Authorization of the Purchase of a Demonstration-Scale Reverse Osmosis System


SCH Number
Public Agency
Metropolitan Water District of Southern California
Document Title
Authorization of the Purchase of a Demonstration-Scale Reverse Osmosis System
Document Type
NOE - Notice of Exemption
Document Description
The Metropolitan Water District of Southern California (Metropolitan) proposes to authorize the purchase of a demonstration-scale reverse osmosis system. A demonstration-scale reverse osmosis system would enable large-diameter (up to 17 inches in diameter and 60 inches long) reverse osmosis elements to be evaluated. Large-diameter reverse osmosis elements are one option to lower the cost of desalinating Colorado River water and other water sources. In order to fully evaluate the potential performance and economic advantage of these large-diameter reverse osmosis elements, a demonstration-scale system capable of testing these elements at 85 percent or greater water recovery is needed.

Contact Information

Delaine Shane
Agency Name
Metropolitan Water District of Southern California
Contact Types
Lead/Public Agency


La Verne
Los Angeles

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
The proposed action involves the funding, design and minor alterations of existing public facilities, along with the installation of new equipment and construction of minor appurtenant structures with negligible or no expansion of use and no possibility of significantly impacting the physical environment. The proposed action also involves basic data collection and resource evaluation activities that do no result in a serious or major disturbance to an environmental resource. This may be strictly for information gathering purposes, or as part of a study leading to an action, which a public agency has not yet approved, adopted, or funded. In addition, this proposed action involves minor modifications in the condition of land and/or vegetation that do not involve removal of healthy, mature, scenic trees.

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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