Lake or Streambed Alteration Agreement No. EPIMS-HUM-50199-R1C – Willow Creek Bar Gravel Extraction Project.
5 Documents in Project
Summary
SCH Number
2016082006
Lead Agency
Humboldt County
Document Title
Lake or Streambed Alteration Agreement No. EPIMS-HUM-50199-R1C – Willow Creek Bar Gravel Extraction Project.
Document Type
NOD - Notice of Determination
Received
Posted
10/17/2024
Document Description
The project is limited to one encroachment for aggregate extraction from the Willow Creek Bar (Mine ID 91120007), Trinity River for commercial purposes. The gravel extraction volume approved by the County of Humboldt (CUP-16-013/SMP-16-002/RP-16-002/SP-16-024) is 40,000 cubic yards of gravel annually. Over the last five years (2019 through 2023), no extraction occurred.
Aggregate extraction consists of removal of deposited alluvial material using heavy equipment (e.g., front-end loaders, excavators, bulldozers, and dump trucks) from outside the Trinity River wetted-channel. Aggregate extraction methods and volumes shall be consistent with approved annual pre-extraction work plans. Extraction occurs during the summer low-flow period when alluvial deposits are exposed. Fisheries- and riparian-enhancement or off-channel extractions may be included annually and involve connection of extraction areas to the wetted channel. In some years, a temporary crossing of a wetted secondary channel may be needed to access the gravel bar. Timing of the installation and removal of this crossing is conducted to avoid periods of peak flows, salmonid migration and spawning, other aquatic organisms, and requires annual coordination with – and approval from –CDFW scientific staff. Crossings are also designed to minimize the extent of channel disturbance, avoid sensitive aquatic habitat, and provide fish passage if an unexpected rise in flow occurs.
Contact Information
Name
Jonathan Hollis
Agency Name
CA Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Address
Phone
Location
Coordinates
Cities
Willow Creek
Counties
Humboldt
Regions
Northern California
Parcel #
522-142-010, 522-145-004, 522-145-006, etc
Waterways
Trinity River
Township
7N
Range
5E
Section
29
Base
Humboldt
Notice of Determination
Approving Agency
CA Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Humboldt
Final Environmental Document Available at
County of Humboldt
3015 H Street
Eureka, CA 95501
Contact: Joshua Dorris
Phone: (707) 268-3779
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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