Oso Creek Water Reclamation Plant Improvement Project
2 Documents in Project
Summary
SCH Number
2021080237
Lead Agency
Santa Margarita Water District
Document Title
Oso Creek Water Reclamation Plant Improvement Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Water Reclamation Plant
Document Description
The proposed project will consist of demolishing the existing 3.0 million gallon a day (MGD) Oso Creek WRP, existing office and warehousing buildings and constructing a new technologically advanced WRP that is able to treat 3.3 MGD and a 1.0 MGD Oso Barrier Urban Return Water Treatment Plant (URWTP) advanced water treatment facility. Replacement offices, warehousing space, meeting space and parking will also be constructed on the site. The proposed Oso Creek WRP will treat wastewater generated within the SMWD service area and produce tertiary water that meets State of California Title 22 recycled water requirements for unrestricted reuse. The Oso Barrier URWTP will process urban runoff to be used for irrigation, lake fill, and potable reuse. The URWTP will include prescreening equipment, ultrafiltration, reverse osmosis and UV disinfection. The backwash water will be discharged to the Oso Trunk Sewer for treatment and ultimate disposal from the Latham Water Treatment Plant.
Contact Information
Name
Don Bunts
Agency Name
Santa Margarita Water District
Contact Types
Lead/Public Agency / Project Applicant
Phone
Email
Location
Coordinates
Cities
Mission Viejo
Counties
Orange
Regions
Citywide
Cross Streets
La Paz Road /Marguerite Pkwy
Total Acres
2
State Highways
5
Railways
NA
Airports
NA
Schools
Fred Newhart Middle School
Waterways
oso creek
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 12 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Diego Region 9 (RWQCB), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 8, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance, 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 (Replacement of and existing WRP)(Type WRP, MGD 3.3)
Local Actions
NA
Project Issues
Biological Resources, Cultural Resources, Geology/Soils
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]
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