[California Energy Commission Letterhead]


On May 3, 2000, the California Energy Commission (Energy Commission) staff filed its Preliminary Staff Assessment (PSA) for the proposed Otay Mesa Generating Project (OMGP), a nominal 510 megawatt (MW), natural gas-fired electric generation facility. The OMGP will be located in western San Diego County, approximately 15 miles southeast of San Diego, California, and 1.5 miles north of the U.S./Mexico border. This PSA contains the California Energy Commission (Energy Commission) staff's evaluation of the Otay Mesa Generating Company, LLC's (the applicant) Application for Certification (AFC) (99-AFC-5) for the OMGP.

Eight technical areas, Air Quality, Biological Resources, Efficiency, Land Use, Reliability, Soil and Water Resources, Transmission System Engineering, and Visual Resources are incomplete. Given the information currently lacking in the air quality area, staff has elected to delay publishing this section in this PSA. Staff expects to publish a PSA section for this topic area in July 2000. The other seven incomplete areas have been published in this PSA, but staff has been unable to reach a conclusion due to missing information or unresolved issues. When the information is complete and the issues have been resolved for these areas, staff will be able to publish conclusions in the Final Staff Assessment (FSA). The OMGP electric generating plant and related facilities, such as the electric transmission line, natural gas pipeline and water lines, are under the Energy Commission's jurisdiction and cannot be constructed or operated without the Energy Commission's certification.

The Preliminary Staff Assessment is available on the Commission Web Site.


Staff is an independent party in the proceedings. This PSA is a staff document, and it examines engineering and environmental aspects of the project. The PSA contains analyses similar to those contained in Environmental Impact Reports required by the California Environmental Quality Act (CEQA). The PSA presents staff's conclusions, recommendations and proposed conditions that would apply to the design, construction, operation, and closure of the proposed facility, if the project was certified. Staff believes its analysis of the power plant is substantially complete for 14 technical areas. The areas of alternatives, cultural resources, land use, growth inducement, socioeconomics, traffic and transportation, visual resources, biological resources, soil and water resources, facility design, noise, geology and paleontology, transmission line safety and nuisance, worker safety and fire protection, waste, hazardous materials, and general conditions/compliance will be the subjects of workshop discussion on May 18, 19, and 26, 2000. Workshops for the areas of air quality, public health, transmission system engineering, reliability, and efficiency will be scheduled later. Staff's conclusions, recommendations and proposed conditions of certification for these topic areas may be modified based on those workshop discussions.


The PSA is available on the Energy Commission's Internet page at, www.energy.ca.gov/sitingcases/otaymesa/documents. Copies of the PSA are also available for public inspection at public libraries in the project area:

San Diego Public Library
920 E Street
Diego, CA62101
South Chula Vista Library
389 Orange Avenue
Chula Vista, CA 91911
Otay Mesa Branch
3003 Coronado Ave.
San Diego, CA 92154

Copies are also available at the Energy Commission's Library in Sacramento, the California State Library in Sacramento, and, as required by law, at public libraries in Los Angeles, San Francisco, Fresno, and Eureka. In addition, copies will be distributed to those public agencies that have or would have jurisdiction but for the Energy Commission's exclusive authority to certify power plants and related facilities. If you want additional information on how to obtain a copy of the PSA for review, please refer to the contacts.


Over the next few months, the Energy Commission will hold public workshops and conduct hearings on the proposal to determine whether the project should be approved for construction and operation and under what conditions. These workshops and hearings will provide the public as well as local, state and federal agencies the opportunity to ask questions about and provide input on the proposed project. If you are not currently receiving these notices and want to be placed on the mailing list, please contact Eileen Allen, Siting Project Manager, at (916) 654-4082, or email at eallen@energy.state.ca.us. Public workshops to discuss this PSA are scheduled for May 18 and 19, in Chula Vista, at the Chula Vista Library, beginning at 10:00 a.m. on both days. A public workshop is also scheduled for May 26, 2000 at the Energy Commission in Sacramento, beginning at 1:00 p.m. You may also provide any written comments you may have on the PSA to Eileen Allen, the Energy Commission's Siting Project Manager for the Otay Mesa Generating Project.

Persons requiring information on how to participate in the Energy Commission's review of the project should contact Roberta Mendonca, the Energy Commission's Public Adviser, at (916) 654-4489, (800) 822-6228, or email pao@energy.state.ca.us. Technical or scheduling questions should be directed to Eileen Allen, Siting Project Manager, at (916) 654-4082, or email at eallen@energy.state.ca.us. The status of the project and other relevant documents are available on the Energy Commission's Internet page at www.energy.ca.gov/sitingcases/otaymesa. News media inquiries should be directed to Assistant Executive Director, Claudia Chandler, at (916) 654-4989.

Energy Facilities Siting and
Environmental Protection Division

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