Feather River Paleoflood Investigation


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
Feather River Paleoflood Investigation
Document Type
NOE - Notice of Exemption
Document Description
The analysis will include limited manual excavations at two sites on the margins of Thermalito Diversion Pool. These investigations will be conducted by geologists experienced in late Quaternary soils and fluvial geomorphology, in conjunction with qualified environmental and archaeological monitors, including tribal personnel. The work will be directed by geologists and engineers from the United States Army Corp Engineers (USACE) with assistance from the Department of Water Resources (DWR). The pits will be no more than 6' by 6' wide and 4' deep. The pits will be hand dug using shovels and backfilled upon completion. The purpose of the limited field investigations is to provide geologic data for a paleoflood analysis for Oroville Dam in Butte County, California. The overall goal of the analysis is to develop a long-term hydrologic record for the Feather River watershed and improve confidence in inflow-frequency data based on the extreme floods in the geologic record.

Contact Information

Robin Carter-Ervin
Agency Name
Contact Types
Lead/Public Agency


Northern California
Other Location Info
Oroville Quad

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
This project involves data collection that will not result in a major disturbance to a environmental resource. There are no sensitive biological or cultural resources located at the proposed excavation sites.
County Clerk


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