Riverside-Corona Feeder Project

10 Documents in Project


SCH Number
Lead Agency
Western Municipal Water District
Document Title
Riverside-Corona Feeder Project
Document Type
NOD - Notice of Determination
Project Applicant
Western Municipal Water District

Document Description
An interconnection with WMWD-Main System to deliver treated Metropolitan Water District (MWD) water to the Arlington Desalter distribution system. The newly built La Sierra Pipeline, whose original purpose was to bring Arlington Desalter water into \/\/MWD Main System, has been configured to reverse flow through the La Sierra Pipeline bringing water from the WMWD Main System's Mills Gravity Line (MGL) into the Arlington Desalter distribution pipeline. A Cla-Val has been installed at the Sterling Pump Station that reduces the pressure of MGL water at a flow rate of 2,500 - 7,500 gpm. MGL water is chloraminated, and thus will undergo break point chlorination to convert to free chlorine to be compatible with the other sources in the Arlington distribution system. A 3,000-gallon liquid sodium hypochlorite (12.5%) tank will be used to supply the breakpoint disinfection.

Contact Information
Steven J. Williams
State Water Resources Control Board
1350 Front Street, Room 2050
San Diego, CA 92101

Phone : (619) 525-4159


Other Location Info
Sterling Avenue just outside of the Arlington Desalter facility

Notice of Determination

Approving Agency
State Water Resources Control Board
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
This is to certify that the record of permit issuance for the Project is available to the general public at the State Water Board, Division of Drinking Water District office noted above. The EIR/ELS and amendments are available from the lead agency.


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


Notice of Determination
2003031121_20191113 signatures WMWD Arlington 3   PDF 1273 K

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.

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