Orange County Feeder Blow-Off Structure Rehabilitation Project

4 Documents in Project


SCH Number
Lead Agency
Metropolitan Water District of Southern California
Document Title
Orange County Feeder Blow-Off Structure Rehabilitation Project
Document Type
EIR - Draft EIR
Present Land Use
Open Space

Document Description
The proposed project would rehabilitate an existing blow-off structure located along the Orange County Feeder, a water conveyance pipeline that delivers treated water to Orange County. The proposed project would include the following actions: replacement of all corroded piping in the blow-off structure; raising the elevation of the blow-off structure by 5 feet to protect against sea level rise; Installation of new blow-off piping to comply with current state Department of Public Health regulations; grading and rehabilitation of existing dirt access roads, including a low-profile stormwater draining crossing; reestablishment of a maintenance vehicle turnaround area adjacent to the blow-off structure; and ongoing access road maintenance to allow vehicle access for routine pipeline maintenance.

Contact Information
Sean Carlson
Metropolitan Water District of Southern California
P.O. Box 54153
Los Angeles, CA 90054-0153

Phone : (213) 217-6276


33°39'6"N 117°51'50"W
Newport Beach
Cross Streets
Jamboree Road and Bayview Way
Total Acres
Parcel #
State Highways
Hwy 73, 55
John Wayne
Upper Newport Back Bay/San Diego Creek Flood Control Channel

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Blow-off structu Type) Other (Rehabilitation of existing blow-off structure and access road)
Local Action
Local Coastal Permit Other Action Other Action: Water distribution
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Coastal Zone Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Wildlife Land Use Cumulative Effects
Reviewing Agencies
California Air Resources Board California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, Santa Ana Region 8 California State Lands Commission Caltrans, Division of Aeronautics Department of Water Resources Office of Emergency Services, California Office of Historic Preservation Resources Agency State Water Resources Control Board, Divison of Financial Assistance State Water Resources Control Board California Coastal Commission California Department of Fish and Wildlife, South Coast Region 5 California Department of Transportation, District 12

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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