Reactivation of Lagoons 1 and 2 at the Diemer Filtration Plant


SCH Number
Public Agency
Metropolitan Water District of Southern California
Document Title
Reactivation of Lagoons 1 and 2 at the Diemer Filtration Plant
Document Type
NOE - Notice of Exemption
Document Description
Reactivation of two currently inactive sludge lagoons at the Diemer Filtration Plant. Proposed activities include the mechanical dewatering of sludge from active thickeners onsite and discharging the sludge into Lagoon 2 for drying. Lagoon 1 will be used to collect sludge if the mechanical equipment is unable to handle the amount of sludge generated onsite. Decant water from the mechanical equipment will then be pumped back to the supernatant pump station to be recycled to the plant influent.

Contact Information

Deirdre West
Agency Name
Metropolitan Water District of Southern California
Contact Types
Lead/Public Agency


Yorba Linda

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Section 15301
Reasons for Exemption
The project consist of the operation and minor alteration of existing public facilities involving no expansion of use beyond that existing at the time of the lead agency's determination.

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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