HARDESTY WATER DIVERSION AND STREAM CROSSINGS (Lake or Streambed Alteration Agreement No. 1600-2019-0139-R1)

272 Documents in Project

Summary

SCH Number
2015102005
Lead Agency
Humboldt County
Document Title
HARDESTY WATER DIVERSION AND STREAM CROSSINGS (Lake or Streambed Alteration Agreement No. 1600-2019-0139-R1)
Document Type
NOD - Notice of Determination
Received
Posted
7/2/2019

Document Description
The project is limited to 3 encroachments. POD-1 is located on an un-named spring tributary to Painter Gulch which is a tributary to Yager Creek. The diversion is located on a neighboring parcel APN 314-311-009 and the landowner has deeded rights to use the spring. The intake consists of a wooden spring box emplaced in the ground. From the POD water is gravity fed to a 500-gallon holding tank via a 1-inch black poly line; then water is gravity fed to a 2,500-gallon water tank equipped with a float valve to stop diversion when full. From the 2,500-gallon tank, water is pumped through a 1.5-inch water line using a solar powered pumped to the ~6-acre vineyard for irrigation using a pressurized drip irrigation system. Approximately 70,000 gallons is diverted each month for irrigation from May 15th through September 15th. The vineyard was recently planted and requires irrigation in the early years, while the roots are becoming established, eventually the irrigation from the POD will stop and the transition to dry farming will begin. The landowner anticipates that the vineyards will be primarily dry farmed by spring of 2023. STX-1. A Class Ill stream with a 30-inch diameter steel culvert. The culvert is not sized to pass the 100-year peak streamflow and associated debris and is rusted through the bottom. Additionally, the culvert is installed high in the fill which is causing erosion at the outlet. The right and left road approaches are also hydrologically connected to the stream crossing, and no diversion potential exists. The culvert will be replaced with a 54-inch dia. x 40-foot long culvert sized for 100-year peak streamflow and associated debris, installed at channel grade, and at the base of till. Additionally, the culvert will allow for the passage of aquatic organisms. At least one rolling dip will be installed along the right road approach and one on the left road approach to reduce hydrologic connectivity and prevent surface erosion. STX-2. A Class 11 stream with a 30-inch diameter steel culvert. The culvert is not sized to pass the 100-year peak streamflow and associated debris and is rusted through the bottom. Additionally, the culvert is installed high in the fill which is causing some minor erosion at the outlet, the right and left road approaches are also hydrologically connected to the stream crossing, and no diversion potential exists. The culvert will be replaced with a 60-inch dia. x 40-foot long culvert sized for 100-year peak streamflow and associated debris, installed at channel grade, and at the base of fill. Additionally, the culvert will allow for the passage of aquatic organisms. At least one rolling dip will be installed along the right road approach and one on the left road approach to reduce hydrologic connectivity and prevent surface erosion.

Contact Information
Cheri Sanville
Department of Fish and Wildlife Northern Region
619 Second Street
Eureka, CA 95501

Phone : (707) 441-5901

Location

Counties
Humboldt
Other Location Info
The projects to be completed are located in the Van Duzen River watershed at 1011 Tim Mullen Road, County of Humboldt, State of California. The projects are for Assessor's Parcel Numbers (APN) 314- 321-031 and 314-156-009, but they are located on APN 314-311-009, and 314-151-010. The point of diversion (POD-1) is located at 40.709784 N, -123.951797 W, on an unnamed spring, tributary to Painter Gulch. Stream crossing 1, (STX-1) is located at 40.708057 N, -123.949305 W, on a class II stream. STX-2 is located at 40.707873 N, -123.947541 Won the same stream.

Notice of Determination

Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
County of Humboldt 3015 H Street Eureka, Ca 95501

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
No
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(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
N/A
(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
2015102005_1600-2019-0139-R1_HUM_MJ Hardesty Water Diversion and Stream Crossings_NOD   PDF 941 K
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