Lake or Streambed Alteration Agreement No. EPIMS-HUM-51253-R1 – Blue Lake Gravel Bar Extraction Project
60 Documents in Project
Summary
SCH Number
1992083049
Lead Agency
Humboldt County
Document Title
Lake or Streambed Alteration Agreement No. EPIMS-HUM-51253-R1 – Blue Lake Gravel Bar Extraction Project
Document Type
NOD - Notice of Determination
Received
Posted
8/27/2024
Document Description
The project is limited to one encroachment for aggregate extraction from the
channel of the Mad River for commercial purposes. The Permittee proposes to extract up to 50,000
cubic yards of gravel annually from the Blue Lake bar. Federal permit restrictions on the annual
volume of gravel extracted were implemented based on a flow-based analysis of gravel replenishment.
On average, over the last five years (2019 thru 2023), the annual extraction volumes have been
approximately 22,000 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 outside the Mad River wetted
channel 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. Temporary crossings of the wetted
channel may be needed to access gravel deposits. 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
Phone
Location
Coordinates
Cities
County of Humboldt
Counties
Humboldt
Regions
Northern California
Parcel #
313-231-001, 313-231-002, 313-231-003, 313-161-007, and 313-161-020
Waterways
Mad River, a tributary to the Pacific Ocean
Township
6N
Range
2E
Section
30
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
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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