Castaic Conduit Bypass Pipeline

2 Documents in Project


SCH Number
Lead Agency
Castaic Lake Water Agency
Document Title
Castaic Conduit Bypass Pipeline
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Document Description
Castaic Lake Water Agency's (CLWA) two existing treatment plants, the Earl Schmidt Filtration Plant and the Rio Vista Water Treatment Plant, are connected through a series of transmission mains. The majority of these transmission mains are 54 inches in diameter and larger. However, an approximately 7,565-foot portion of the existing transmission system, known as the Castaic Conduit Pipeline, is only 39 inches in diameter and reduces to 36 inches before connecting to another 54-inch pipeline. This portion of the pipeline has historically caused reduced water pressure in portions of the transmission main system. Construction of the proposed Castaic Conduit Bypass Pipeline (Project) would eliminate this constriction by bypassing narrower sections of the pipeline with a new 54-inch-diameter pipeline connecting the existing larger sections. The pipeline would remedy low water pressure issues with turnouts in the Project vicinity, but would not increase the amount of water delivered to the turnouts or to the service area as a whole.

Contact Information

Jeff Ford
Agency Name
Castaic Lake Water Agency
Contact Types
Lead/Public Agency


Santa Clarita
Los Angeles
Cross Streets
Newhall Ranch Road and Ave Tibbetts
Total Acres
Parcel #
State Highways
Valencia HS/Bridgeport
Santa Clara River/San Franciquito Creek

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), Central Valley Flood Protection Board, Department of Water Resources, Resources Agency, State Water Resources Control Board, Division of Water Rights, California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
State Reviewing Agency Comments
California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
Development Types
Water Facilities (Type Pipeline)
Local Actions
Project Issues
Biological Resources, Noise

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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