operational emergencies may occur which could require projects to deviate temporarily from the FPP. To the extent possible, these deviations will be conducted to minimize impacts to fish and will be coordinated with the HCP Coordinating Committee. Normally, coordination occurs prior to an action. However, if an emergency situation requires immediate attention, coordination will occur as soon as possible after the action.

Spill: Both Rock Island and Rocky Reach dams normally provide spill for juvenile salmonid passage to cover 95% of the run at each of the projects in accordance with the criteria set forth in the HCP. Spill levels and durations are specific to each dam, and are correlated with Operational goals for meeting the HCP juvenile survival

1 standards and the specific passage studies designed to measure attainment. Provisions for the spill programs are listed in the HCP for each project.

Total Dissolved Gas (TDG) Monitoring: The water quality standard and criterion developed by the Washington Department of Ecology (DOE) is 110% of saturation at ambient temperature and pressure. Chelan plans on operating the projects to meet state standards in as much as it is physically possible. Deviations from this could occur when hydraulic capacities are exceeded or to implement spill for fish passage. The 2006 revisions to the water quality standards establish a special fish passage exemption for the Snake and Columbia rivers to aid in fish passage over hydroelectric dams when consistent with a department approved gas abatement plan. Per the exemption, TDG must not exceed an average of 115% as measured in the forebays of the next downstream dams and must not exceed an average of 120% as measured in the tailraces of the each dam. These averages are measured as an average of the twelve highest consecutive hourly readings in any one day, relative to atmospheric pressure. Additionally, a maximum TDG one hour average of 125% must not be exceeded during spill for fish passage. TDG saturation levels are monitored in the forebay and tailrace of each project. When TDG levels exceed the standards, the appropriate agency representative is notified.

System Load Shaping: The Rocky Reach Project is a participant in the Mid- Columbia Hourly Coordination Agreement (Hourly Coordination). Hourly Coordination operates the seven dams from Grand Coulee through the Priest Rapids Dam to meet system load requests while minimizing the reductions in head that could result if the projects independently used active storage in their reservoirs to meet individual loads. Efficient load following is accomplished by matching load requests to the movement of water released from Grand Coulee as it passes sequentially through the downstream projects, while maintaining the forebays of these projects as near full as possible. Limitations to operations flexibility at any of the projects with active storage result in greater fluctuations in discharge and forebay elevation at the remaining coordinated projects. The Rock Island Project has very little active storage capability and therefore is rarely used in Hourly Coordination to shape system loads.

Project Fish Passage Facilities Inspection and Reporting Criteria: Both Chelan PUD and WDFW personnel inspect Rock Island and Rocky Reach fishways. The results of the inspections are reported daily by Chelan PUD personnel and monthly by WDFW personnel. Chelan PUD also communicates out of compliance incidences or other system outages with the HCP Coordinating Committee. Major issues or outages will be communicated with the HCP Coordinating Committee as soon as possible to discuss recommendations. Minor deviations will be communicated at the regularly scheduled meetings. More detailed information on inspection and reporting can be found in Section 2 for each of the Rocky Reach and Rock Island projects.

Implementation of the FPP: Chelan's implementation of the FPP requires information from and coordination with NMFS, FERC, and the HCP Coordinating Committee. Chelan coordinates operation of the projects with the HCP Coordinating Committee.

Rocky Reach Dam, FERC No. 2145

1. Fish Passage Information. The locations of the fish passage facilities are shown on the general site plan for Rocky Reach Dam (Figure RR-1). Dates for project operations for fish purposes and special operations are listed in Table RR-1.

1.1 Juvenile Fish Passage

1.1.1 Facilities Description. The juvenile fish passage facilities at Rocky Reach Dam consist of three parts: an intake screen system (ISS), a surface collector (SC), and a bypass conduit (BC) which includes a juvenile fish sampling facility (JSF).

Intake Screen System: The ISS extends from the turbine intakes, up the gatewell slots, and into the gatewells of turbine units 1 and 2. The ISS consists of diversion and vertical barrier (VBS) screens and 12 weir boxes (two boxes per intake slot, three slots per unit, and two units). The fish are guided by diversion screens in each intake, are routed up the gate well slot along the VBS, and then pass over slide gates into the weir boxes. At normal forebay elevation (707 ft), a total of 10 cfs flows through each weir box. Flow from each of these weir boxes is directed into the gatewell collection piping and routed to the BC which consists of a combination of flumes and large diameter pipes.

Surface Collection System: The SC is located in the forebay of the Rocky Reach powerhouse adjacent to the forebay wall, service bay, and turbine units 1, 2, and 3. The SC structure comprises three major sub-parts: the entrance, the de-watering structure, and the pump station. Trash racks, trash handling system and screen cleaners are provided to facilitate management of debris. The migrating fish pass over two SC control gates and are delivered to the BC by way of the surface collector weir box.

Bypass Conduit: The BC is a combination of flumes and large diameter pipes and is designed to collect 240 cfs from the SC and 120 cfs from the ISS. Transport pipes from the SC and IS penetrate the forebay wall at two separate locations and merge at a junction just south of the ISS pipe’s exit from the forebay wall. The BC is 4,600 feet long and

Figure RR-1. Site Plan of Rocky Reach Dam

Left Powerhouse Fishway Entrance Bypass Conduit

Adult Fishway Surface Exit Collector Entrance

Middle Spillway Fishway Entrance Right Powerhouse Fishway Entrance

Juvenile Bypass Outfall

4 ranges from 90 to 108 inches in diameter. The BC originates south of the forebay wall and service bay and proceeds north along the tailrace deck. The BC then curves to the east across the center dam area and continues along the spillway to the Eastbank area. As soon as the BC reaches the east bank, it curves to the south and runs along the top of the bank, until it finally swings to the southwest for its last 500 feet. The BC terminates with an outfall structure. The velocity at the outfall terminus is 26 fps with impact velocities ranging from 40 to 48 fps depending on the tailrace elevation.

Table RR-1. Dates of Project Operations for Fisheries Purposes at Rocky Reach Dam. Project Name Start End Date Date

April 1 August 31 Juvenile Fish Bypass Operation

Mid-April Early June Fish Passage Efficiency Study Juvenile Fish Survival Study Mid-April Early June Juvenile Fish Bypass Evaluation (Species composition, April 1 August 31 fish condition evaluation) Juvenile Fish Bypass Maintenance Sept. 1 March 31

Spring Fish Spill* TBD TBD (sockeye only) Summer Fish Spill* June August (subyearling chinook) Dissolved Gas Monitoring April 1 August 31

Avian Control April 15 Mid-July

Pikeminnow Control Jan. 15 Nov. 31

Adult Fishway Operation** March 1 Dec. 31

Adult Fish Counting April 15 Nov. 15

Adult Fishway Maintenance** Jan. 2 March 1

*Actual dates may vary according to in-season run-timing for each species. **Months of fishway operation and maintenance may vary according to scope of maintenance work for a given year.

Juvenile Fish Sampling Facility: The JSF is comprised of a sampling screen, sampling flume, adult fish separator and return pipe, juvenile flume, raceway, and support building. The sampling screen is designed to be deployed into and retracted from the BC by large hydraulic cylinders. When deployed, the sampling screen will divert 20 to 25 cfs from the BC flow; this flow is then dewatered to 4 cfs. Adult fish are separated automatically from the juvenile fish. Adults are returned to the BC by means of the adult return pipe;

5 juvenile fish fall between the bars of a separator and are delivered to the raceway by way of a juvenile flume. Juvenile fish are processed at the support building and returned to the BC or transported to other sites if needed for studies.

1.1.2 Juvenile Fish Migration Timing. Table RR-2 summarizes juvenile run- timing at Rocky Reach Dam from 1997-2005. The index sampling period in 2009 will be the same as what occurred from 2004 through 2008 (see Appendix III). Index counts will also be used to determine when to start and stop fish spill. The HCP Coordinating Committee will determine the need for additional protocols to establish run-timing.

Table RR-2. Mean Historical Juvenile Fish Run-timing at Rocky Reach Dam, (Columbia Basin Research DART website).

Passage Dates Species First 5% 10% 50% 90% 95% Last

CH-1 4/01 4/16 4/24 5/21 6/03 6/05 7/28

STHD 4/11 4/28 4/30 5/15 5/27 5/28 7/31

SOCK 4/3 5/8 5/8 5/11 5/27 5/28 7/16

CH-0 6/3 7/5 7/6 7/29 8/6 8/9 9/7

1.2 Adult Fish Passage

1.2.1 Facilities Description. The adult fish passage facilities at Rocky Reach Dam consist of a fishway with the right (RPE) and left (LPE) powerhouse entrances, powerhouse collection and transportation channels, a spillway tunnel channel, a main spillway entrance (MSE), and a fish ladder. The LPE is located at mid-dam between the powerhouse and spillway. The RPE is located on the south end of the powerhouse. The fishway includes a counting station on the right bank. The system includes a pumped attraction water supply and a gravity auxiliary water supply.

1.2.2 Adult Fish Migration Timing. For operation and maintenance purposes the primary fish passage season is considered to be April through November (CPUD unpublished data). Primary passage periods by species are included in Table RR-3.

Table RR-3. Primary Adult Salmonid Passage Periods by Species at Rocky Reach Dam. Spring Chinook* Mid-April to mid-late June

Summer Chinook* Mid-late June to early September

Fall Chinook* Early September to November

Steelhead April to March

Coho September to November

Sockeye Late June to mid-August *For accounting purposes and based on historical run timing, the spring chinook run occurs from April 15 to June 23, summer chinook from June 24 to Sept. 1, and fall chinook from Sept. 2 to Nov. 15.

2. Project Operations

2.1 Juvenile Fish Passage

2.1.1 Juvenile Fish Bypass System

Operation Schedule: The Rocky Reach Juvenile Fish Bypass (RRJFB) will run continuously from April 1 to August 31. Operations outside these dates can occur if it is deemed necessary to encompass 95% of the fish run based on discussion with the HCP Coordinating Committee.

