San Diego Creek Water Rights Change Petition Project


SCH Number
Lead Agency
Irvine Ranch Water District
Document Title
San Diego Creek Water Rights Change Petition Project
Document Type
NEG - Negative Declaration
Present Land Use
GP: Preservation/Z: 1.3 Conservation Open Space Reserve, 1.4 Preservation

Document Description
The proposed project is a modification of IRWD's SWRCB Permit for Diversion and use of water (permit 20979), which is an appropriate water right to divert water from the San Diego Creek for "Wildlife Enhancement" at the IRWD San Joaquin Marsh. The San Joaquin Marsh is a constructed treatment wetland, and water is discharged back to San Diego Creek with improved water quality. The proposed modifications would include changing the Place of Use to include the entirety of IRWD's San Joaquin Marsh and Wildlife Sanctuary and the neighboring Freshwater Marsh Reserve owned by the UC NRS and increase the Rate of Diversion from 5 cfs to 13.3 cfs. The proposed project would not change the permit's face value of 3,600 AFY.

Contact Information
Jo Ann Corey
Irvine Ranch Water District
15600 Sand Canyon Avenue
Irvine, CA 92618

Phone : (949) 453-5300


33°40'01.9"N 117°50'45.3"W
Cross Streets
Carlson Ave/San Diego Creek/Michelson Dr/Riparian View
State Highways
SR 73, I-405
John Wayne
San Diego Creek, San Joaquin Marsh and Wildlife Sanctuary

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (water rights permit modification)
Local Action
Other Action Other Action: petition
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Land Use Cumulative Effects
Reviewing Agencies
California Department of Conservation California Department of Fish and Wildlife, South Coast Region 5 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 Historic Preservation Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Rights 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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