Thermalito Diversion Dam Grout Repair


SCH Number
Lead Agency
Water Resources, Department of (California Department of Water Resources)
Document Title
Thermalito Diversion Dam Grout Repair
Document Type
NOE - Notice of Exemption
Project Applicant
Department of Water Resources (DWR), Oroville Field Division

Document Description
Re-grout behind all seal plates on 14 radial gates. shall include all instances of missing grout behind all seal plates. Work will be done by DRS Marine. All sealant and grout will be installed in a manner that no toxic substances will enter the waterway. Missing grout was discovered by a dive inspection last July.

Contact Information
Robin Carter
CA Dept. of Water Resources
460 Glen Drive
Oroville, CA 95966

Phone : (530) 534-2570


Other Location Info
About one mile north of the city of Oroville at the Thermalito Diversion Dam. On the downstream end on the Thermalito Diversion Pool about 3 miles southwest of the Oroville Dam.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
This work is exempt because it is maintenance on an existing facility and will not cause an impact to the environment. the sealant and grout will not be allowed to enter or mix with the water within the Diversion Pool.


Notice of Exemption
2019100018_NOE_TDD Grout Repair   PDF 554 K

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