Operation Procedures: The RRJFB has been designed to provide fish guidance and bypass for river flows from 0 to 425 kcfs over forebay elevations ranging from 703 to 708.5 feet (FERC operating limit) and over tailwater elevations ranging from 612 to 636 feet. The SC is operated to maintain a constant velocity of 2.65 feet per second at the entrance. At a normal forebay elevation of 707 feet, approximately 6,000 cfs is drawn into the entrance. After flowing through two dewatering channels, the 6,000 cfs is dewatered down to a bypass flow of 240 cfs at normal forebay elevation. A series of 36 screen cleaners sequentially remove debris from the SC dewatering screens. These cleaners can be controlled locally or with the Master PLC. The diversion and vertical barrier screens in turbine units 1 and 2 will be cleaned routinely with a mobile intake screen cleaner. Cleaning will occur frequently enough to maintain the proper differential across the VBS and to prevent descale/injury of migrating juvenile fish. Debris buildup will be monitored with a camera mounted to the screen cleaner; this monitoring will enable the cleaning schedule to be adjusted based on the debris load in the river. Slide gate settings (associated with weir boxes in the ISS) are controlled automatically using

7 information obtained by look-down level transducers located in the forebay and tailrace. Contingencies are in place to manually operate any of the automatic systems, if the need arises. For more detailed information regarding the operation and maintenance of the RRJFB, please refer to Appendix I (Compact Disc), Operation and Maintenance Instructions (OMI) for Rocky Reach Juvenile Fish Bypass. The OMI will include trash removal procedures, head differential limits on de-watering screens, regulating weir gate settings, gate well collection system weir settings, alarms and other procedures.

2.1.2 Powerhouse Flow Distribution. During the juvenile fish migration season, Chelan will prioritize the dispatch of generating units to achieve peak plant operating efficiency as follows 1,2,3,5,4,6,7,8,9,10,11. During juvenile fish passage season (April 1 – August 31) turbine units 1 and 2 will operate at a soft-limit of 12 to 12.5 kcfs. A juvenile sockeye survival study will be conducted in May 2009 that will evaluate predation effects on juvenile sockeye passing Rocky Reach in daytime and night time hours. Turbine units for the 24 day test will be dispatched and operated in the best- efficiency mode during the study.

Overview of Powerhouse Study Design: Chelan PUD is proposing to conduct this study in May for a 24-day period without designated fish spill at Rocky Reach. The Juvenile Fish Bypass system will operate full time during the study. Information on route-specific passage efficiency and survival will be collected during both day and night treatment conditions.

2.1.3 Spill Management. The 2009 spill plan for juvenile out migrants at Rocky Reach Dam is summarized below. See Appendix III for more detailed information.

Spring Spill: No spill will be provided for yearling chinook and steelhead in 2009 (Table RR-4). The performance of the Rocky Reach bypass system in 2003 exceeded the HCP criterion required to eliminate spill for these species. The bypass will be operated exclusively for these two species. In 2009, Chelan has proposed a no-spill study during the juvenile sockeye out migration to evaluate difference in survival for day time and night time released sockeye, and the effects of predation before and after dam passage at Rocky Reach.

Summer Spill: In 2009, Chelan will provide spill for 95% of the juvenile subyearling chinook out migration (Table RR-4). The spill level will be 9% of the daily average river flow.

Table RR-4. Rocky Reach Spill Levels in 2009. Project/ Daily Spill Season Average Spill % Duration (hrs) Time of Day

Rocky Reach None None CH-1, STHD (Bypass - None (Bypass only) only) Rocky Reach hydraulic None - None Sockeye only 9.0 1 0000-0100 Rocky Reach 6.0 6 0100-0700 Summer (CH- 9% 9.0 2 0700-0900 0) 12.0 6 0900-1500 9.0 9 1500-0000

2.1.4 Predator Control Measures

Northern Pikeminnow: Chelan will contract with the United States Department of Agriculture Animal and Plant Health Inspection Wildlife Services (WS) and Columbia Research to remove northern pikeminnow (Ptychocheilus oregonensis) from the immediate areas of Rocky Reach Dam and its associated reservoir. The removal program consists of various angling methods such as rod and reel angling and set-line angling (Hemstrom and Keesee 2009) Removal efforts are conducted by WS specialists and Columbia Research, starting in mid-February and continuing to the end of October. The times crews fish will be adjusted to match peak pikeminnow activity. Chelan will also continue to conduct pikeminnow trapping in the adult fish ladder in 2009.

Chelan supports a local pikeminnow fishing derby that is organized by the local Rotary Club. The event spans a weekend in June and allows the public to participate in efforts to remove pikeminnow which aids salmonid survival.

Avian Control Measures: Stainless steel wires to deter piscivorous avian predators are strung across the entire tailrace area. In addition to the wires, a bird-hazing program is in effect from April 15 to the middle of July. A WS specialist conducts the hazing program for up to 8-hours per day, 7 days per week. Means of harassment include a combination of pyrotechnics, shell crackers, rockets, and propane cannons.

Table RR-5. Spilling Schedule for Rocky Reach Dam1. (Openings are in feet).

Gate Number Total 1 2 3 4 5 6 7 8 9 10 11 12 (2) 2 (2) 2 (2) 2 2 2 (2) 2 2 2 2 2 (2) 2 2 2 12

2 (2) 2 2 2 2 2 2 (2) 2 2 2 2 2 2 2 2 3 (3) 2 2 2 2 3 3 3 (3) 2 2 2 3 (4) 3 3 3 20

2 (3) 3 4 4 3 3 2 3 4 (5) 4 3 3 2 3 4 5 4 4 (4) 2 3 5 5 (5) 4 4 2 3 5 (6) 5 5 4 30

2 3 5 6 (6) 5 5 2 4 5 6 (7) 5 5 2 4 6 6 7 (6) 5 2 4 6 6 (8) 6 6 2 4 6 7 8 (7) 6 40

2 5 (7) 7 8 7 6 2 5 7 7 9 (8) 6 2 5 (8) 8 9 8 6 (3) 5 8 9 9 8 6 3 6 8 9 (10) 8 6 50

3 6 8 10 10 (9) 6 3 6 9 10 (11) 9 6 3 (7) 9 11 11 9 6 3 7 10 11 11 (10) 6 3 7 11 (12) 11 10 6 60

Bracketed values indicate opening one foot less than value. For example: (2) means 0 or 2 foot opening (3) means 2 or 3 foot opening

1Gate 8 will not be operational during a portion of the fish spill season due to required repairs that were discovered during 2004 inspections. Gate 7 will be the first gate operated during this period.

In 2002, Chelan initiated a study with WDFW and the University of Washington to study the impacts of piscivorous bird populations on salmonids in the Mid-Columbia River. The study was completed in 2004 and the results are being used to implement a piscivorous bird management plan.

2.2 Adult Fish Passage

2.2.1 Adult Fish Passage Facilities

Operations Schedule: For operation and maintenance purposes, the primary fish passage season is considered to be April through November. Adult fish facilities will be operated from March 1 to December 31 each year. If more time is required to complete critical fishway maintenance during the annual fishway overhaul period, the fishway outage may encompass the month of December in addition to January and February. Chelan PUD will notify the HCP Coordinating Committee as soon as possible in the process and request the additional time. Chelan PUD’s annual goal is to have the fishway back in service by March 1. If unforeseen events or circumstances arise during the maintenance period which could extend the fishway outage beyond March 1, the PUD will again notify the Committee and request an extension beyond March1.

Operation Criteria:

a. Adult fishway: Water depth over weirs will be maintained at 1.0 to 1.2 feet.

b. Transportation Channel (Between trifurcation pool and ladder): A transportation velocity of 1.5 to 4.0 feet per second (prefer 2.0 fps) shall be maintained in the channel and the lower end of the fish ladder which is below tailwater elevation.

c. Entrances: 1. General: A 1.0-foot minimum head will be maintained. 2. Right Powerhouse Entrances (RPE): Rotary gates at RPE1 and RPE2 shall be fully open. 3. Left Powerhouse Entrance (LPE): LPE1 and LPE3 shall be continuously open.

Submerged weir crest elevation at the LPEs for the following tailwater elevations shall be at or below:

Tailwater Elevation Submerged 2Weir Crest Elevation 615.0 603.5 620.0 606.5

2During periods of high tailwater (elev. 621.0 or above) it has been found that to keep a 1-foot differential at the LPE and MSE, gate depths can’t be set at the elevation listed. The depth that the gates are set at is generally between 10.0 and 12.0 feet. This has been coordinated with the FPC.

4. Orifice Entrances: The following six orifice entrances shall be open: CC1, CC2, CC3, CC16, CC18, and CC20.

5. Main Spillway Entrance (MSE): Open May 1 through October 31. One gate (MSE 1) is permanently closed. One gate (MSE 2) is permanently open.

Submerged weir crest elevations at MSE 2 for the following tailwater elevations shall be at or below:

Tailwater Elevation Submerged Weir Crest Elevation 621.5 604.5 625.0 605.3

d. Trashracks:

1. Ladder Exit and Attraction Water Intake Trashracks: Visible buildup of debris shall be removed immediately.

2. Picketed Leads at Counting Window: Visible buildup of debris shall be removed immediately.

e. Staff Gauges and Water Level Indicators:

1. Gauges and indicators shall be readable at all water levels encountered during passage periods.

2. Staff gauges or water level indicators shall be located upstream and downstream from entrances, and at a convenient location for viewing along the fishway.

3. Staff gauges and/or water level indicators shall be consistent with panel board water surface readings in the fishway control room.

4. Water level indicators shall be maintained such that they are in continuous operation.

2.2.2 Powerhouse Flow Distribution. Turbine unit No. 11’s loading may be adjusted as needed during daylight hours from May 1 through October 31 of each year, during periods when the powerhouse is not fully loaded. This can be used as a tool to enhance adult fish passage at the LPEs in necessary.

2.2.3 Spill Management

a. Spill not provided for juvenile passage will be passed through preferred “fish spill” gates to avoid delay of upstream migrants according to agreements made within the HCP Coordinating Committee.

b. Spill for juvenile passage will be shaped to follow the diel arrival distribution of the fish that are present at any given time.

2.2.4 Inspection and Reporting. Chelan PUD’s fishway attendants conduct two walk-throughs of the Rocky Reach fishway per day. A daily report is logged using information from the morning walk-through. The adult fish passage facilities are also inspected monthly by WDFW personnel. The FPC provides monthly reports covering inspections by WDFW for that month as well as a year-end report.

