2018 Coastal Outage


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
2018 Coastal Outage
Document Type
NOE - Notice of Exemption
Document Description
DWR San Joaquin Field Division performs yearly maintenance to the SWP. This requires that specific portions of the California Aqueduct (CAAQ) coastal branch be shut down and emptied of all water, so that SJFD personnel can safely perform the various maintenance activities (electrical, mechanical, corrosion protection, inspection). This work, known as the 2018 Coastal Outage, will require the dewatering of the Polonio Pass Pumping Plant forebay, Vault 26.99, and Vault 27.47. Water from all 3 sites will be discharged into an adjacent natural drainage. The 2018 Coastal Outage will begin on October 29, 2018 and end November 21, 2018. However, dewatering activities will begin Oct 15, 2018 and will take approx 10-14 days to complete.

Contact Information

Juan Arellano
Agency Name
California Department of Water Resources
Contact Types
Lead/Public Agency


San Luis Obispo
Other Location Info
Lost Hills; Coastal Branch: MP 26.54 (Polonio Pass Pumping Plant), Vault 26.99, Vault 27.47

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
This project consists of maintenance activities that support the function of the CAAQ and water delivery within the State Water Project.

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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