Syphon Reservoir Improvement Project (Lake or Streambed Alteration Agreement No. EPIMS-ORA-48911-R5)
13 Documents in Project
Summary
SCH Number
2019080009
Lead Agency
Irvine Ranch Water District
Document Title
Syphon Reservoir Improvement Project (Lake or Streambed Alteration Agreement No. EPIMS-ORA-48911-R5)
Document Type
NOD - Notice of Determination
Received
Posted
3/19/2026
Document Description
The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement EPIMS Notification No. EPIMS-ORA-48911-R5, pursuant to Section 1602 of the Fish and Game Code to Irvine Ranch Water District, as represented by Paul Cook.
The Project activities include raising the height of the Syphon Dam, the expansion of the Syphon Reservoir inundation area, and the expansion of Syphon Reservoir Treatment Facilities. Associated activities, including but not limited to, construction of access and maintenance roads, and on-site and off-site mitigation are also included in the Project.
Contact Information
Name
Riley Scott
Agency Name
California Department of Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Name
Fiona Nye
Agency Name
Irvine Ranch Water District
Job Title
Director of Water Resources
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
Orange
Counties
Orange
Regions
Southern California
Cross Streets
33.712018 N, -117.729456 W
Parcel #
104-117-40, 104-117-27, 104-117-42
Other Location Info
The Project is located at the existing Syphon Reservoir and unnamed drainages to Syphon Reservoir, northeast of Portola Parkway between Bee Canyon Access Road and SR-133 in the County of Orange, State of California; Latitude 33.712018 N, Longitude -117.729456 W; Assessor’s Parcel Numbers (APN) 104-117-40, 104-117-27, and 104-117-42.
Notice of Determination
Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Orange
Final Environmental Document Available at
The Final EIR prepared for the project is available to the general public at the office location listed above for the Lead Agency. CDFW’s record of project approval as a Responsible Agency is available at CDFW’s regional office.
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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