2.2.5 Fish Counting. From April 14 to November 15, the fishway is monitored 24 hrs per day via digital video recording equipment. Chelan PUD employs fish counters who read the video recording from the previous day and send the counts to Chelan PUD’s Natural Resource Department. The department’s secretary posts the counts on the PUD’s FTP site, and the University of Washington retrieves the counts for the DART site.

2.3 Total Dissolved Gas Monitoring and Control. Total dissolved gas monitoring at Rocky Reach Dam is conducted in accordance with the Chelan PUD Monitoring Plan For TDG, Appendix II. The TDG levels are monitored in two locations, one in the forebay and one in the tailrace at Rocky Reach Dam. The TDG monitoring project begins on April 1 of each year and ends on September 1. During this time, TDG levels are recorded on a 15-minute interval basis. The 15-minute intervals are averaged into hourly readings for use in compiling daily and 12-hour averages. The hourly average data will also be forwarded to the US Army Corps of Engineers Reservoir Control Center (USACE-RCC) and posted at their site on the World Wide Web.

3. Facilities Maintenance

3.1 Juvenile Fish Passage Facilities

3.1.1 Scheduled Maintenance. Scheduled maintenance of the RRJFB will occur in the off-season, which typically runs from September through March. At this time, the various systems that comprise the RRJFB will be inspected; worn and/or broken parts will be repaired or replaced (See Appendix I).

3.1.2 Unscheduled Maintenance. If unscheduled maintenance will cause an outage of the RRJFB during the juvenile fish migration season, Chelan PUD’s biologists will inform the HCP Coordinating Committee of the problem. If the problem is an emergency and immediate action must be taken, then the HCP Coordinating Committee will be informed as soon as possible. If the problem is not an emergency, but serious

13 enough that action will need to be taken during the migration season, Chelan PUD will coordinate efforts with the HCP Coordinating Committee.

3.2 Adult Fish Passage Facilities

3.2.1 Scheduled Maintenance. Scheduled maintenance for the adult fishway will occur in the off-season from January 2 to March 1. The annual list of items that are checked is noted below and in Appendix IV. Fishway attendants also record additional punch list items to address as they discover them throughout the fish passage season.

Annual Overhaul List:

a. Perform maintenance on gate and hoist motors.

b. Inspect and repair/replace aluminum diffuser grating.

c. Clean and test fishway annunciators.

d. Replace burned-out tunnel lamps.

e. Check and clean/repair attraction water intake screens.

f. Check and clean traveling screens.

g. Inspect fishway gates and repair as needed.

h. Inspect fishway attraction water system which includes:

1. Inspect and service high-pressure oil pumps.

2. Check nitrogen pre-charge pressure

3. Inspect turbine pumps A, B, and C.

4. Check clearances on lower guide bearings.

5. Check clearance runner crown and stay ring bore.

6. Inspect carbon seals.

7. Put attraction water system through dry run.

i. Inspect fishway-traveling screens:

1. Clean debris from traveling screen area.

2. Inspect penstock intake chamber.

3. Inspect and replace bearings as needed.

4. Inspect sprockets and shaft bushings.

j. Fishway flap and wing gate:

1. Inspect and repair flap gates.

2. Inspect seals and indicator rods.

3. Inspect wing gates.

k. Fishway regulating gate and picket weir:

1. Inspect control valves and hoses at the middle spillway entrance (MSE).

2. Inspect and replace cables on MSE regulating gates.

3. Inspect left powerhouse entrance (LPE) regulating gates.

4. Clean, inspect and repair picket barrier gate hoist.

5. Drain and clean CS-S1 (valve that controls make-up water in the upper fishway).

l. Put turbine pump through dry run and test alarms.

m. Clean stilling wells and check operation of orifice valves.

n. Clean and polish fish counting window.

3.2.2 Unscheduled Maintenance. If unscheduled maintenance must occur during the fish passage season that results in the need for an outage of the attraction water system, the HCP Coordinating Committee will be consulted. Historically, nighttime outages have been preferred.

4. Turbine Unit Operation and Maintenance. Unit operating priority during the adult and juvenile fish passage periods can be found in sections 2.1.2 and 2.2.2, Powerhouse Flow Distribution. To the extent possible, maintenance of priority units will be scheduled outside of fish passage periods. Units 1 and 2 are important components of the RRJFB; long-term outages of the two units will be avoided during the juvenile passage season, with the exception of the “split-service” requirements noted in section 2.1.2.

5. Dewatering

5.1 Juvenile Fish Facilities. The RRJFB is dewatered at the end of the juvenile fish bypass season (i.e. after 31 August) for fall/winter shutdown and annual maintenance. The bypass may also be dewatered due to unforeseen emergency repairs during the fish migration season. A fisheries biologist will be on-site for coordination and oversight of dewatering activities. Detailed dewatering procedures for the RRJFB can be found in Appendix I.

5.2 Adult Fish Facilities. Rocky Reach Dam’s adult fish facilities are dewatered for annual maintenance during the off-season (December 1 to March 1) and to address infrequent emergency repairs (as needed during the fish migration season). Although every effort is made to allow fish to leave the facilities volitionally, rescue and evacuation of some fish is typically required.

To facilitate volitional exiting by fish, the upper fishway section is dewatered three to four days ahead of the lower fishway. Orifice gates and ladder entrances in the lower fishway will remain open during this time, so that fish are able to leave the facility.

When fish evacuation is necessary, a project biologist will be on site to coordinate and oversee fish salvage and handling. He will ensure that proper procedures are followed, and the equipment needed to safely evacuate the fish is on hand.

The evacuation of adult fish that are listed as threatened or endangered is a priority. However, the goal is to successfully relocate all fish to the river in good physical condition.

Rock Island Dam, FERC No. 943

1. Fish Passage Information. The locations of fish passage facilities at Rock Island Dam are shown in the overall site plan for Rock Island (Figure RI-1). Dates of project operations for fish purposes and special operations are listed in Table RI-1.

1.1 Juvenile Fish Passage

1.1.1 Facilities Description. Juvenile fish passage at Rock Island Dam can occur through two routes, spill and a bypass facility integrated into the second powerhouse.

Spill for Juvenile Fish Passage: The focus of juvenile fish bypass at Rock Island Dam has been directed towards optimizing the efficiency of fish passage via spill. To achieve this, nine of thirty-two spill bays have had their spill gates modified to provide surface spill. Surface spill was accomplished by putting notches in the upper sections of the spill gates. Six of the nine gates have notches that are 8 feet wide by 17 feet deep and can spill up to 2,500 cfs. The remaining gates have notches that are smaller and pass less volume (approximately 1,850 cfs). The total amount of water that can be passed through the notched gates is approximately 21 kcfs. Three of the modified gates have had further modification and now have a “over-under” design which enables surface flow attraction and delivers water in the tailrace towards the surface, thus reducing the uptake of atmospheric gases.

Second Powerhouse Bypass System: Downstream migrant passage facilities are incorporated in the second powerhouse and right bank fishway. The downstream migrant facilities consist of two separate bypass systems that fish enter volitionally. Both systems combine to utilize a common 36-inch discharge pipeline. The intake gatewell system (GWS) consists of a series of ports at the second powerhouse intake gate slots and a fingerling bypass channel that extends along the upstream face of the powerhouse structure. The traveling water screen bypass (TWSB) consists of a series of ports and vertical riser pipes. The traveling water screens are located adjacent to the right bank fishway exit. Incorporated in the bypass pipeline is a fish trapping facility for the collection and examination of downstream migrants.

Intake Gatewell System: The GWS consists of two 8 inch diameter ports in the upstream wall at each of the intake gate slots at powerhouse 2. Each of the eight units has two intake gate slots for a total of 32 ports.

Figure RI-1. Site plan of Rock Island Dam.

Powerhouse 1 Powerhouse 2

Left Bank Ladder Entrance Middle Ladder Right Bank Ladder Entrance Entrances

The ports discharge into a bypass channel that extends the full length of the powerhouse. Removable gratings extend the full length of the powerhouse, above the bypass channel, to provide natural light and access for maintenance. Metal halide lights (175 watt) are located on the wall opposite each port and above the water surface to attract migrants. This bypass channel empties into a 36 inch bypass pipe.

Table RI-1. Dates of Project Operations for Fisheries Purposes at Rock Island Dam. Project Name Start End End Date Bypass System and Traveling Water Screen Operations March 1 Dec.1 Fish Passage Efficiency Study NA NA

Juvenile Fish Bypass Trap Operation (includes GBT April 1 August 31 examinations) Gatewell and Traveling Water Screen Bypass Maintenance Dec. 1 March 1 Survival Study (Acoustic Tag) ~April 17 Early June

Spring Fish Spill* April 17 June 15 Summer Fish Spill* July 1 August 15

Dissolved Gas Monitoring April 1 August 31

Avian Control April 15 Mid-July

Pikeminnow Control Jan. 15 Oct. 31

Adult Fishway Operation March 1 Dec. 1

Adult Fish Counting April 15 Nov. 15

Adult Fishway Maintenance** Dec. 1 March 1

*Actual dates may vary according to in-season run-timing information. **In general, each of the three fishways is overhauled per month (December through February). During this winter maintenance period, at least one fishway remains open for fish passage.

Traveling Water Screen Bypass: The TWSB consists of five 9 inch diameter ports in the outer walls of the screen structure. The ports guide downstream migrants to two 30 inch vertical riser pipes. These combine to form a single discharge pipe that flows over a weir and into the 36 inch bypass pipe mentioned above. A single 150 watt lighting system is located opposite the 9 inch ports to attract downstream migrants.

Smolt Sampling Facility: The 36 inch bypass pipeline extends downstream from the bypass well. At a point where the bypass pipe reaches the vicinity of the attraction water reservoir of the fishway, a transition section diverts the flow to the fish trapping facility. The facility, consisting of three inclined perforated-plate screens, is designed to screen the entire flow of the bypass system. The screen separates the fish from the flow and permits collection of the fish in a holding flume at the downstream end of the screens. When the collection time is completed, the fish are routed from the flume into a hopper. An elevator raises the hopper to an elevation that allows transfer of fish into a holding tank. From the tank, the fish are sampled and then released into the tailrace.

1.1.2 Juvenile Fish Migration Timing. The primary juvenile fish passage period at Rock Island Dam occurs from April 1 through August 31 (Praye and Dymowska, 2002). Currently, migration run timing is monitored by the Chelan PUD and is reported to the Fish Passage Center on a daily basis during the monitoring season of 1 April to 31 August. Table RI-2 shows the mean historical run-timing at Rock Island Dam.

