Minor Alteration No. WA2025032 – Colusa Basin Drainage Canal Slip Repair Project
3 Documents in Project
Summary
SCH Number
2024120616
Lead Agency
Reclamation District 108
(RD108)
Document Title
Minor Alteration No. WA2025032 – Colusa Basin Drainage Canal Slip Repair Project
Document Type
NOD - Notice of Determination
Received
Posted
5/19/2025
Document Description
Approval of Minor Alteration No. WA2025032, under California Code of Regulations, Title 23, Article 3, Section 6, for work within an adopted plan of flood control: To repair two levee landside slips along the Colusa Basin Drainage Canal East Levee consistent with Standard Operations and Maintenance Manual for the Sacramento River Flood Control Project SAC000 (Standard O&M Manual), Section 4-02. Site A is a 640-foot-long segment located at levee mile 17.2 and Site B is a 150-foot-long segment located at Levee Mile 12.7. The proposed work includes excavating the existing levee below the slip plane and removing the slipped material, as well as reconstruction of the levee section to the existing profile elevation and cross-section with suitable excavated levee material and import fill. Backfill material will be benched into the levee and compacted to ASTM D698 standards. Revegetation would occur with an approved seed mix and existing vegetation would only be removed to the extent necessary for the erosion repair.
Contact Information
Name
Jennifer Calles
Agency Name
Central Valley Flood Protection Board
Job Title
Senior Environmental Scientist
Contact Types
Responsible Agency
Phone
Name
Meegan Nagy
Agency Name
Reclamation District 108
Job Title
Deputy Manager
Contact Types
Lead/Public Agency
Address
Phone
Email
Location
Counties
Colusa
Regions
Northern California
Other Location Info
The project is located adjacent to the Colusa Basin Drain at levee mile 12.69 and 17.25 (38.9455°, -121.9066° and 38.9952°, -121.9601°) in Colusa County, California.
Notice of Determination
Approving Agency
Central Valley Flood Protection Board
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Colusa
Final Environmental Document Available at
The Mitigated Negative Declaration, prepared by the lead agency for the project, is available to the general public at the lead agency’s office listed above. The Board’s administrative record related to the minor alteration is available for public review at the Board’s 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
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(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
No
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(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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