Minor Alteration No. WA2025033 – Karnak Drainage Facility Upgrade Project: Geotechnical Borings
2 Documents in Project
Summary
SCH Number
2025020562
Public Agency
Central Valley Flood Protection Board
Document Title
Minor Alteration No. WA2025033 – Karnak Drainage Facility Upgrade Project: Geotechnical Borings
Document Type
NOE - Notice of Exemption
Received
Posted
10/28/2026
Document Description
The project proposes two (2) geotechnical borings located near the levee toe and the levee crest of the right bank of the Sutter Bypass. Project activities include clearing and grubbing of existing vegetation or pavement removal in the work areas and ground disturbance by a truck-mounted drill rig and equipment to drill and backfill the boreholes. The exploration activities consist of drilling 8.25-inch diameter geotechnical exploration hollow stem borings drilled to maximum depth of 100 feet, or to refusal, below existing ground. Soil samples will be collected using Standard Penetration Tests, Shelby tube sampling, and cuttings from the test pit. The boreholes will be backfilled with grout the same day of drilling, placed to depth by a tremie. The backfill will be in accordance with County Standards and California Code of Regulations, Title 23, Waters, Division 1 standards.
Contact Information
Name
Jennifer Calles
Agency Name
Central Valley Flood Protection Board
Job Title
Senior Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Name
Roger Cornwell
Agency Name
Reclamation District 1500
Job Title
General Manager
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Address
Phone
Location
Coordinates
Cities
Karnak
Counties
Sutter
Regions
Northern California
Waterways
Sutter Bypass
Other Location Info
The proposed project is located approximately 3.5 miles southeast of the census-designated place of Knights Landing, in the community of Karnak, along the right (west) levee of the Sutter Bypass, in Sutter County (38.78464, -121.65523).
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15306
Reasons for Exemption
The Board has determined that the project activities within the Board's authority are exempt from CEQA pursuant to the Class 6 (Information Collection) categorical exemption (California Code of Regulations, title 14, section 15306). The project qualifies for this exemption because it involves information collection, research, or resource evaluation activities that do not result in a serious or major disturbance to an environmental resource. The Board further finds that none of the exceptions to the categorical exemptions set forth in California Code of Regulations, title 14, section 15300.2 apply.
Attachments
Notice of Exemption
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