Table RI-2. Mean Historical Juvenile Fish Run-timing at Rock Island Dam (Columbia Basin Research DART website).

Passage Dates Species First 5% 10% 50% 90% 95% Last

CH-1 4/02 4/19 4/24 5/13 6/01 6/07 8/10

STHD 4/01 4/27 5/01 5/18 6/05 6/11 8/27

SOCK 4/05 4/24 4/27 5/14 6/10 6/19 8/23

CH-0 6/01 6/15 6/20 7/12 8/06 8/13 8/31

1.2 Adult Fish Passage

1.2.1 Facilities Description. Rock Island Dam is equipped with three fishways; one at each powerhouse, and one that divides the spillway in half. All three fishways consist of entrances with attraction water systems, a pool and ladder section, flow regulation weirs, and a fish counting station. The left bank fishway (powerhouse 1) has two vertical slot entrances located at the shoreline and a gravity attraction water system. The center fishway (spillway) has a gravity attraction water system, a main vertical slot entrance that discharges perpendicular to the spillway, and a small vertical slot entrance that discharges parallel with spillway flow just downstream of the spillway stilling basin. The right fishway (powerhouse 2) has four vertical slot entrances; one at the north end of the powerhouse, two at the shoreline corner (south end of the powerhouse) and a tailrace entrance that is located downstream of the powerhouse. The attraction water in the right fishway is provided by a combination of gravity and three motor-operated attraction

20 water pumps. Lights have been installed from the counting window to the fishway exit to improve fish passage through this section of the upper fishway.

1.2.2 Adult Fish Migration Timing. For the purpose of operation and maintenance, primary fish passage is considered to occur from March through November of each year (CPUD unpublished data). Primary passage periods by species are included in Table RI- 3.

Table RI-3. Primary Adult Salmonid Passage Periods by Species at Rock Island Dam. Spring Chinook* Mid-April to late June Summer Chinook* Mid to late June to early September Fall Chinook* Early September to November Steelhead April to March Coho September to November Sockeye Late June to mid-August * For accounting purposes and based on historical run timing, the spring chinook run occurs from April 15 to June 23, summer chinook from June 24 to Sept. 1, and fall chinook from Sept. 2 to Nov. 15.

2. Project Operation.

2.1 Juvenile Fish Passage

2.1.1 Spill Management. The 2009 spill plan for juvenile out migrants at Rock Island Dam is summarized below. Please see Appendix III for more detailed information.

Table RI-4. Proposed Rock Island Spill Level and Daily Shape in 2009. Project/ Daily Spill Proposed Proposed Time of Day Season Average Spill % Duration

Rock Island 12.5 4 0000-0400 Spring 10.0 2 0400-0600 10% 6.0 5 0600-1100 10.0 9 1100-2000 12.5 4 2000-0000 Rock Island 23.0 1 0000-0100 Summer 19.0 1 0100-0200 20% 15.0 8 0200-1000 19.0 1 1000-1100 23.0 13 1100-0000

Spill Shaping: The District will again shape spill volumes on a daily basis according to the observed diel passage of smolts at each project, based on split beam Hydroacoustic monitoring conducted at Rocky Reach and Rock Island dams (Adeniyi et al.1999, Hemstrom 2003-2008, Steig, et al. 1997, and Iverson, et al.1997-1998). The different spill percentages, or spill blocks, are calculated by time such that the summation of water volume from all spill blocks within the day will equal the volume of water that would have been spilled under a constant, unshaped spill level (for instance 9% spill at Rocky Reach with no shaping). This spill strategy attempts to maximize spill water volume to maximize effectiveness for passing smolts. Spill shape will be consistent with shaping from 2003 through 2008 (see Table 4, Appendix 3 for more information on spill shaping).

Spring Spill: Chelan will spill ten percent of the daily average river flow during a period that encompasses 95% of each Plan Species’ spring juvenile migration. The start of the spring spill program will begin no later than April 17, but the date may be adjusted by the HCP Coordinating Committee based on in-season migration information. Spring spill will end approximately June 1, or upon completion of the 2009 spring survival study.

Summer Spill: Chelan will spill twenty percent of the daily average river flow during a period that encompasses 95% of summer juvenile migration. Summer spill will begin approximately June 1, after completion of the spring survival study. Spill outside the specified dates can occur if in-season information shows that it is needed to encompass 95% of the run. This will be coordinated through the HCP Coordinating Committee.

Spill Schedule: All spill for fish passage will come from notched gates in bays 1, 16, 18, 30, 31, 32, 24, 26, and 29. If the maximum spill volume through the preferred bays is not sufficient to meet daily fish spill requirements, or hydraulic capacity is exceeded, full gates in bays 20, 19, 25, 17, 22, and 21 (in that order) are to be pulled. If it is necessary to spill a larger volume of water than the above gates can provide, then gates are pulled in the order necessary to maintain plant safety.

2.1.2 Second Powerhouse Bypass System

Intake Gatewell System: The GWS operates from approximately March 1 to December 1 of each year. The operation’s criteria are shown below.

a. In normal operation, the head on the regulating gate should be set at 2.4 feet.

b. The flow through the GWS ports should be 80 cfs.

c. Lights in the GWS ports are checked to ensure that they are operational.

Traveling Water Screen Bypass System: The TWSB is operated from approximately March 1 to December 1 of each year. The operation’s criteria are shown below.

a. The differential between the top of the gate and the water level in the upwelling chamber should be set at 1.13 feet.

b. The flow through the ports should be 20 cfs.

c. Bypass ports for the traveling screens will be checked for debris and to ensure that lights are operational.

2.1.3 Smolt Sampling Facility. The Rock Island Powerhouse 2 smolt trap is operated from April 1 to August 31 by Chelan PUD in conjunction with the FPC. The fish are separated from the bypass flow by incline screens that shunt the fish into a holding flume. The fish are collected each day over a 24-hour period (0900-0900), and the entire sample is enumerated. The sampling provides juvenile run-time information as well as aids in the decision to stop and start fish spill at Rock Island Dam.

2.1.4 Powerhouse Flow Distribution. Powerhouse 2 has operating priority over powerhouse 1 during the juvenile fish passage season. Priority of unit operation at powerhouse 2 generally starts with unit 8 and progresses sequentially to unit 1. If powerhouse 1 is in operation, the priority starts with unit 10 and progresses to unit 1.

2.1.5 Predator Control Measures

Northern Pikeminnow: Chelan will contract with the United States Department of Agriculture Animal and Plant Health Inspection Wildlife Services (WS) and Columbia Research to remove northern pikeminnow (Ptychocheilus oregonensis) from the immediate areas of the Rock Island Dam and its associated reservoir. The removal program consists of various angling methods such as rod and reel angling from the dam, set-lining, angling from boats, and passive trapping in the right bank adult fish ladder. Removal efforts will start between January 15 and February 15, and continue to the end of November. Fishing times will be adjusted to match peak pikeminnow activity. Chelan will also continue to conduct pikeminnow trapping in the right bank adult fish ladder in 2009.

Chelan also contracts with the East Wenatchee Rotary Club to organize and carry out a local pikeminnow fishing derby in Rock Island and Rocky Reach reservoirs. The event spans a weekend in June and allows the public to participate in efforts to remove pikeminnow which aids salmonid survival.

Avian Control Measures: Stainless steel wires to deter piscivorous avian predators are strung across the entire tailrace area. In addition to the wires, a bird-hazing program is in effect from April 15 to the middle of July. A WS specialist conducts the hazing program for up to 8-hours per day, 7 days per week. Means of harassment includes a combination of pyrotechnics, shell crackers, rockets, propane cannons, and lethal control measures.

In 2002, Chelan initiated a study with WDFW and the University of Washington to study the impacts of piscivorous bird populations on salmonids in the Mid-Columbia River. The study, which concluded in 2004, was used to develop an avian predation management plan that was implemented in 2007, and will continue in 2009.

2.2 Adult Fish Passage

2.2.1 Adult Fish Passage Facilities

Operations Schedule: For operations and maintenance purposes, the primary fish passage season is considered to occur from March through November (CPUD unpublished data). Adult facilities will be open from March 1 to December 1 each year. If more time is required to complete critical fishway maintenance during the annual fishway overhaul period, the fishway outage may extend beyond 1 March. Chelan PUD will notify the HCP Coordinating Committee as soon as possible in the process and request the extension.

Operation Criteria:

Left Bank Fishway

a. Fish Ladder:

1. Water depths over weirs shall be 1.0 to 1.2 feet.

b. Entrances:

1. Head will be from 1.0 to 1.5 feet.

2. Two entrances will operate at all times.

3. Weir depth will be 6.5-foot minimum for each entrance (below tailwater).

c. Trashracks:

1. Visible buildup of debris shall be cleaned immediately from the ladder exit and attraction water intake trashracks.

2. Visible buildup of debris shall be cleaned immediately from picket leads at the counting window.

d. Staff Gauges and Water Level Indicators:

1. Gauges and indicators shall be readable at all water levels encountered during passage periods.

2. Staff gauges or water level indicators shall be located upstream and downstream from entrances, at a convenient location for viewing along the ladder.

3. Staff gauge or water level indicators shall be consistent with water surface elevations on the computer.

Middle Fishway

a. Fish Ladder:

1. Water depth over the weirs shall be 1.0 to 1.2 feet.

b. Entrances:

1. Head will be from 1.0 to 1.5 feet.

2. The main 4.0 foot wide entrance will be open continually.

3. Weir depth will be 8.5 feet minimum (below tailwater).

4. The left 2.0 foot wide entrance will be fully opened at all times.

c. Trashracks:

1. Visible buildup of debris shall be cleaned immediately from the ladder exit and attraction water intake trashracks.

2. Visible buildup of debris shall be cleaned immediately from picket leads at the counting window.

d. Staff Gauges and Water Level Indicators:

1. Gauges and indicators shall be readable at all water levels encountered during passage periods.

2. Staff gauges or water level indicators shall be consistent with water surface elevations on the computer.

3. Staff gauges or water level indicators shall be located upstream and downstream from entrances, at a convenient location for viewing along the ladder.

Right Bank Fishway

a. Fish ladder:

1. Water depth over weirs shall be 1.0 to 1.2 feet.

2. Wing gates at each entrance allow 3.5 foot opening when fully open. Minimum opening of wing gates shall be 3.0 feet, which occurs when gate deflections are 16 degrees from the fully open position.

