2023 Coastal Outage


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
2023 Coastal Outage
Document Type
NOE - Notice of Exemption
Document Description
The Department of Water Resources (DWR) San Joaquin Field Division (SJFD) will shut down and dewater specific areas of the California Aqueduct coastal branch, in order to safely perform various maintenance activities (electrical, mechanical, corrosion protection, inspection, and cleaning). This yearly work is called the Coastal Outage. For the 2023 Coastal Outage, DEPP forebay, BLPP forebay, and POPP forebay will be dewatered. Water from DEPP will be discharged into a sediment basin. Water from POPP and BLPP will be discharged into an adjacent natural drainage. The 2023 Coastal Outage will begin in October and last until the end of November. Dewatering activities will take approximately 15 days per site to complete. The project benefits the public and private sector, which depends on the California Aqueduct for water delivery.

Contact Information

Elizabeth Maldonado
Agency Name
Department of Water Resources, San Joaquin Field Division
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency


Lost Hills
Kern, San Luis Obispo
Other Location Info
Coastal Branch: Devil's Den Pumping Plant (DEPP) (MP 14.86) (35.712430, -120.010314), Bluestone Pumping Plant (BLPP) (MP 19.05) (35.70762, -120.08365), and Polonio Pass Pumping Plant (POPP) (MP 26.54) (35.73100, -120.20756).

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301 (b)
Reasons for Exemption
This project consists of maintenance activities that support the function of the California Aqueduct and water delivery within the State Water Project.


Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

Download CSV New Search Print