McGaughy and Murphy Water Diversion and Stream Crossings Project (Lake or Streambed Alteration Agreement No. 1600-2018-0698-R1)

SCH Number: 2015102005
Lead Agency: Humboldt County
Document Title: McGaughy and Murphy Water Diversion and Stream Crossings Project (Lake or Streambed Alteration Agreement No. 1600-2018-0698-R1)
Document Type: NOD - Notice of Determination
Received: 4/8/2019
Posted: 4/8/2019

Document Description: The project is limited to four encroachments including two crossing upgrades, one crossing decommission and one surface diversion. The first encroachment is a surface water diversion from a spring (40.9572 N, 123. 7590 W) for domestic use. Work for the water diversion will include use and maintenance of the water diversion infrastructure. Work for the first proposed encroachment (STX-1) will replacing an existing 12" diameter culvert with a minimum 36" diameter culvert in a Class Ill stream (40.9595 N, 123.7590 W). The second proposed encroachment (STX-2) will replace an existing 24" diameter culvert with a minimum 36" diameter culvert in a Class Ill stream (40.9558 N, 123.7608 W). The third proposed encroachment will decommission an existing road/stream crossing (40.9561 , 123.7627 W). Work for these encroachments will include excavation, removal of the existing culverts, replacement with new culverts, backfilling and compaction of fill, and rock armoring as necessary to minimize erosion.

Contact Information: David Manthorne
CDFW
619 Second Street
Eureka, CA 95501
Phone : (707) 441-5900

Coordinates: 40.9539°'"N 123.7616°'"W
Counties: Humboldt
Zip: 95501
Parcel #: 522-031-008, 522-031-004
State Highways: California
Schools: Eureka
Township: 7N
Range: 4E
Section: 31
Other Location Info: The project to be completed is located within the Redwood Creek watershed, approximately 7 miles northwest of the town of Willow Creek, County of Humboldt, State of California.

(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: No
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA: Yes
(3) Mitigated measures were made a condition of the approval of the project: Yes
(4) A Statement of Overriding Considerations was adopted for this project: No
(5) Findings were made pursuant to the provisions of CEQA: No