3. The left powerhouse entrance (LPE) shall be continuously open.

4. The two right powerhouse entrances (RPE1 and RPE2) and the tailrace entrance (TRE) shall be continuously open.

5. The high velocity jet pipe at RPE2 shall be operated at and above tailwater elevation 570 feet. The ball valve (MOV RO2) shall be fully open during that time.

b. Transportation channel: A transportation velocity of 1.5 to 4.0 feet per second (prefer 2.0 fps) shall be maintained in the channel and the lower end of the fish ladder.

c. Trashracks:

1. Visible buildup of debris shall be cleaned immediately from the ladder exit trashrack.

2. Visible buildup of debris shall be cleaned immediately from picket leads at the counting window.

d. Traveling screens at the auxiliary water intake:

1. At least one of two traveling screens will be operating, while the ladder is operational, and the high velocity jet pipe is providing attraction flow.

2. Operation of both traveling screens is required when attraction water pumps are non-functional, and gravity water must be used.

3. Adequate bypass flow is to be maintained throughout the juvenile fish migration.

e. Staff gauges and water level indicators:

1. Gauges and indicators shall be readable at all water levels encountered during passage periods.

2. Staff gauges or water level indicators shall be consistent with water surface elevations on the computer.

3. Staff gauges or water level indicators shall be located upstream and downstream from entrances, at a convenient location for viewing along the ladder.

2.2.2 Spill Management

a. Additional spill not provided for juvenile passage will be discharged through specified gates to avoid delay of upstream migrants according to agreements made within the HCP Coordinating Committee.

b. Spill will be shaped to follow the diel distribution of the fish present. Table RI-5 shows the Rock Island Adult Spill Criteria, when juvenile spill is not in effect. The criteria are only used when the spill volume needed is equal to or less than 40 kcfs.

2.2.3 Inspection and Reporting. Chelan PUD fishway attendants conduct 1 to 2 walk-throughs of the Rock Island fishways per day. The fishways are also checked via computer at least three times per day. Reports summarizing the inspections are written daily and include the morning and afternoon passage periods. The adult fish passage facilities are also inspected monthly by WDFW personnel. The FPC provides monthly reports covering inspections by WDFW as well as a year-end report.

2.2.4 Fish Counting. From April 14 to November 15, the three fishways are monitored 24 hrs per day via digital video recording equipment. Chelan PUD employs fish counters who read the video recording from the previous day and send the counts to Chelan PUD’s Natural Resource Department. The department’s secretary posts the counts on the PUD’s FTP site, and the University of Washington retrieves the counts for the DART site.

Table RI-5. Rock Island Adult Spill Criteria for Spill of 40 Kcfs or Less.

Gate Number Total Feet Open

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

3 3

3 3 6

3 3 3 9

3 4 3 10

3 4 3 6 16

3 4 3 6 5 21

3 4 3 3 6 5 24

3 4 3 3 3 6 5 27

3 4 3 3 3 5 5 5 31

3 4 3 3 4 7 5 5 34

3 4 3 4 4 8 5 5 36

3 4 3 5 4 8 6 5 38

3 4 3 5 5 8 7 5 40

3 4 3 6 6 8 7 5 42

3 4 3 6 7 9 7 5 44

3 4 4 7 7 9 7 5 46

3 4 4 8 8 9 7 5 48

3 4 4 9 8 9 7 5 49

3 4 4 10 9 9 7 5 51

3 4 5 11 9 9 7 5 53

3 4 6 11 9 9 7 6 55

3 4 6 11 10 9 8 6 57 Notes: 1. Minimum gate opening for shallow and deep gates is reflected. 2. These criteria should be employed when juvenile criteria is not in effect. 3. Mid-range and higher spill levels do not have revised spill configuration gate settings because of limited operation flexibility. 4. These criteria are only applicable to the lower spill level (approximately 40 kcfs or less).

2.3 Total Dissolved Gas Monitoring and Control

2.3.1 Physical Monitoring. Total dissolved gas monitoring at Rocky Reach Dam is conducted in accordance with the Chelan PUD Monitoring Plan For TDG, Appendix II. The TDG levels are monitored at two locations, one in the forebay and one in the tailrace, at Rock Island Dam. The TDG monitoring project begins on April 1 of each year and ends on September 1. During this time, TDG levels are recorded on a 15-minute interval basis. The 15-minute intervals are averaged into hourly readings for use in compiling daily and 12-hour averages. The hourly average data will also be forwarded to the USACE-RCC and posted at their site on the World Wide Web.

2.3.2 Biological Monitoring. The Chelan PUD, in conjunction with the FPC, conducts gas bubble trauma (GBT) monitoring at the Rock Island Bypass Trap. Random samples of 100 spring chinook, steelhead and subyearling chinook are examined two days per week during the sampling season (April 1 to August 31). Examinations for GBT symptoms follow a standardized FPC protocol. The results of each examination are transmitted to the FPC. A year-end report is prepared by the Chelan PUD summarizing the results of the sampling season.

3. Facilities Maintenance

3.1 Juvenile Fish Facilities

3.1.1 Scheduled Maintenance. Scheduled maintenance for the GWS and TWSB will occur from December 1 to March 1 of each year. Maintenance of the juvenile fish bypass system will coincide with the maintenance of the right bank adult fishway.

Annual Overhaul List:

a. Remove trash and debris from GWS and TWSB.

b. Inspect regulating gates and ensure that they are working properly.

c. Replace all brushes and seals on regulating gates R11 and R12 annually, i.e. during every overhaul period.

d. Replace light bulbs as needed throughout the bypass system.

e. Inspect the overall structure and make repairs as needed.

f. Check the operation of the bypass trap fish elevator.

3.1.2 Unscheduled Maintenance. Unscheduled maintenance that is necessary during the juvenile fish migration period will be conducted, so that

29 interruptions to the migration of juvenile fish are minimized. Repairs will be made quickly to keep outages to a minimum.

3.2 Adult Fish Facilities

3.2.1 Scheduled Maintenance. Scheduled maintenance for the adult passage facilities will occur during the off-season from December 1 to March 1 of each year. The annual list of items that are checked is shown below and in Appendix? Fishway attendants also record additional items to check as they are discovered throughout the passage season.

Annual Overhaul List:

Left Bank Fishway

a. Remove trash and debris from upper and lower channels.

b. Inspect the fishway structure and make repairs as needed.

c. Ensure stilling wells are operating properly.

Middle Fishway

a. Inspect gate operator MO1.

b. Remove all trash and debris from the upper and lower fishway.

c. Inspect all attraction water diffusion chambers.

d. Inspect and repair any loose grating.

e. Flush one inch line to stilling well.

f. Inspect and ensure that the motor operated valves (MOVs) are working correctly. The MOVs introduce attraction water to the fishway.

g. Grease and change oil in the MOV gearboxes and rebuild if necessary.

Right Bank Fishway

a. Remove trash and debris from upper and lower channel.

b. Inspect and service the traveling screens.

c. Inspect and service gates that have wire rope.

d. Clean sumps for counting station pumps.

e. Inspect and service sluice gate stems and stands.

f. Inspect the lower channel (look for missing diffuser grating, etc.).

g. Inspect wing gate operators.

h. Inspect and service three attraction water pumps. The gear boxes from the pumps will be removed, transported and inspected by a professional machine shop every 5 years.

3.2.2 Unscheduled Maintenance. If unscheduled maintenance must occur that results in the need for an outage of an adult fishway during fish passage season, the HCP Coordinating Committee will be consulted. Historically, nighttime outages have been preferred.

4. Turbine Unit Operation and Maintenance. Unit and powerhouse operating priority at Rock Island can be found in section 2.1.4. There are no special operational considerations concerning outages of units for maintenance purposes with regards to fish passage.

5. Dewatering

5.1 Juvenile Fish Facilities. The GWS and TWSB are dewatered for annual maintenance during the off-season (December 1 to March 1) and to address unforeseen emergency repairs (as needed during the fish migration season). Dewatering for off- season maintenance purposes occurs in conjunction with the dewatering of the right bank fishway. The ports leading into the collection channel are closed and the water is slowly drawn down. Any fish present in the system leave the channel volitionally and are routed to the tailrace via the bypass pipe. Personnel are on site to ensure that no stranding occurs.

5.2 Adult Fish Facilities. Dewatering of the adult fishways occurs during the off-season (December 1 to March 1) for scheduled maintenance and for infrequent emergencies. Typically one ladder at a time is dewatered leaving two fishways operational. Although every effort is made to allow fish to leave the facilities volitionally, evacuation of some fish is typically required.

To facilitate the volitional egress of fish, the upper fishway is dewatered ahead of the lower fishway. Ladder entrances in the lower fishways remain open during this time, so that fish are able to exit the fishway. When fish evacuation is necessary, a project biologist will be on site to coordinate and oversee fish salvage and handling. He will ensure that proper procedures are followed and the equipment needed to safely evacuate the fish is on hand. The evacuation of adult fish that are listed as threatened or endangered is a priority. However, the goal is to successfully relocate all fish to the river in good physical condition.

References

Adeniyi, R. and T. W. Steig. 1999. Hydroacoustic evaluation of the behavior of juvenile Salmon and steelhead approaching the two surface collectors and the powerhouse of Rocky Reach dam during spring of 1998. Report by Hydroacoustic Technology, Inc. to Chelan Co. PUD, Wenatchee, Wash.

Bair, S.H. 1981. Operation Manual-Fingerling fish trapping facility, Rock Island Project. Prepared for Chelan County PUD, Wenatchee, WA, by Scott H. Bair, Consulting Hydro-Civil Engineer.

Bair, S.H. 1982. Operation Manual-Downstream migrant fish passage facilities, Rock Island Project. Prepared for Chelan County PUD, Wenatchee, WA, by Scott H. Bair, Consulting Hydro-Civil Engineer.

Bair, S.H. 1982. Operation Manual-Upstream migrant fish passage facilities, Rock Island Project. Prepared for Chelan County PUD, Wenatchee, WA, by Scott H. Bair, Consulting Hydro-Civil Engineer.

Bair, S.H. 1982. Operation Manual-Upstream migrant fish passage facilities, Rock Reach Project. Prepared for Chelan County PUD, Wenatchee, WA, by Scott H. Bair, Consulting Hydro-Civil Engineer.

