Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Trinity River Channel Rehabilitation Sites: Coarse Sediment Management Activities
NOD - Notice of Determination
Present Land Use
Project is planned within waters of the US at five locations on the Trinity River
Note: Tiered IS (15177) to SCH# 2008032110
This activity is considered to be within the scope of the previously certified Master EIR for channel rehabilitation and sediment management for remaining phase 1 and Phase 2 sites = State Clearinghouse #2008032110. The purpose of this Project is to restore aquatic habitat in the Trinity River by injecting coarse sediment to supplement coarse sediment removed from the system by the Lewiston Dam on the Trinity River. The project is designed to enhance aquatic habitat quality. The proposed Project would include introducing coarse sediment into the river primarily at high spring flows with heavy equipment or by using a conveyor system to carry the gravel to mid-channel locations.
Various locations on the Trinity River noted in IS
Other Location Info
Notice of Determination
North Coast Regional Water Quality Control Board
Approving Agency Role
Final Environmental Document Available at
North Coast Regional Water Quality Control Board, 5550 Skylane Blvd, Suite A, Santa Rosa, CA 95403
(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA
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