Diversion Dam Maintenance Dredging, Rio Bravo Hydroelectric Project, FERC No. 4129


SCH Number
Lead Agency
Olcese Water District
Document Title
Diversion Dam Maintenance Dredging, Rio Bravo Hydroelectric Project, FERC No. 4129
Document Type
NOE - Notice of Exemption

Document Description
Releases of sediment in upstream non-project facilities have impacted operations since the Facility became operational in 1989. Sand has been entering the intake and canal system and settling in the canal and forebay resulting in an operational capacity reduction from 1600 cubic feet per second (cfs) design to about 800 cfs. Approximately 70,000 cubic yards (CY) of sand and sediment has built up behind the project diversion dam. These materials have deleteriously restricted flow and caused recurrent repair costs and damage to turbine blades, shaft seals, generator coolers, trash rakes, and coatings. Maintenance dredging (the Project) is necessary to remove the sands and sediment that have accumulated from other hydroelectric projects discharges upstream of the Facility.

Contact Information
James L. Nickel
Olcese Water District
1415 18th Street, #307
Bakersfield, CA 93301

Phone : (661) 872-5060



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301, 15304(g) - Class 1(b), 4
Reasons for Exemption
Operation, repair, maintenanc, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographical features, including negligible or no expansion of use beyond that existing at the time of the lead agency's determination. Minor public or private alterations in the condition of land, water, and/or vegetation which do not involve removal of healthy, mature, scenic trees except for forestry and agricultural purposes.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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