Burgess, C., and J.R. Skalski. 2003. Draft-Evaluation of the Run-Timing of Yearling and Subyearling Chinook Salmon and of Sockeye Salmon and Steelhead Trout at Rocky Reach Dam Using Program RealTime. Prepared for Chelan County PUD, Wenatchee, WA.

CH2M Hill and Duke Engineering Services. 2002. Rocky Reach Juvenile Fish Bypass- 2002. Design Report Surface Collector and Bypass Conduit. Final report to Chelan County PUD, Wenatchee, WA.

Chelan County PUD. Offered for Signing 2002. Anadromous Fish Agreement and Habitat Conservation Plan-Rock Island Hydroelectric Project, FERC License No. 943.

Chelan County PUD. Offered for Signing 2002. Anadromous Fish Agreement and Habitat Conservation Plan-Rock Reach Hydroelectric Project, FERC License No. 2145.

Chelan County PUD. Unpublished data, Rock Island and Rocky Reach Adult Fishway Ladder Counts. Chelan County PUD, Wenatchee, WA.

Iverson, T.K. and A.G. Birmingham. 1998. Hydroacoustic evaluation of spill Effectiveness at Rock Island Dam during spring and summer, 1998. Report By Hydroacoustic Technology, Inc. to Chelan Co. PUD, Wenatchee, Wash.

Iverson, T.K. and J.E. Keister. 1997. Hydroacoustic evaluation of notched surface Flow spill gates and overall fish passage at Rock Island Dam in 1997. Report By Hydroacoustic Technology, Inc. to Chelan Co. PUD, Wenatchee, Wash.

Mosey, T.R., Murdoch, K.G., and B.M. Bickford. 2000. Biological and Hydraulic Evaluation of the Rocky Reach Fish Bypass System, 1999. Chelan County PUD, Wenatchee, WA.

Murphy, L.J., and T.M. Mosey. 2002. Biological and Hydraulic Evaluations of the Rocky Reach Fish Bypass System 2001. Chelan County PUD, Wenatchee, WA.

Praye, L., and L. Dymowska. 2002. Rock Island Smolt and Gas Trauma Monitoring, 2001. Prepared for Chelan County PUD, Wenatchee, WA, by Washington Department of Fish and Wildlife.

Steig, T.W., R. Adeniyi, and V. Locke. 1997. Hydroacoustic evaluation of the fish Passage through the powerhouse, the spillway, and the surface collector at Rocky Reach Dam in the spring and summer of 1997. Report by Hydroacoustic Technology, Inc. to Chelan Co. PUD, Wenatchee, Wash.

Appendix I

Operation and Maintenance Instructions

for the

Rocky Reach Juvenile Fish Bypass System

(CD)

Appendix II

Chelan PUD Monitoring Plan for

Total Dissolved Gas at Rocky Reach

and Rock Island Dams in 2009

2009 Rock Island Operational Plan for Total Dissolved Gas During Fish Spill Season

April 1 – August 31 (All spill between these dates is subject to the actions contained in this plan.)

Protocol

1. If tailrace TDG average is greater than 120% for the 6-hour average monitor for 2 hours, re-check 6-hour average if TDG >120% for 6-hr average, shift spill from gate 20 to 27 monitor for 2 hours, re-check 6-hour average if TDG >120% for 6-hr average, open gate 20 and close 2 notched gates (closure order is listed below) monitor for 2 hrs; re-check 6-hour average if TDG >120% for 6-hr average, close two more notched gates if after closing gates to control TDG levels, the TDG 1-hr average drops below 118%, reopen notched gates in the reverse order of closure

2. If tailrace TDG is greater than 125% for 1 hr follow protocol outlined above, but instead, use one-hour TDG levels of 125% as the metric continue until TDG is less than 125% for 1 hr and until the 6-hr average TDG <120%

3. If forebay TDG exceeds 115% for greater than one hour, call Rocky Reach and advise that the RI forebay is out of compliance. Rocky Reach will then reduce spill, but only if the RR forebay TDG is 115% or less. Once RI forebay TDG levels reduce to 113% call RR again so that they may return to previous spill operations.

4. Order of notched gate closure: 29, 24, 18, 16 If we have to close any more gates than this, we have a big problem that we will need to be addressed by means other than continuing to reduce spill.

** Note: It will not be necessary to monitor for one full hour after re-opening if it appears that TDG is approaching the upper threshold, rather, the procedure will repeat upon reaching the threshold. It is anticipated that in time, the operators will “get a feel” for how much change in TDG will occur as a result of opening or closing gates and it will be possible to hold the TDG around 118% or 119% or so. Once the operators have this down, instead of closing a gate entirely, it may only be necessary to close partially and vice versa for the opening process.

2009 Rocky Reach Operational Plan

for Total Dissolved Gas During Fish Spill Season

April 1 – August 31 (All spill between these dates is subject to the actions contained in this plan.)

Protocol

1. If tailrace TDG average is greater than 120% for the 6-hour average reduce spill by 3 kcfs monitor for 1 hour if the 6-hr average TDG >120%, reduce spill by another 2 kcfs monitor for 1 hour continue reducing spill by 2 kcfs until 6-hr average TDG is less than 120% for one full hour if after reducing spill to control TDG levels, TDG drops below 118% for one full hour, increase spill by 2 kcfs and monitor **

If you receive a call from RI advising that the RI forebay is out of compliance (greater than 115%) and the RR forebay is 115% or less, reduce spill by 3 kcfs. Two hours after reducing spill, call RI to determine what the RI forebay gas levels are. If still above 115%, reduce spill another 2 kcfs. If after reducing spill for this reason, the Rock Island forebay drops to less than 113%; Rock Island will call again and advise. At this point, increase back to the hourly spill volume target by increasing spill in the reverse order it was decreased. For example, if to bring the RI forebay back into compliance, it was necessary to reduce spill by a total of 5 kcfs, begin by increasing spill by 2 kcfs, wait two hours, and call RI to determine what the forebay TDG levels are. If TDG is still below 115%, increase spill by 3 kcfs (back to the target volume in this case). This will allow for a ramping effect, rather than an open/shut effect which could bump the Rock Island forebay TDG levels back out of compliance (>115%).

Appendix III

2009 Fish Spill Plan

for

Rocky Reach and Rock Island Dams

Final

2009 Fish Spill Plan

Rocky Reach and Rock Island Dams

Chelan PUD

Steve Hemstrom Public Utility District No. 1 of Chelan County Wenatchee, Washington

March 24, 2009

Introduction On June 21, 2004, the Federal Energy Regulatory Commission (FERC) licenses for Rocky Reach and Rock Island were amended to incorporate the respective Habitat Conservation Plans (HCP) into each Project license. In February 2009 Rocky Reach received a new 43-year Federal Energy Regulatory Commission (FERC) operating license, with the HCP incorporated. Fish spill operations in 2009 at Rocky Reach and Rock Island will be implemented by Chelan PUD (District) according to juvenile survival standards correlated Project spill levels and operations. Spill levels proposed by the District under provisions of the HCPs are summarized in Table 4 of this plan. Chelan PUD holds valid Incidental Take Statements (ITS) from NOAA Fisheries (NOAA) and the United States Fish and Wildlife Service (USFWS) for HCP fish spill operations at the Projects.

For yearling Chinook and steelhead at Rocky Reach in 2009, the District will operate the juvenile fish bypass (JFB) exclusively with no spill. For sockeye, the District will conduct a juvenile survival test to evaluate the experimental difference between day time and night time releases for tagged juvenile sockeye smolts, and the effects on Project survival for both groups of fish. The test will include running turbine units in best efficiency mode to evaluate differences in route-specific survival and Project survival with all available river flow passing through turbines. During the summer outmigration of subyearling Chinook, the District will spill 9% of day average river flow at Rocky Reach for a duration covering 95% of their outmigration.

At Rock Island Dam in 2009, the District will conduct a third HCP Project Survival for juvenile yearling Chinook, sockeye, and steelhead at a 10% Project spill level in the spring. Rock Island fish spill will increase to 20% upon onset of the summer outmigration of sub-yearling Chinook. Spill will remain the primary means of juvenile salmonid passage as directed in Section 5.4.1(a) of the Rock Island HCP. Spring and summer spill will cover 95% of the juvenile outmigration for steelhead, sockeye, yearling and subyearling Chinook.

Summer Fish Spill Operations in 2009 Juvenile run-timing information at Rocky Reach will be used to determine passage percentiles and the necessary spill duration for subyearling Chinook (0% to 95%). Daily fish counts from index sample periods at the juvenile collection facility, in combination with the University of Washington’s Program RealTime run forecaster, will be used to determine spill timing for subyearling Chinook. The Rock Island, juvenile bypass trap will provide smolt counts for spring and summer run-percentile estimates to determine when spill will start and end at Rock Island Dam.

Run-Timing Predictions in 2009 Since 2003, the University of Washington has provided the District with run-timing predictions for spring and summer out migrating salmon and steelhead using the Program RealTime run-time forecasting model. Program Real-Time provides daily forecasts and cumulative passage percentiles for steelhead, yearling Chinook, sockeye, and subyearling Chinook at both Rocky Reach and Rock Island. The program enables the District to better predict the date when a selected percentage of these species will arrive, or when a given percentage of any stock has passed (e.g. the 5% passage point for spring species at Rock

Island to trigger spring spill). The program utilizes daily fish counts from the juvenile sampling facility at Rocky Reach and the juvenile bypass trap at Rock Island. Estimates of the program’s forecast error in daily run projections will be calculated and displayed with the daily predictions at www.cbr.washington.edu/rt/rt.html.

Historic Run Timing Estimated historical run-times for each species at Rocky Reach and Rock Island are summarized in Table 2. At Rocky Reach, data is summarized from the juvenile bypass system, 2003-2008. The 2.5 percentile for sockeye migrants occurs around May 8 (range May 5 - May 12), and reaches the 97.5 percentile around June 5 (Table 2). The summer run (subyearling Chinook) generally begins the first week of June and reaches the 95th percentile sometime around August 6 (range July 24-August 21). Rock Island Dam smolt collections at the bypass trap from 1985 to 2008 indicate that the fifth percentile (5%) of the combined spring migrant run averages around April 21 (range April 13-25). The 97.5 percentile point for the spring migration usually occurs around June 16 (range June 3 - June 30) (Table 2). The subyearling Chinook outmigration at Rock Island begins on June 1 and reaches the 95th percentile by about August 13 (range August 5-August 29).

