South Delta Geotechnical Investigations


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
South Delta Geotechnical Investigations
Document Type
NOE - Notice of Exemption
Document Description
The South Delta Geotechnical Investigations Project includes up to 67 geotechnical soil borings and 12 cone penetration tests (CPTs) within five investigation locations on Old River, Grant Line-Fabian Bell Canal, and Middle River. Soil borings would be less than 8 inches in diameter and drilled to a maximum of 150 feet deep, with up to 28 borings occurring over water and up to 39 on land. CPTs will only take place on land and will be pushed to a depth of 100 feet. DWR is proposing to conduct these geotechnical explorations to gain a preliminary understanding of the geological and geotechnical conditions at potential construction locations for a permanent operable barriers project that has been identified for possible implementation by DWR, the California Natural Resources Agency, and the United States Bureau of Reclamation. Geotechnical activities are expected to begin in early 2025.

Contact Information

Jacob McQuirk
Agency Name
Department of Water Resources
Job Title
Principal Engineer WR
Contact Types
Lead/Public Agency


unincorporated San Joaquin County
San Joaquin
Other Location Info
See attachment for coordinates.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 6; Information Collections; California Code of Regulations title 14, section 15306
Reasons for Exemption
The proposed project consists of up to 67 geotechnical soil borings and 12 cone penetration tests which individually and collectively would have a small, temporary impact and would not result in serious or major disturbance to an environmental resource. Avoidance and minimization measures have been incorporated into the project to further minimize disturbance to the environment. Information obtained from this investigation would be used to support the development of a future action that is not yet approved, adopted, or funded. None of the exceptions to the exemption apply.
County Clerk
San Joaquin


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