Robert A. Skinner Finished Water Reservoir - Preliminary and Final Design


SCH Number
Lead Agency
Metropolitan Water District of Southern California
Document Title
Robert A. Skinner Finished Water Reservoir - Preliminary and Final Design
Document Type
NOE - Notice of Exemption

Document Description
The Robert A. Skinner Finished Water Reservoir (FWR) has a 16-acre Hypalon floating cover. Small tears were discovered in the cover during routine inspection and maintenance. The tears were caused by delamination, or separation between the multiple layers of the Hypalon cover material. Since delamination was not observed during any prior inspections, it appears to have occurred recently and relatively quickly. As an interim measure, Metropolitan has reinforced suspect areas to prevent further damage. Due to the importance of the FWR to Skinner plant operations, Metropolitan is proposing to proceed promptly with preliminary and final design of a replacement cover. The existing floating cover was constructed prior to implementation of recently updated California Department of Health Services (CDHS) guidelines for design and functionality of floating covers. Upgrades are required for the replacement floating cover to comply with the new guidelines, and approval of the design by CDHS is required.

Contact Information
Wendy Picht
Metropolitan Water District of Southern California
P.O. Box 54153
Los Angeles, CA 90054

Phone : (213) 217-7256


Other Location Info
City/Community: Winchester

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301, 15302
Reasons for Exemption
The proposed project consists of modifying existing public facilities with negligible or no expansion of use beyond that existing at the time of the lead agency's determination, and the rehabilitation and replacement of existing equipment where older components are replaced by new components with the same purpose and capacity. In addition, the proposed action will not have a significant effect on the environment.

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 or via phone at (916) 445-0613.

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