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CVPIA § 3406(b)(2) Water Operations on the Sacramento River

CVPIA § 3406(b)(2) Water Operations on the Sacramento River. Sacramento River Conservation Area Forum Technical Advisory Committee February 7, 2012. Central Valley Streams. Objective. Provide an overview of the CVPIA (b)(2) water program.

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CVPIA § 3406(b)(2) Water Operations on the Sacramento River

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  1. CVPIA §3406(b)(2) Water Operations on the Sacramento River Sacramento River Conservation Area Forum Technical Advisory Committee February 7, 2012

  2. Central Valley Streams

  3. Objective • Provide an overview of the CVPIA (b)(2) water program. • Provide background and relationship of the CVPIA Anadromous Fish Restoration Program (AFRP). • Management of (b)(2) water to improve salmonid habitat in the Sacramento River.

  4. Central Valley Improvement Act, 1992 Purposes • To protect, restore, and enhance fish, wildlife, and associated habitats in the Central Valley; • To address impacts of the CVP on fish, wildlife, and associated habitats; • To improve operational flexibility of the CVP

  5. CVPIA Section 3406 (b)(2) water • Purpose: A CVPIA program that dedicates and manages 800,000 AF annually of CVP water. • Authority: CVPIA in 1992. (b)(2) water is managed pursuant to conditions specified by the FWS after consultation with USBR, CDWR, and CDFG. • (b)(2) Agencies: FWS, USBR, in coordination with CDFG, CDWR, and NOAA fisheries.

  6. B2 water CVP controlled streams and Delta actions.

  7. ANADROMOUS FISH RESTORATION PROGRAM Central Valley Improvement Act, 1992 Develop and implement a program to double natural production of anadromous fish compared to the 1967-1991 average levels. AFRP Working Paper (1995) identified flows to achieve doubling goal in Central Valley rivers and streams. AFRP Plan (2001) recommended “reasonable” flow objectives for CVP streams that contribute toward doubling (restoration) goal.

  8. AFRP Summary of Flow-related Limiting Factors • Inadequate timing and/or magnitude of flow to provide suitable conditions for one or more life stage. • Water temperatures that exceed tolerances of one or more life stage.

  9. AFRP Recommended Flows (Final Restoration Plan) Upper mainstem Sacramento River • ACTION: • Implement a river flow regulation plan that balances carryover storage needs with instream flow needs consistent with the 1993 biological opinion for winter-run chinook salmon. • Implement a schedule for flow changes that avoids, to the extent controllable, dewatering redds and isolating or stranding juvenile anadromous salmonids. • Continue to maintain water temperatures at or below 56F from Keswick Dam to Bend Bridge to the extent controllable, consistent with the NMFS biological opinion and with SWRCB Order 90-5.

  10. AFRP Recommended Flows (Final Restoration Plan) Upper mainstem Sacramento River High priority * WY 2012 Shasta Reservoir Inflow through Jan 31: 970 TAF (Driest: 921 TAF – 1977)

  11. Fall-run Chinook – Sacramento River DRAFT 6 - 13 - 11 Goal = 230,000 (Final Restoration Plan) Estimated number of adult fall-run Chinook, Hatchery escapement only, 1952 - 1955 1967-1991 Average = 115,371 1992-2010 Average = 75,506 Figure 6. Estimated yearly natural production and in-river escapement for the entire mainstem Sacramento River adult fall-run Chinook salmon. 1952 - 1966 and 1992 - 2010 numbers are from CDFG Grand Tab (February 2, 2011). Baseline numbers (1967 - 1991) are from Mills and Fisher (CDFG, 1994).

  12. Implementation of (b)(2) Water Management • May 2003 DOI (b)(2) Decision, as clarified by December 2003 Interior Guidance Memo. • The Ninth Circuit’s January 2004 decision, and Judge Wanger’s September 2008 decision. • Continued use of (b)(1) re-operation.

  13. Implementation of (b)(2) Water Management • WY 2011 was classified as wet in both the Sacramento and San Joaquin basins. • End of September 2011 Shasta storage at 3.34 MAF. • In fall 2011, CVP operations were implemented consistent with both the NMFS BO for Salmonids and Sturgeon (June 2009) and FWS BO for Delta Smelt (December 2008).

  14. CVPIA Section 3406 (b)(2) water Technical background: • (b)(2) fish actions are based on forecasted operations, real-time monitoring, AFRP documents, published literature, IEP and DFG reports. • CVPIA’s mandate to double natural production of anadromous fish. • CVPIA’s instructions to “…provide flows of suitable quality, quantity, and timing to protect all life stages of anadromous fish...”

  15. Shasta Reservoir Storage (Oct 1, 2011 – Jan 31, 2012)

  16. Shasta Reservoir Inflow (Oct 1, 2011 – Jan 31, 2012)

  17. Keswick Reservoir Releases (Oct 1, 2011 – Jan 31, 2012)

  18. Shasta and Keswick Reservoirs – WY 2012 to date

  19. (b)(2) water used to augment Keswick release • December 16 – 31, 2011 • Keswick base case: ~4000-4500 cfs • Keswick releases: ~5000 cfs • January 1 – 31, 2012 • Keswick base case: ~3250-3500 cfs • Keswick releases : ~4000-5000 cfs

  20. Questions?

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