Magalia Dam – Geotechnical Survey (Lake and Streambed Alteration Agreement EPIMS Notification No. BUT-41704-R2)


SCH Number
Public Agency
California Department of Fish and Wildlife, North Central Region 2 (CDFW)
Document Title
Magalia Dam – Geotechnical Survey (Lake and Streambed Alteration Agreement EPIMS Notification No. BUT-41704-R2)
Document Type
NOE - Notice of Exemption
Document Description
The project consists of conducting six geotechnical borings into the Magalia Reservoir bed to assess the foundation conditions of the upstream buttress and the geotechnical properties of the proposed borrow materials. A barge-mounted drill rig equipped with mud rotary and rock coring drilling equipment will bore below the bottom of the reservoir bed, and all boreholes will be backfilled upon completion. A temporary access route and launch site for the barge, trailer, and support boat along the shoreline will be established to allow access to the water during project activities.

Contact Information

Mary Xiong
Agency Name
California Department of Fish and Wildlife
Job Title
Senior Environmental Scientist, Specialist
Contact Types
Lead/Public Agency


Northern California
Magalia Reservoir
Other Location Info
1) and 2) Latitude 39.8162, Longitude -121.5830; 3) and 4) Latitude 39.8158, Longitude -121.5840; 5) Latitude 39.8169, Longitude -121.5850; and 6) Latitude 39.8184, -121.5860.
Other Information
intersection of Skyway and Dogtown Road

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 6; California Code of Regulations, title 14, sections 15306
Reasons for Exemption
Project involves subsurface investigations to provide engineering soil properties and evaluate site conditions for future dam maintenance and construction.
County Clerk


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