Big Creek Nos. 1 and 2 Hydroelectric Project (Project)
Federal Energy Regulatory Commission (FERC) Project No. 2175
Applicant: Southern California Edison (SCE)
FERC License Expiration Date: February 28, 2009
Water Quality Certification Status: Final Issued - May 31, 2019
Water Body: Big Creek, Balsam Creek, and Ely Creek
FERC Licensing Processes: Alternative Licensing Process (ALP)
The Big Creek Nos. 1 and 2 Hydroelectric Project (Project) is one of seven FERC-licensed projects that are part of a hydroelectric system owned and operated by Southern California Edison (SCE), and referred to collectively as the Big Creek Hydroelectric System. The Project is located on Big Creek in Fresno County, and occupies approximately 2,018 acres of national forest land administered by the United States Forest Service. Project facilities were constructed between 1913 and 1925 and consist of five concrete dams (Big Creek Dam 4 and Huntington Lake Dams 1, 2, 3, and 4), one major reservoir on Big Creek (Huntington Lake), three smaller diversion structures on streams tributary to Big Creek, several unlined conveyance tunnels and steel penstocks, 10 construction adits, and two powerhouses (Big Creek Powerhouses No. 1 and No. 2) with a total of eight generating units and an authorized generating capacity of 150.15 megawatts (MW).
Big Creek No. 1 Powerhouse uses water from Huntington Lake and discharges into the Dam 4 impoundment on Big Creek. Big Creek Powerhouse No. 2 receives water from the Dam 4 impoundment and discharges to the Dam 5 impoundment on Big Creek (Big Creek Nos. 2A, 8, and Eastwood Hydroelectric Project), FERC Project No. 67).
SCE proposes to continue operation of the Big Creek Nos.1 and 2 Hydroelectric Project without major modification, but has collaborated with involved stakeholders and resource and regulatory agency staff throughout the relicensing process to develop a range of environmental protection, mitigation, and enhancement measures for the Project. These measures are described in the Big Creek Alternative Licensing Process (ALP) Hydroelectric Projects Settlement Agreement (Settlement Agreement), which establishes certain obligations for the protection, mitigation, and enhancement of environmental resources affected by the Project once a new hydropower license is issued by FERC. SCE has requested that FERC and the State Water Board incorporate some provisions of the Settlement Agreement into the new Project license and water quality certification.
Post-Storm Dam 5 Emergency Sediment and Debris Removal Project
- Emergency Water Quality Certification for the Post-Storm Dam 5 Emergency Sediment and Debris Removal Project – November 22, 2021
- CEQA Notice of Exemption for the Post-Storm Dam 5 Emergency Sediment and Debris Removal Project – November 22, 2021
- Appendix A – Programs and Measures Implemented by SCE to Reduce Overall Greenhouse Gas Emissions in California
- Appendix B – Response to Comments
- Notice of Determination
- Draft Water Quality Certification for the Six Big Creek Hydroelectric Projects (FERC Project Nos. 67, 120, 2085, 2086, 2174, and 2175)
- Draft CEQA Supplement for the Six Big Creek Hydroelectric Projects (FERC Project Nos. 67, 120, 2085, 2086, 2174, and 2175)
- Notice of Completion
National Environmental Policy Act
- Draft Environmental Impact Statement (DEIS) for the Big Creek ALP Projects (FERC Nos. 67, 120, 2085, and 2175)
- Final Environmental Impact Statement (FEIS) for the Big Creek ALP Projects (FERC Nos. 67, 120, 2085, and 2175)
Big Creek ALP Hydroelectric Projects Settlement Agreement
Big Creek Dam No. 4 Low-Level Outlet Repair and Dam Resurfacing Project