San Joaquin Marsh Reserve Water Conveyance and Drainage Improvement


SCH Number
Lead Agency
University of California, Irvine
Document Title
San Joaquin Marsh Reserve Water Conveyance and Drainage Improvement
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Open Space - General in 2007 LRDP

Document Description
The Project would improve the long-term water management and habitat value of the San Joaquin Marsh Reserve (Marsh Reserve) located in City of Irvine, Orange County, California. The Marsh Reserve is owned by the University of California (UC) and managed by the UC Natural Reserve System (NRS) and by the University of California, Irvine (UCI). The Project proposes new- and repair of- existing hydrology and water quality infrastructure to better manage flows within the Marsh Reserve. Design Goal 1 proposes infrastructure establishment and/or modifications that anticipate impacts of climate change (e.g., drought, flooding, and sea level rise). Design Goal 2 focuses on water sourcing, treatment, and measurement (from Irvine Ranch Water District (IRWD) or San Diego Creek). Construction is anticipated to take approximately 8 to 10 months total and may occur in two phases, likely one phase for Design Goal 1 and one phase for Design Goal 2. The Marsh Reserve would continue to function as a preservation area during and after construction.

Contact Information
Lindsey Hashimoto
University of California, Irvine
Lead/Public Agency
4199 Campus Dr, Suite 380 Irvine, CA 92697
Irvine, CA 92697

Phone : (949) 824-8692


Cross Streets
University Drive and Campus Drive
Total Acres
Parcel #
445-072-35, -36, -37
State Highways
John Wayne Airport

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Water Quality Infrastructure for Marsh Reserve)
Local Action
Design Approval
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Coastal Zone Cultural Resources Cumulative Effects Energy Geology/Soils Greenhouse Gas Emissions Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mandatory Findings of Significance Mineral Resources Noise Population/Housing Public Services Recreation Schools/Universities Transportation Tribal Cultural Resources Utilities/Service Systems Vegetation Wetland/Riparian Wildfire
Reviewing Agencies
California Air Resources Board (ARB) California Coastal Commission (CCC) California Department of Fish and Wildlife, Marin Region 7 (CDFW) California Department of Parks and Recreation California Department of Transportation, District 12 (DOT) California Department of Transportation, Division of Aeronautics (DOT) California Department of Transportation, Division of Transportation Planning (DOT) California Department of Water Resources (DWR) California Fish and Game Commission (CDFGC) California Governor's Office of Emergency Services (OES) California Highway Patrol (CHP) California Native American Heritage Commission (NAHC) California Natural Resources Agency California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB) California State Lands Commission (SLC) Department of Toxic Substances Control State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Quality California Department of Fish and Wildlife, South Coast Region 5 (CDFW)


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
21-03-11_Draft ISMND_SJMR Water and Drainage Improvement_w Appendices   PDF 38110 K 21-03-11_Notice of Intent   PDF 430 K 21-03-11_Summary_Form_SJMR WCDI_Project   PDF 581 K
Notice of Completion [NOC] Transmittal form
21-03-11_NOC_Form_SJMR WCDI_Signed   PDF 327 K
State Comment Letters [Comments from state reviewing agencies]
2021030295_CDFW Comment   PDF 676 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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