California Central Valley Water Operations: Biological Opinion Actions

Annual Review Schedule

• NMFS Response to Reclamation’s proposed modification to Annual Review Schedule (June 30, 2016)
• Bureau of Reclamation's proposed modification to Annual Review Schedule (April 25, 2016)

Central Valley Project (CVP) Reservoir Operations Forecasts

• April 2019: Bureau of Reclamation forecast (April 16, 2019)
• March 2019: Bureau of Reclamation forecast (March 13, 2019) and NMFS response (March 15, 2019)
• February 2019: Bureau of Reclamation Forecast (February 15, 2019) and NMFS Response (February 19. 2019)
• April 2018: Bureau of Reclamation Forecast (April 18, 2018)
• March 2018: Bureau of Reclamation Forecast (March 19, 2018) and NMFS Response (March 28, 2018)
• February 2018: Bureau of Reclamation Forecast (February 28, 2018) and NMFS Response (February 28, 2018); Bureau of Reclamation Forecast (February 14, 2018) and NMFS Response (February 16, 2018)
• March 2017: Bureau of Reclamation Forecast (March 17, 2017) and NMFS Response (March 21, 2017)
• March 2016: Bureau of Reclamation Forecast (March 25, 2016) and NMFS Response (March 31, 2016); Bureau of Reclamation Forecast (March 15, 2016) and NMFS Response (March 18, 2016)
• February 2015: Bureau of Reclamation forecast (February 20, 2015) and NMFS Response (February 27, 2015)
• April 2014: Bureau of Reclamation Supplemental Forecast (April 18, 2014) and NMFS Response (April 18, 2014)
• February 2014: Bureau of Reclamation forecast (February 20, 2015) and NMFS Response to Reclamation Forecast (February 20, 2014)

Sacramento River Temperature Management Plan (TMP)

• 2019: Bureau of Reclamation's Sacramento River TMP (May 13, 2019) and NMFS concurrence (May 15, 2019)
• 2018: Bureau of Reclamation's Sacramento River TMP (May 11, 2018) and NMFS Concurrence (May 15, 2018)
• 2017: Bureau of Reclamation's Sacramento River TMP (May 23, 2017) and NMFS concurrence (June 1, 2017)
• 2016: Bureau of Reclamation's Sacramento River TMP (June 27, 2016) and NMFS concurrence (June 28, 2016)
• 2015: Bureau of Reclamation's request for contingency plan and Sacramento River TMP for July - Nov 2015 (June 25, 2015) and NMFS Determinations on TUC Petition and Sacramento River TMP - (July 1, 2015)
• NMFS concurrence on Keswick flow release in June - June 17, 2016
• NMFS Determination on the revised Shasta TMP (September 28, 2015)
• Bureau of Reclamation's request for modified Shasta TMP (September 8, 2015)

Lower Klamath River Flow Augmentation

• 2016: Reclamation's request to implement the 2016 Lower Klamath River Late-Summer Flow Augmentation (August 22, 2016) and NMFS’ response (August 24, 2016)
• 2015: Bureau of Reclamation's request for Lower Klamath River 2015 Augmentation Flows (August 14, 2015) and NMFS’ response (August 20, 2015)

Juvenile Production Estimates (JPE) for Sacramento River Winter-run Chinook Salmon

NMFS and CDFW Winter-Run JPE

• Brood year 2024 - January 17, 2025

NMFS Winter-Run JPE

• Brood year 2023 - January 12, 2024
• Brood year 2022 - January 20, 2023
• Brood year 2021 - January 20, 2022
• Brood year 2020 - January 25, 2021
• Brood year 2019 - March 27, 2020
• Brood year 2019 - February 3, 2020
• Brood year 2018 - February 13, 2019
• Brood year 2017 - January 29, 2018
• Brood Year 2016 - February 3, 2017
• Brood Year 2015 - January 28, 2016
• Brood year 2014 - January 16, 2015
• Brood year 2013 - February 21, 2014

Rapid Genetic Analysis for Juvenile Chinook Salmon Salvaged at CVP and SWP

• 2020: Reclamation's request to implement rapid genetic analysis in WY 2020 (December 18, 2019) and NMFS’ Response (December 20, 2019)
• 2019: Reclamation's request to implement rapid genetic analysis in WY 2019 (November 17, 2018) and NMFS’ Response (December 17, 2018)
• 2018: Reclamation's request to implement rapid genetic analysis in WY 2018 (November 17, 2017) and NMFS’ response (December 18, 2017)
• 2017: Reclamation's request to implement rapid genetic analysis in WY 2017 (October 20, 2016) and NMFS’ response (November 21, 2016)

