Florence Lake Dam Arch 52-54 Repair and Low-Level Outlet Upgrade Project

Summary

SCH Number
2022080099
Public Agency
State Water Resources Control Board
Document Title
Florence Lake Dam Arch 52-54 Repair and Low-Level Outlet Upgrade Project
Document Type
NOE - Notice of Exemption
Received
Posted
8/4/2022
Document Description
Southern California Edison Company (SCE) is proposing the Project, which involves two main activities: (1) repairs to three of the arches at the multiple-arch Florence Lake Dam; and (2) upgrade of the existing low-level outlet system. The proposed repairs and upgrades will not result in a change to the design or function of the dam. Upgrade of the low-level outlet system involves installation of secondary low level outlet valves as well as upgrades to meet minimum instream flow releases per the pending new Federal Energy Regulatory Commission (FERC) license for the Big Creek 2A, 8 & Eastwood Hydroelectric Project, FERC Project No. 67.

Contact Information

Name
Derek Wadsworth
Agency Name
State Water Resources Control Board
Job Title
Water Resource Control Engineer
Contact Types
Lead/Public Agency

Location

Counties
Fresno
Regions
Citywide, Countywide, Southern California
Zip
93634
Waterways
Florence Lake, South Fork San Joaquin River

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Existing Facilities, section 15301
Reasons for Exemption
The Project qualifies for a Class 1: Existing Facilities categorical exemption under California Code of Regulations Section 15301 because the Project involves minor modifications to an existing structure with no expansion of use. Modifications include concrete repair work to the dam’s surface and replacement of the existing minimum instream flow pipe with a larger pipe to convey higher flow releases. The minimum instream flow release point will remain unchanged.

Exempt Status
Categorical Exemption
Type, Section or Code
Class 3, Construction or Conversion of Small Structure, section 15303
Reasons for Exemption
The Project also qualifies for a Class 3: New Construction or Conversion of Small Structure categorical exemption under California Code of Regulations Section 15303 because upgrade of the low-level outlet system involves installation of secondary low-level outlet valves as well as upgrades for minimum instream flow releases. No cumulative impacts or unusual circumstances are present that would present an exception to this categorization.
County Clerk
Fresno

Attachments

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