NOTICE OF INSIGNIFICANT PROJECT CHANGE
(Relocate Water Supply Pipeline)
COSUMNES POWER PLANT PROJECT
The Cosumnes Power Plant (CPP) project is a nominal 1000 megawatt (MW) natural gas-fired, combined-cycle electric generating facility located approximately 25 miles southeast of the City of Sacramento, in Sacramento County. The Sacramento Municipal Utility District (SMUD), project owner and operator, is proposing to construct the project in two 500 MW phases. The total project will be located on approximately 30-acres of an overall 2,480-acre owned by SMUD.
Phase 1 of the project was certified September 9, 2003, and commenced construction on October 31, 2003. SMUD will decide at a later date whether or not to seek approval to proceed with the construction of Phase 2.
On November 19, 2003, the Energy Commission staff received a petition from SMUD to modify the project description for the CPP project.
DESCRIPTION OF PROPOSED MODIFICATIONS: SMUD is seeking approval to:
In the current project description, the pipeline runs approximately one-half mile north from the CPP site to the existing Rancho Seco site. The pipeline will now run 200 feet northeast from the northeast corner of the CPP site to the Reservoir-Ranch Seco water supply line. The proposed pipeline modification will cause fewer environmental impacts by reducing:
- increase the pipe size of the water supply line from 12 inches to 20 inches, and
- relocate the water supply pipeline closer to the CPP site.
- the amount of construction in proximity to jurisdictional wetlands; and
- the construction near potential habitat for the endangered tadpole shrimp and species of special concern, such as the Burrowing Owl
Compared to the water supply pipeline route approved in CPP's Commission Decision, the proposed relocation will reduce the area of habitat disturbance and trenching by 90 percent.
Pursuant to section 1769(a)(2), Title 20, California Code of Regulations, Energy Commission approval for this change is not required if Energy Commission staff determines: 1) that there is no possibility that the modification may have a significant effect on the environment, and 2) that the modification will not result in a change or deletion of a condition of certification, or make changes that would cause the project not to comply with applicable laws, ordinances, regulations, or standards. Energy Commission staff has determined that the proposed modification to the water supply pipeline meets these criteria because:
- Existing conditions of certification are sufficient to cover the proposed change without changes to or deletion of a condition of certification;
- The relocation of the water supply pipeline will not have any significant effect on the environment;
- The relocation of the water supply pipeline will allow the project to remain in compliance with applicable laws, ordinances, regulations or standards; and
- The modification will benefit both SMUD and the public, by reducing equipment and construction costs and increasing plant reliability.
If you object to staff's determination, please submit the objection in writing to Ms. Jeri Zene Scott, Compliance Project Manager, at the address above, or by fax at (916) 654-3882, or via e-mail at email@example.com. If no objection is received by Wednesday, December 31, 2003 at 5:00 P.M., the requested change will be approved.
This Notice is also posted on the Energy Commission's website at www.energy.ca.gov/siting.
If you have questions, please contact Ms. Jeri Zene Scott at (916) 654-4228.
|Date On-Line: December 19, 2003||ENERGY RESOURCES CONSERVATION AND
TERRENCE O'BRIEN, Deputy Director
Systems Assessment & Facilities Siting Division
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