Lake or Streambed Alteration Agreement No. EPIMS-HUM-47802-R1C – Rock Bar Gravel Extraction Project

6 Documents in Project

Summary

SCH Number
1996052013
Lead Agency
Humboldt County
Document Title
Lake or Streambed Alteration Agreement No. EPIMS-HUM-47802-R1C – Rock Bar Gravel Extraction Project
Document Type
NOD - Notice of Determination
Received
Posted
6/12/2024
Document Description
The project is limited to one encroachment for aggregate extraction from the channel of the Van Duzen River and Eel River for commercial purposes. The gravel extraction volume approved under the Conditional Use Permit and Reclamation Plan issued by the County of Humboldt is 100,000 cubic yards of gravel annually from the Rock Bar. Over the last five years (2019 through 2023), annual extraction volumes averaged approximately 59,000 cubic-yards. Aggregate extraction consists of removal of flood-washed alluvial material using heavy equipment (e.g., front-end loaders, excavators, bulldozers, and dump trucks) from the Van Duzen River and Eel River channels and adjacent areas. Aggregate extraction methods and volumes shall be consistent with approved annual 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 and reshaping of the low flow channel to enhance passage conditions. Often, the channel at Rock bar lacks surface flow during the extraction season, however, temporary crossings of the wetted channel may be needed to access gravel deposits in wet years, or years when seasonal precipitation events cause surface flow to re-occur. If the channel becomes “re-wetted” during operations, the Permittee shall immediately contact CDFW to coordinate the installation of temporary crossings. Timing of the installation and removal of these crossings is conducted to avoid periods of peak flows, salmonid migration and spawning, other aquatic organisms, and requires coordination with CDFW scientific staff. Crossings are also designed to minimize the extent of channel disturbance and avoid sensitive aquatic habitat.

Contact Information

Name
Jonathan Hollis
Agency Name
CDFW
Job Title
Environmental Scientist
Contact Types
Responsible Agency

Location

Cities
Alton
Counties
Humboldt
Regions
Northern California
Parcel #
201-261-009, 205-121-001, 201-262-012, 201-311-018, 205-121-002, 205-121-003, 205-151-001, 205-1
Waterways
confluence of the Van Duzen and Eel rivers, tributary to the Pacific Ocean
Township
2N
Range
1W
Section
23,24
Base
Humboldt

Notice of Determination

Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Humboldt
Final Environmental Document Available at
County of Humboldt Planning and Building Department 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
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No

Attachments

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