Old and Middle River Flow Management Actions

• FAQ: NMFS 2009 Biological Opinion January 1st Old and Middle River (OMR) Requirement
• NMFS determinations regarding OMR flow management & WIN Act section 4002 - March 7, 2018
• NMFS determinations regarding OMR flow management & WIN Act section 4002 - March 2, 2018
• NMFS Determination on OMR Flexibilities - February 10, 2015
• Reclamation's request for NMFS concurrence on OMR flexibilities - February 9, 2015
• NMFS Reaffirms January 1st Onset of OMR Flow Management for 2015 - December 30, 2014
• NMFS response to Reclamation's OMR Index Demonstration Project - February 27, 2014

San Joaquin River Inflow to Export Ratio

• Clarification of San Joaquin I-E Ratio Flood Condition Offramp - May 1, 2017
• NMFS Determination on San Joaquin river IE flex - April 14, 2016
• Bureau of Reclamation's request for NMFS concurrence on flex of San Joaquin River IE ratio - April 12, 2016
• NMFS response to San Joaquin River inflow-to-export ratio - February 7, 2014

Drought Contingency Plans and Strategies

• Drought Conditions Force Difficult Management Decisions For Sacramento River Temperatures (06/16/15)
• State, Federal Agencies and Sacramento River Settlement Contractors Agree on Framework for Water Ops in 4th Year of Drought
• Graphic - drought effects on juvenile winter-run Chinook salmon
• Fish Agencies presentation to the State Water Board - November 18, 2014
• NMFS response to BOR Transfers and D-1641 modifications to DOP - October 3, 2014
• NMFS response to Drought Operations Plan letter and Enclosure - April 8, 2014
• Bureau of Reclamation request and NMFS Concurrence on Operations beginning April 1, 2014
• DCC Gate Opening: Reclamation's request for DCC gate opening (December 2, 2015) and NMFS’ response (December 4, 2015)
• Contingency Plans:
  • May 2015: Reclamation's contingency plan for July through November 2015 (May 18, 2015)
  • March 2015: Reclamation's contingency plan for April through September 2015 (March 24, 2015), Project Description, Biological Review and NMFS’ Determination on Contingency Plan and TUC Petition (March 27, 2015)
  • January 2015: Reclamation's contingency plan for February and March 2015 (January 27, 2015), Project Description, Supporting Information and NMFS’ Determination on Drought Contingency Plan and TUC Petition (January 29, 2015)
  • March 2014:
    • NMFS March Contingency Plan Response letter and Enclosures Change (March 19, 2014)
    • NMFS March Contingency Plan Response letter and Enclosures (March 14, 2014)
    • NMFS March Contingency Plan Response letter and Enclosures (February 28, 2014)
  • January 2014: NMFS Determination on Drought Contingency Plan and TUC Petition (January 31, 2014)

Joint Stipulation Regarding CVP and SWP Operations

• Stipulation Status Report - October 15, 2012
• Results of Joint Stipulation Agreement: Briefing Sheet (June 2012)
• Results of Joint Stipulation Agreement: Background (June 2012)
• NMFS determination on May 11, 2012
• NMFS Determination on May 4, 2012
• NMFS Determination on April 27, 2012
• NMFS Determination on April 12, 2012
• NMFS Determination for Operations per Joint Stipulation During April 8-14, 2012
• NMFS Determination for Operations per Joint Stipulation During April 1-7, 2012
• NMFS Technical Memorandum to Guide Adaptive Management of OMR during April and May 2012
• Erratum for 3.29.2012 Briefing on NMFS OMR Technical Memorandum
• 3.29.2012 Briefing on NMFS OMR Technical Memorandum
• Additional HYDRO results referred to in Attachment 2B of the Technical Memorandum
• Joint Stipulation Regarding South Delta Operations During April and May of 2012 (Issued: January 19, 2012)

More Information

• California Central Valley Office
• Central Valley Water Operations
• Biological Opinion for Long-term Operations of the Central Valley Project and State Water Project
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