Tom Paine Slough Geotechnical Investigations
Summary
SCH Number
2025100278
Public Agency
California Department of Water Resources
(DWR)
Document Title
Tom Paine Slough Geotechnical Investigations
Document Type
NOE - Notice of Exemption
Received
Posted
10/7/2025
Document Description
The Tom Paine Slough Geotechnical Investigations Project include soil borings and potentially cone penetration tests (CPTs) which will be used to obtain subsurface information in the vicinity of a siphon facility owned and operated by the Pescadero Reclamation District 2058. These geotechnical investigations would inform the development of design and engineering for a future project that would replace the existing siphon structures with an equivalent structure. The proposed project includes up to 9 over-water borings, and up to 7 on-land borings. All borings will have a maximum diameter of 8 inches and a maximum depth of 150 feet below ground/channel bottom. Up to 4 of the proposed on-land borings may be replaced with CPTs, which will advance to a maximum depth of approximately 100 feet. Project activities are expected to begin in summer of 2026.
Contact Information
Name
William McLaughlin
Agency Name
Department of Water Resources
Job Title
Supervising Engineer
Contact Types
Lead/Public Agency
Phone
Location
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 16 geotechnical soil borings and/or cone penetration tests which individually and collectively have a small, temporary impact and do not result in serious or major disturbance to an environmental resource. This information 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.
Attachments
Notice of Exemption
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