Duncan Creek Diversion Improvement Project - Pneumatic Crest Gates and Micro-Hydro Units
14 Documents in Project
Summary
SCH Number
2012082046
Lead Agency
Placer County Water Agency
Document Title
Duncan Creek Diversion Improvement Project - Pneumatic Crest Gates and Micro-Hydro Units
Document Type
NOD - Notice of Determination
Received
Posted
1/25/2022
Document Description
PCWA proposes the addition of pneumatic crest gates and micro-hydro units to be installed as part of a larger project called Duncan Creek Diversion Improvement Project, which is part of the Middle Fork American River Hydroelectric Project. The pneumatic crest gates will be installed within the notch on the spillway immediately adjacent to the south abutment of the dam and will allow for course sediment and debris to pass downstream. The addition of micro-hydro units would involve the installation of two 1,000-Watt, 48-volt direct current units, which would provide power to charge the battery bank for operation of the diversion facility. The micro-hydro units will be installed along the 12-inch instream flow pipe and housed within a vault constructed integral to the intake facility.
The pneumatic crest gates and micro-hydro units will be installed within the construction footprint analyzed in the Environmental Impact Statement for Hydropower License, Middle Fork American River Hydroelectric Project—FERC Project No. 2079-069, California (2013 FEIS) and the Final CEQA Supplement to the FERC Final Environmental Impact Statement (CEQA Supplement) for the MFP. In addition, installation of the pneumatic crest gates and micro-hydro units do not result in any new impacts not previously analyzed, or in the need for additional avoidance, protection, or mitigation measures.
Contact Information
Name
Ben Ransom
Agency Name
Placer County Water Agency
Contact Types
Lead/Public Agency
Address
Phone
Email
Location
Counties
Placer
Regions
Citywide
Other Information
Duncan Creek Diversion Dam is located on Duncan Creek in Placer County on lands within the Tahoe National Forest. The diversion dam is approximately 36 miles northeast of Auburn and 20 miles east of Foresthill, California, and approximately 1.5 miles north of French Meadows Reservoir in Placer County.
Notice of Determination
Approving Agency
Placer County Water Agency
Approving Agency Role
Lead Agency
Approved On
County Clerk
Placer
Final Environmental Document Available at
PCWA, 144 Ferguson Road, Auburn, CA 95603.
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 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
Yes (Addendum)
(3) Mitigated measures were made a condition of the approval of the project
No
(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
Yes
Attachments
Notice of Determination
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