McCloud Spillway Drilling Project

4 Documents in Project


SCH Number
Public Agency
State Water Resources Control Board
Document Title
McCloud Spillway Drilling Project
Document Type
NOE - Notice of Exemption
Document Description
The purpose of the Project is to obtain baseline geotechnical data from McCloud Dam to inform preferred design alternatives for the McCloud Dam Spillway Replacement Project. Project activities are anticipated to occur from May 2023 through December 2031. The Project involves drilling 50 boreholes in the McCloud Dam spillway and right abutment. Four boring locations will require regrading an existing access road. PG&E will implement avoidance and minimization measures to protect biological resources, water quality, and prevent erosion/sedimentation.

Contact Information

Savannah Downey
Agency Name
State Water Resources Control Board
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency


Citywide, Countywide, Northern California
McCloud River
Other Location Info
McCloud Dam

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301 (Existing Facilities), 15304 (Minor Alterations to Land), 15306 (Information Collection)
Reasons for Exemption
Project activities include minor alterations to an existing facility (McCloud Dam) to support rehabilitation of a damaged structure (spillway) and minor alterations to the land that don't involve tree removal. The geotechnical samples collected will be used to define rock lithology and material properties to reduce uncertainty in PG&E's evaluation models, as well as to minimize corresponding design and construction risks with replacing the spillway.


Notice of Exemption

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