Baker Water Treatment Plant Project

7 Documents in Project


SCH Number
Lead Agency
Irvine Ranch Water District
Document Title
Baker Water Treatment Plant Project
Document Type
EIR - Draft EIR
Present Land Use
Public Facilities; Residential; Open Space Park

Document Description
The proposed Baker Water Treatment Plant (WTP) would have a normal operating capacity of 43.5 cfs (28 mgd) and would treat raw water from variable supply sources. The proposed project would provide redundant treatment capacity to MWD's Diemer Treatment Plant on a regular basis and in the event of planned or unplanned outages of MWD facilities. The project would not increase the capacity of regional treated water distribution pipelines, but rather improve regional potable water system reliability and operational flexibility. The Baker WTP would provide treated water to IRWD and four partner water agencies in southern Orange County: El Toro Water District (ETWD), Moulton Niguel Water District (MNWD), Santa Margarita Water District (SMWD), and Trabuco Canyon Water District (TCWD). In addition to the Baker WTP, the proposed project also would include a new offsite Raw Water Pump Station near Peters Canyon Reservoir; a meter exchange and pipeline replacement at OC-33; a new sewer pipeline to convey non-reclaimable waste (NRW) from the Baker WTP to IRWD's sanitary sewer system; and may include new pipelines to convey treated water from the Baker WTP to the South County Pipeline.

Contact Information
Paul Weghorst
Irvine Ranch Water District
15600 Sand Canyon Avenue
Irvine, CA 92618

Phone : (949) 453-5632


33°39'22.3"N 117°41'01.8"W
Cross Streets
Wisteria Lane and Palmwood Drive, Lake Forest
Total Acres
State Highways
Hwy 241
El Toro MCAS (decommissioned)
Lake Forest Montessori, Fullbright Montessori, Rancho Canada ES
Serrano Creek, Peters Canyon Reservoir
Other Location Info
City/Nearest Community: Orange, Lake Forest

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Treatment Plant Type, 28 MGD)
Local Action
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 Public Services Recreation/Parks Schools/Universities Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Wildlife Growth Inducing 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 Department of Transportation, District 12 California Native American Heritage Commission California Public Utilities Commission California Regional Water Quality Control Board, Santa Ana Region 8 Caltrans, Division of Aeronautics Department of Water Resources Office of Emergency Services, California Resources Agency State Water Resources Control Board, Division of Water Quality State Water Resources Control Board, Division of Water Rights Department of Toxic Substances Control

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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