COLUMBIA BASIN WATER MANAGEMENT

1. COLUMBIA BASIN WATER MANAGEMENT

4. Corps Northwestern Division Organization

5. COLUMBIA BASIN WATER MANAGEMENT DIVISION PORTLAND DISTRICT SEATTLE DISTRICT WALLA WALLA DISTRICT • Division focus is on system and mainstem aspects • District focus is on tributaries and technical support • Functions as an interdependent regional team • Well integrated with other functions like Emergency Management for crisis response

6. HYDROLOGIC ENGINEERING AND POWER BRANCH COLUMBIA BASIN WATER MANAGEMENT DIVISION RESERVOIR CONTROL CENTER • Hydrologic Engineering • Flood Risk Management • Modeling and Forecasting • Water Control Data System • Hydropower • Operating Plans • Columbia Treaty • PNCA • System Analysis and Studies • Implement Annual Operating Plans • Flood Control • Fishery • Hydroelectric • Columbia Treaty • Real Time Operations

7. RESERVOIR CONTROL CENTER RESERVOIR REGULATION UNIT WATER QUALITY TEAM HYDROPOWER COORDINATION FISH TEAM

8. RESERVOIR CONTROL RESPONSIBILITIES • Reservoir Regulation Unit: • Real-time operation and coordination of Columbia and Snake Rivers.  • Operation for Flood control, Fish and Wildlife, Power, Irrigation, Navigation, Recreation, Treaty, etc. • Water Quality Team: • Command and control of Total Dissolved Gas Program • BiOp consultation, Technical Management Team (TMT), Programmatic/regulatory review and coordination, modeling • Fishery Team: • Real-time fishery operations, TMT support, ESA consultation • Fish Passage Plan and anadromous fish evaluation program • Hydropower Coordination: • Real-time outage scheduling, maintenance scheduling for planning, integration of transmission and other outages • Hourly coordination for Mid-Columbia projects • Corps/BPA/Reclamation Joint Operating Committee support

9. OPERATIONS TIMELINE OPERATE TO STURGEON FLOW OBJECTIVES MINIMUM FLOW OR FLOOD CONTROL OPERATE TO SALMON FLOW OBJECTIVES L I B B Y POWER DRAFT BURBOT FLOW REQUEST OPERATE TO BULL TROUT FLOW OBJECTIVES BURBOT FLOW REQUEST A F L A B L E L N S I Winter Flood Control Elevation Refill Full for Summer Recreation Draft To Winter Flood Control Elevation H H U O N R G S R E Y OPERATE TO MCNARY SPRING FLOW OBJECTIVES MINIMUM FLOW OR FLOOD CONTROL OPERATE TO MCNARY SUMMER FLOW OBJECTIVES OPERATE TO CHUM FLOW OBJECTIVES OPERATE TO MCNARY SPRING FLOW OBJECTIVES OPERATE TO MCNARY SUMMER FLOW OBJECTIVES Variable Draft Limits (Fish VECC) MINIMUM FLOW FOR COLUMBIA FALLS OPERATE TO CHUM FLOW OBJECTIVES Variable Draft limits (Fish VECC) OPERATE TO PRIEST RAPIDS FLOW OBJECTIVES D W O R S H A K REFILL FOR KOKANEE OPERATE TO VERNITA BAR FLOW OBJECTIVES OPERATE TO VERNITA BAR FLOW OBJECTIVES OPERATE TO LOWER GRANITE SPRING FLOW OBJECTIVES OPERATE TO LOWER GRANITE SUMMER FLOW OBJECTIVES MINIMUM FLOW OR FLOOD CONTROL MINIMUM FLOW OR FLOOD CONTROL JAN MAY OCT NOV FEB MAR APR JUN JUL AUG SEP DEC Winter Flood Control Elevation G C R O A U N L D E E

10. HYDROLOGIC ENGINEERING AND • POWER BRANCH RESPONSIBILITIES • Hydropower Planning and Operations Team: • Columbia River Treaty • Pacific Northwest Coordination Agreement (PNCA) • System analysis and studies • Hydrologic Engineering Team: • Flood risk management planning and operations • Hydrologic modeling and forecasting • Water Control Data System • Quality assurance

11. Water Control Data • Water management data collected and stored for approximately 1,000 different locations in Columbia Basin • Data includes reservoir data, streamflow, precipitation, snowpack, water quality, etc. • Approximately 25,000 data values per hour of incoming data go into database shared by all offices • Extensive websites and reports to share information with stakeholders

12. CHALLENGES • Managing increasingly constrained system to meet multiple competing uses • Extensive (growing) coordination and reporting requirements • Operating within constrained budget environment with smaller staff

13. GRAND COULEE DAM • Initial Project and Powerhouse completed in 1942 • Total gross storage = 9107.4 KAF • Nameplate capacity = 6,494 MW

14. LIBBY • Initial Project and Powerhouse completed in 1976, unit 5 was installed in 1984 • Total gross storage = 5869.4 KAF • Nameplate capacity = 525 MW

15. DWORSHAK • Initial Project and Powerhouse completed in 1973 • Total gross storage = 3468 KAF • Nameplate capacity = 400 MW

16. HUNGRY HORSE • Initial Project and Powerhouse completed in 1953 • Total gross storage = 3467.2 KAF • Nameplate capacity = 285 MW

17. JOHN DAY DAM • Initial Project and Powerhouse completed in 1971 • Total gross storage = 2523.9 KAF • Nameplate capacity = 2160 MW

18. THE DALLES DAM • Initial Project and Powerhouse completed in 1960, additional units completed in 1973 • Total gross storage = 330 KAF • Nameplate capacity = 1696 MW

19. Bonneville Dam Bonneville 2 Spillway Bonneville 1 19

20. Duncan and Arrow Treaty Non-Treaty Generator Dam CompletedStorage Storage Capacity Height DUNCAN 1967 1.4 Maf None None 130 ft. ARROW 1968 7.1 Maf .25 Maf 185 MW 170 ft. Duncan Arrow Lake Keenleyside Dam

21. Mica and Libby Treaty Non-Treaty Installed Hydraulic Dam CompletedStorage Storage Capacity Capacity___Height MICA 1973 7.0 Maf 5.0 Maf 1740 MW 40 KCFS 650 ft. LIBBY 1973 5.0 Maf None 604 MW 25 KCFS 370 ft. Kinbasket Lake Mica KoocanusaLake Libby

22. Questions?