Klamath Basin Area Office

Environmental Compliance & Biological Opinions

Klamath Project NEPA/Environmental Compliance

2024 Biological Opinions

• Biological Opinion on the Effects of the Proposed Klamath Project Operations Plan, Effective November 15, 2024, through October 31, 2029, on Federally Listed Threatened and Endangered Species (11/15/2024)

• Endangered Species Act Section 7(a)(2) Biological Opinion, and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Response for Klamath Project Operations from October 1, 2024 through September 30, 2029 (10/28/2024)

2024 Final Biological Assessment and Essential Fish Habitat Assessment

• The Effects of the Proposed Action to Operate the Klamath Project from October 1, 2024, through September 30, 2029 on Federally-Listed Threatened and Endangered Species (6/14/2024)

Addendum 1: Addendum to the Proposed Action included in the Bureau of Reclamation's June 14, 2024, Final Biological Assessment on The Effects of the Proposed Action to Operate the Klamath Project from October 1, 2024, through September 30, 2029, on Federally-Listed Threatened and Endangered Species.

• Transmittal Letter to the National Marine Fisheries Service (8/26/2024)

• Transmittal Memo to the U.S. Fish and Wildlife Service (8/26/2024)

2023 Biological Opinions

• 2023 USFWS Biological Opinion (01/13/2023-09/30/2023)

2019 Biological Opinions

• 2019 USFWS Biological Opinion (04/01/2019-09/30/2022)

• 2019 NMFS Biological Opinion (04/01/2019-03/31/2024)

2019/2020 Interim Operations Plan - Biological Opinions

An electronic version of both the U.S. Fish and Wildlife Service’s April 20, 2020, Biological Opinion on the Effects of the Proposed Interim Klamath Project Operations Plan, effective April 1, 2020, through September 30, 2022, on the Lost River Sucker and the Shortnose Sucker (TAILS # 08EKLA00-2020-F-0059) and the National Marine Fisheries Service’s April 13, 2020, letter stating the Bureau of Reclamation’s 2020 Interim Operations Plan is consistent with their analysis in the Endangered Species Act Section 7(a)(2) Biological Opinion, and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Response for Klamath Project Operations from April 1, 2019 through March 31, 2024, can be provided upon request. For more information, please contact Josh Easter (jeaster@usbr.gov) or Mike Neuman (mneuman@usbr.gov).

2019 Final Environmental Assessment and Finding of No Significant Impact

• National Environmental Policy Act— Environmental Assessment Implementation of Klamath Project Operating Procedures 2020-2023 Klamath Project, Oregon/California Interior Region 10 California Great Basin CGB-EA-2020-018 (4/1/2020) and Finding of No Significant Impact Implementation of Klamath Project Operating Procedures 2020-2023 Oregon and California CGB-FONSI-2020-018 (4/22/2020).

2019 Final Biological Assessment

• 2018 Biological Assessment (12/21/2018)
• 2018 Biological Assessment Appendices (12/21/2018)

ADDENDUM #1

• Amended Transmittal Memorandum to NMFS (02/15/2019)
• Amended Transmittal Letter to USFWS (02/15/2019)

• 2018 Biological Assessment modified Part 4 (02/15/2019)
• 2018 Amended Biological Assessment Appendix 4 (02/15/2019)
• 2018 Modified Biological Assessment Part 8 Tables (02/15/2019)

ADDENDUM #2

• Essential Fish Habitat (Transmittal Letter and Assessment) (03/25/2018)

ADDENDUM #3

• Letter to Fish and Wildlife Service (03/25/2018)
• Letter to National Marine Fisheries Service (03/25/2018)

2013 Biological Opinion

• 2013 Klamath Project Biological Opinion (PDF - 8.87 MB)
• Signed Transmittal Letter for 2013 Biological Opinion (PDF - 151 KB)
• 2012 Biological Assessment
• Assessment (PDF - 7.7 MB)
• Appendices (PDF - 6.63 MB)
• Letters: NMFS (PDF - 252 KB)
• USFWS (PDF - 364 KB)
• Endangered Species Information
• U.S. Fish and Wildlife Service
• National Marine Fisheries Service

Annual Monitoring Reports

• 2020 Annual Monitoring Report
• 2021 Annual Monitoring Report
• 2022 Annual Monitoring Report

Past Klamath Project Annual Operations Plan