Aliso Creek Emergency Sewer

4 Documents in Project


SCH Number
Lead Agency
Aliso Water Management Agency
Document Title
Aliso Creek Emergency Sewer
Document Type
NOD - Notice of Determination
Document Description
The Aliso Water Management Agency (AWMA) and the Moulton Niguel Water District (MNWD) are proposing to improve its existing pipeline infrastructure along Aliso Creek within the Aliso/Wood Canyon Wilderness Park. Existing buried pipelines along the east bank of the creek can convey sewage to and sludge from the AWMA Coastal Treatment Plant located near the south boundary of the Park. These pipelines have become vulnerable to exposure due to erosion along the watershed; on occasion these pipelines have ruptured and spilled into the adjacent Creek. The proposed project will install three pipelines along the west side of the creek: a replacement sewer, a replacement sludge force main and a new reclaimed water pipeline. The pipeline portion of the project has two purposes: to replace and relocate existing piping to a place that is less vulnerable to failure and to allow for further distribution of reclaimed water produced at the Coastal Treatment Plant. The size of the replacement sewer is being increased beyond its curent size. This size increase is proposed to provide storage for potential emergency sewage overflows from the MNWD Alicia Parkway Lift Station.

Contact Information

Brian Peck
Agency Name
Aliso Water Management Agency
Contact Types
Lead/Public Agency


Laguna Niguel
Cross Streets
Aliso Creek Road and Alicia Parkway
Total Acres
Wood Canyon Elementary

Notice of Determination

Approving Agency
Aliso Water Management Agency
Approving Agency Role
Lead Agency
Approved On


(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

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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