Table 2. Historic average run-time dates (range in parenthesis) at Rocky Reach and Rock Island dams. Rock Island based on data collected from 2004-2008. Rocky Reach is based on Index counts of smolts at the permanent juvenile bypass system, 1992-2008. (See footnote 1). Percentile Stock/species 2.5% 5% 95% 97.5%

Rocky Reach Sockeye 9-May 11-May 27-May 3-June (5/5 - 5/15) (5/8 – 5/17) (5/23 – 6/2) (5/28 – 6/8)

Subyearling Chinook 9-Jun 18-June 11-Aug 15-Aug (6/3 - 6/20) (6/8 - 6/24) (8/4 - 8/22) (7/24 - 8/15)

Rock Island Yearling Chinook 17-Apr 20-Apr 7-June 13-June (4/5 - 4/29) (4/8 - 4/30) (5/19 - 6/16) (5/28 - 6/24)

Steelhead 27-Apr 27-Apr 11-June 21-June (4/17 - 4/30) (4/20 - 5/7) (5/25 - 6/22) (6/3 - 7/2)

Sockeye 19-Apr 18-Apr 19-June 24-June (4/10 - 4/28) (4/12 - 5/1) (5/17 - 7/3) (5/24 - 8/4)

All Spring migrants 21-Apr 17-Apr 9-June 16-June (4/12 - 4/21) (4/13 - 4/25) (5/27-6/22) (6/3-6/30)

Subyearling Chinook 7-June 13-June 11-Aug 13-Aug (6/3 - 6/10) (6/6 - 6/23) (8/1 - 8/26) (8/5 - 8/29)

Rocky Reach

2009 Rocky Reach Index Sampling The District will operate the Rocky Reach JFB seven days per week in 2009 to obtain the necessary index samples for run timing analysis, and to collect fish for survival and passage route studies. For hours outside the “index sample hours (0800-1130 hours) a 20- minute sample will be taken at the start of each hour.

Sampling protocols at the JFB in 2009 will remain consistent with those used in 2008. Smolts will be sub-sampled daily from the bypass (Monday through Sunday) for four 30- minute “index periods” at 0800, 0900, 1000, and 1100 hours (Table 1). The sample target for each 30-minute period will be 350 fish combined for the spring migrating species, and 125 fish for summer migrating species (subyearling Chinook). If fish numbers are high in the first few minutes of a sampling period (300-350 fish), the sampling screen will be retracted and the number (collected) will be linearly expanded to the entire 30-minute period.

Table 1. Index sampling times and fish collection targets at the Rocky Reach juvenile fish bypass system in 2009.

0800 - 0830 hrs 30 min* 350 (spr) or 125 (sum) Mon-Sun 0900 - 0930 hrs 30 min* 350 (spr) or 125 (sum) Mon-Sun 1000 - 1030 hrs 30 min* 350 (spr) or 125 (sum) Mon-Sun 1100 - 1130 hrs 30 min* 350 (spr) or 125 (sum) Mon-Sun * Sample duration may be less than 30 minutes if fish numbers are met prior to that time Fish number will be proportionately expanded to account for Index samples shorter than 30 minutes

Rocky Reach 2009 Spring Spill In 2009, the District is proposing a juvenile sockeye survival test operating only the juvenile fish Bypass system, without designated fish spill. Unavoidable spill for reservoir headwater control may occur during the sockeye study at Rocky Reach in 2009. Information on this study proposal is summarized below. This study was approval by the HCP Coordinating Committee on February 24, 2009.

2009 Day/Night Release Study for Juvenile Sockeye Chelan PUD will conduct a survival study in 2009 at Rocky Reach to compare differences in reservoir and dam survival for acoustic tagged juvenile sockeye that are released into the river below Wells Dam during the day time, and during the night. The purpose of the test is to determine if a study bias exists by releasing tagged sockeye only during the day, thus exposing them to an increased predation rate that night time migrating run-of-river sockeye are not exposed to. A “study bias” is study design problem which may result in an inaccurate measurement of survival for tagged fish that does not represent actual survival for the run-of –river smolt population. A negative study bias may produce overall lower survival results for tagged fish than that seen by the run-at-large sockeye smolt population experiences because many non-tagged run-of-river sockeye smolts. Sockeye are

known to migrate through reservoirs and pass dams at night when sight predators (pikeminnow, bass, diving birds) are not active. The 2009 experimental design will determine if a differential survival effect is present for night vs. day migrating tagged sockeye smolts, and help to determine how study fish should be released in the future or how survival estimates should be compensated for the proportion of fish migrating at night. Hydroacoustic echo sounding will take place at Rocky Reach Dam during the study to determine the diel passage behavior of run-of-river, non-tagged sockeye smolts. During the study, the Rocky Reach powerhouse will be operated with turbine units dispatched and operated under best- efficiency settings. The goal of this study is to determine if significant differences exist for survival of day time and night time released test fish under consistent powerhouse turbine operations for the day and night treatment groups to determine the effects of predation on study fish and the time of day that these fish pass through the reservoir and the dam. During the test, sockeye smolts will have the options to pass through the juvenile bypass system (surface collector or bypass screens), or the powerhouse only.

Overview of Proposed Study Design for 2009 Sockeye Test Chelan PUD will conduct this study for 24 days in May using 12 day time releases and 12 night time releases of acoustic tagged sockeye smolts (See 200. Fish will be released 1000 ft. below Wells Dam. Rocky Reach turbines will be operated at best efficiency set points but will increase in total discharge, as necessary, as river flow increases. No fish spill will occur during this test, but unavoidable spill may occur if river flow increases above turbine capacity. Tagged sockeye should arrive and pass Rocky Reach dam in near equal proportions both day and night. This will allow help to determine how predation rates affect reservoir passage and dam passage survival under light and dark conditions. Information on route- specific passage efficiency and survival will be collected during both test and control conditions.

Rocky Reach 2009 Summer Spill Summer spill at Rocky Reach for subyearling Chinook will be 9% of day average river flow following completion of the juvenile sockeye survival test, sometime in the first week of June. Spill will continue through the 95 percentile passage point for the subyearling migrants3. The no-spill condition for the 2009 sockeye test will not be shortened by the potential early arrival of subyearling Chinook at Rocky Reach. Spill for subyearling Chinook may commence only after study requirements are met (all test fish are released upstream and all tags verified at downstream detection points) for the tagged sockeye. The guidelines for starting summer spill at Rocky Reach are as follows:

1. Summer spill will start upon verification that the spring sockeye study is complete by and all tagged sockeye have passed necessary detection points at the dam and downstream (likely sometime in the first week of June). Subyearling Chinook will be defined as any Chinook having a fork length from 75 mm to 150 mm.

2. Summer spill season will generally end no later than August 15, or when subyearling index counts from the juvenile collector are 0.3% or less of the cumulative run for three out of any five consecutive days (same protocol used in 2008) and Program RealTime shows the 95% passage percentile has been reached.

3 The HCP Coordinating Committee agrees that spill is intended for migrant subyearling Chinook (Chinook greater than 75 mm fork length).

Rock Island

Rock Island 2009 Spring Spill In 2009, under Section 5.3.3 of the Rock Island HCP, the District will re-evaluate Project Survival for yearling Chinook (as a representative spring species) under a 10% spill level. The 10% spill level will begin no later than April 17, and end after completion of the 10% spring spill study (generally sometime in the first week of June). The Rock Island bypass trap will be operated seven days per week by Chelan PUD personnel to provide daily juvenile index counts. The trap will operate from April 1 through August 31. Index counts will provide the basis for comparison to determine the start and end of seasonal spill periods. Guidelines to start and end the spring spill program at Rock Island are proposed as follows:

1. The Rock Island spring spill program will begin when the Rock Island daily passage index (expanded counts) exceeds 400 fish for more than 3 days (this corresponds to the historic 5% passage date), or no later than April 17, as outlined in Section 5.4.1. (a) Of the Rock Island HCP. Wenatchee River smolt trap counts (at Monitor) will be used to help validate a decision to start spring spill prior to April 17.

2. The Rock Island spring spill will end following completion of the 2009 yearling Chinook, sockeye and steelhead survival study, and after arrival of subyearling Chinook at the Project.

Rock Island 2009 Summer Spill Rock Island will spill 20% of the daily average river flow over 95% of the summer out migration. Daily sub-yearling Chinook samples at the bypass trap will provide the basis for decisions to the start and stop spill periods at Rock Island Dam. The proposed guidelines to start and stop the summer spill at Rock Island are outlined as follows:

1. Rock Island summer spill in 2009 will begin after completion of the spring survival study. The summer spill level will be 20% and continue for a duration covering 95 percent of the subyearling outmigration.

2. Spill will generally end no later than August 15th, or when subyearling counts from the Rock Island trap are 0.3% or less of the cumulative run total for any three out of five consecutive days (same protocol used in 2005-08).

Spill Shaping at Rocky Reach and Rock Island Table 4 shows the proposed fish spill percentages and hourly shaping of spill at Rock Island and Rocky Reach in 2009. The District will again shape spill volumes on a daily basis according to the observed diel passage of smolts at each project. The different

spill percentages, or spill blocks, are calculated by time such that the summation of water volume from all spill blocks within the day will equal the volume of water that would have been spilled under a constant, unshaped spill level (for instance 9% spill at Rocky Reach with no shaping). This spill strategy attempts to optimize spill water volume to maximize effectiveness for passing smolts. Spill shape will be consistent with shaping from 2003 through 2008. Table 5 summarizes juvenile outmigration dates, spill percentages and run-coverage for both Projects, and dates of operation for the Rocky Reach Juvenile Fish Bypass (JFB) in 2009.

Daily Spill Duration Time of Spill Project/Season Average Spill Levels (# of hours) Day Shape % Rocky Reach Spring None _ _ _ None (Chin 1, steelhead)

Rocky Reach *Day/Night Spring releases (sockeye) None No Spill Test - - None

High 4 0000-0400 12.5 Rock Island Med 2 0400-0600 10.0 Spring 10% Low 5 0600-1100 6.0 (all) Med 9 1100-2000 10.0 High 4 2000-0000 12.5 Med 1 0000-0100 9.0 Rocky Reach Low 6 0100-0700 6.0 Summer 9% Med 2 0700-0900 9.0 (subyearling Chins) High 6 0900-1500 12.0 Med 9 1500-0000 9.0 High 1 0000-0100 23.0 Rock Island Med 1 0100-0200 19.0 Summer 20% Low 8 0200-1000 15.0 (subyearling Chins ) Med 1 1000-1100 19.0 High 13 1100-0000 23.0

* No-Spill test is proposed but not yet approved by the HCP Coordinating Committee

Table 4. Spill percentages and hourly spill shaping for Rocky Reach and Rock Island in 2009.

Table 5. Summary of proposed spill percentages, approximate outmigration times and percent of run covered, and Rocky Reach JFB operation dates for 2009. Subyearling Steelhead Yearling Chinook Sockeye Rocky Reach Chinook Percent Spill 0 0 0 9% Percent of run 0 95% 0 0 covered w/spill (No Spill Test) (0% - 95%) ~ Run dates - - 5/5 - 6/10 6/1 - 8/6 Yes Yes Yes Yes RR JFB 4/1 – 8/31 4/1 – 8/31 4/1 – 8/31 4/1 – 8/31 Operating?

Subyearling Rock Island Steelhead Yearling Chinook Sockeye Chinook Percent Spill 10% 10% 10% 20% Percent of run 95% 95% 95% 95% covered w/spill (5% - 100%) (5% - 100%) (5% - 100%) (0% - 95%) ~ Run dates 4/17 - 7/12 4/19 - 7/15 4/25 - 7/21 6/1 - 8/11

Spill Program Communication The District’s fish spill coordinator will contact the HCP Coordinating Committee (HCPCC) not less than once per week when fish passage numbers indicate that specific triggers for starting or stopping spill are likely to occur in the immediate future. The District will also contact the HCPCC regarding any unforeseen issues that pertain to the spill program as the season progresses. Communications with the HCPCC will generally be made by email, conference calls, and scheduled meetings.

Appendix IV

Annual Maintenance Lists

for

Rocky Reach and Rock Island Fishways

2008/2009 ROCKY REACH ANNUAL FISH LADDER OVERHAUL

Central Maintenance Work

PM Work RRFW ANNUAL INSPECTION - DIVING RRFW GATE WORK - UNWATERING / WATERUP (Plant assist with OG gate installs and AWP trashracks removal) RRFW ATTRACTION WATER SYSTEM - CMM RRFW FLAP GATES - INSPECTION RRFW PICKETT, REGULATING & WING GATES RRFW TRAVELING SCREENS - INPSPECTIONS

Corrective Work RRFW AUX. WATER PIT PUMP- RELOCATE/REFURBISH

PM Work (Sluice gates are listed in order of priority) RRFW SLUICE GATE OP INSP - GROUP A - ANNUAL RRFW SLUICE GATE OP INSP - GROUP C - ANNUAL RRFW SLUICE GATE OP INSP - GROUP D - ANNUAL RRFW SLUICE GATE OP INSP - GROUP E - ANNUAL RRFW SLUICE GATE OP INSP - GROUP G - ANNUAL RRFW SLUICE GATE OP INSP - GROUP F - ANNUAL RRFW SLUICE GATE OP INSP - GROUP B - ANNUAL

Corrective Work RRFW MSE STILLINGWELLS C AND L - REMOVE (This eliminates valve rattle) RRFW MIDDLE SPILLWAY FISHWAY ENT. - REPLACE MOTORS RRFW CONTRACTOR ANTENNA MOUNT - VIBRATION RRFW COUNTING STATIONS - REMOVE RRFW SLUICE GATE D1-S4 STEM GUIDE – REPLACE

Rocky Reach Maintenance Work

PM Work RRFW FLAP GATE INDICATOR ROD-SEAL REPLACE (Rotator) RRFW OVERHAUL RRM (Considered to be a general support work order)

Corrective Work RRFW PICKETT BARRIER ELEC. HOIST STANCHION - INSTL RRFW CS-S1 AUX. WATER OPERATOR - REPLACE SHAFT RRFW ADULT EXIT POOL STILLING WELL - REMOVE RRFW FISH COUNTING BOARD BULKHEAD - INSTALL SEAL RRFW COLLECTION CHANNEL DIFFUSION CHAMBER G13 TIMBER RRFW COLLECTION CHANNEL DIFFUSION CHAMBER G15 TIMBER RRFW COLLECTION CHANNEL DIFFUSION CHAMBER G17 TIMBER RRFW COLLECTION CHANNEL DIFFUSION CHAMBER G21 TIMBER

Corrective Work RRFW PICKETT BARRIER STANCHION COMPONENTS – INSP RRFW WATER LEVEL INDICATION STILLWELL D – UPGRADE

Fishway Attendants Work RRFW ANNUAL INSPECTION- PUNCH LIST

2008 - 2009 ROCK ISLAND ANNUAL FISH LADDER OVERHAUL

LEFT BANK FISHWAY (8 DECEMBER TO 1 FEBRUARY 2009)

DRAIN, FLUSH, AND REPLACE OIL INSPECT ALL SILLS ON GATES; CHECK FOR ANY BAD EDGES REMOVE TRASH FROM UPPER AND LOWER CHANNELS THOROUGHLY INSPECT SHAFTS/SHEAVES ON gates L05 AND L06 OPEN gates L03 AND L04 PER FISHWAY ATTENDANT INSTRUCTION OPEN gate L02 PER FISHWAY ATTENDANT INSTRUCTION ENSURE STILLING WELLS ARE OPERATING PROPERLY COUNT STATION MCC INSPECTION/MAINTENANCE MOTOR TESTING AND VISUAL INSPECTION STILLING WELL MAINTENANCE/INSPECTION/CALIBRATION COUNT STATION CONTROL PANEL INSPECTION COUNT STATION LIGHTING INSPECTION COUNT STATION SUMP PUMP INSPECTION COUNT STATION EXHAUST FAN INSPECTION TEST AND INSPECTION OF THE HOISTS TEST AND CALIBRATE GATES CHECK LIMITS ON ALL GATES CHECK & CLEAN BRAKES ON M01. M11, & M12 (OR L01,L11, & L12) CHECK FISHLADDER AND AREA LIGHTING

MIDDLE FISHWAY (1 JANUARY TO 1 FEBRUARY 2009)

DRAIN, FLUSH, AND REPLACE OIL INSPECT AND REMOVE ACCUMULATED DEBRIS FROM THE FISHWAY CHANNEL INSPECT AND REMOVE ANY PLANTS OR TREES GROWING INSIDE OF FISH LADDER REMOVE ANY OLD FISH EQUIPMENT FROM FISH LADDER (CONTACT CHRIS KLINE IF YOU ARE NOT SURE) INSPECT SUBMERGED GATES AND GUIDES FOR DAMAGE AND MISSING PARTS INSPECT SUBMERGED GATES TO ENSURE PROPER OPERATION OVER THEIR ENTIRE OPERATING RANGE INSPECT DIFFUSION CHAMBERS, CONDUITS AND GRATINGS FOR DEBRIS, ACCUMULATION OF SILT, AND DAMAGE INSPECT STILLING WELLS FOR ACCUMULATION OF SILT INSPECTION OF ANY LEAKS INTO THE FISH LADDER INSPECTION OF DIFFUSION GRATING LOCATED IN THE LOWER END OF LADDER INSPECT ALL MOTOR OPERATED VALVES (MOVS 1 THROUGH 5) AND REPAIR AS NEEDED COUNT STATION MCC INSPECTION/MAINTENANCE MOTOR TESTING AND VISUAL INSPECTION STILLING WELL MAINTENANCE/INSPECTION/CALIBRATION COUNT STATION CONTROL PANEL INSPECTION COUNT STATION LIGHTING INSPECTION COUNT STATION SUMP PUMP INSPECTION COUNT STATION EXHAUST FAN INSPECTION TEST AND INSPECTION OF THE HOISTS TEST AND CALIBRATE GATES CHECK LIMITS ON ALL GATES CHECK & CLEAN BRAKES ON M01. M11, & M12 (OR L01,L11, & L12) CHECK FISHLADDER AND AREA LIGHTING

RIGHT BANK FISHWAY (1 DECMBER 2008 TO 1 MARCH 2009)

DRAIN, FLUSH, AND REPLACE OIL INSPECT AND REMOVE ACCUMULATED DEBRIS FROM THE FISHWAY CHANNEL INSPECT GATES AND GUIDES FOR DAMAGE AND MISSING PARTS INSPECT SUBMERGED GATES AND OPERATORS TO ENSURE PROPER OPERATION OVER THEIR ENTIRE OPERATING RANGE INSPECT DRAINAGE SYSTEMS FOR CLOGGING RIGHT BANK FISHWAY (CONTINUED) INSPECT STILLING WELLS FOR ACCUMULATION OF SILT INSPECT AND CLEAN FISH COUNTING ROOM COUNTING BOARD, INCLUDING LIGHT PANEL AND BACKBOARD INSPECT AND SERVICE THE TRAVELING SCREENS INSPECT AND SERVICE GATES THAT HAVE WIRE ROPE INSPECT ALL GATE SEALS; CHECK FOR ANY ROUGH EDGES CLEAN SUMPS FOR COUNTING STATION PUMPS INSPECT AND SERVICE SLUICE GATE STEMS AND STANDS INSPECT THE LOWER CHANNEL (MISSING BARS, ETC.) INSPECT WING GATE OPERATORS COUNT STATION MCC INSPECTION/MAINTENANCE MOTOR TESTING AND VISUAL INSPECTION STILLING WELL MAINTENANCE/INSPECTION/CALIBRATION COUNT STATION CONTROL PANEL INSPECTION COUNT STATION LIGHTING INSPECTION COUNT STATION SUMP PUMP INSPECTION COUNT STATION EXHAUST FAN INSPECTION TEST AND INSPECTION OF THE HOISTS AT COUNT STATION TEST AND CALIBRATE GATES CHECK LIMITS ON ALL GATES INSPECT AND TEST OPERATION OF FISH ELEVATOR INSPECT ATTRACTION WATER PUMPS/MOTORS AND ACCESSORIES CALIBRATE BUTTERFLY VALVE OPERATION CHECK FISHLADDER AND AREA LIGHTING