Sonoma County Water Agency’s River Diversion Structure Modernization Project
Summary
SCH Number
2025110567
Public Agency
Sonoma County Water Agency
Document Title
Sonoma County Water Agency’s River Diversion Structure Modernization Project
Document Type
NOE - Notice of Exemption
Received
Posted
11/14/2025
Document Description
Sonoma County Water Agency’s (Sonoma Water) River Diversion Structure (RDS) facility was originally constructed in 1975 to divert water from the Russian River into a series of infiltration ponds that recharge the alluvial aquifer that feeds collectors 3, 4, and 5. The RDS’ primary pumping, electrical, and control equipment has reached the end of its useful life and requires replacement.
The Project will install upgrades to the facility such as medium voltage step-down transformer; motor control center; three vertical turbine pumps, facility lighting; heating, ventilation, and air conditioning; and a programmable logic controller that will improve the reliability of the water transmission system by replacing aging infrastructure with resilient and redundant equipment. The controls for the system will be modernized to allow for additional data to be collected that will be used to improve efficiency and operations.
Contact Information
Name
Connie Barton
Agency Name
Sonoma County Water Agency
Job Title
Senior Environmental Specialist
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Phone
Location
Cities
Unincorporated Area
Counties
Sonoma
Regions
Unincorporated
Other Location Info
10290 Westside Road, Forestville, CA.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301(a)(b): Existing Facilities and 15302(c): Replacement or Reconstruction
Reasons for Exemption
The Project will consist of replacement of existing publicly-owned utility systems involving negligible or no expansion of use by upgrading aging electrical equipment and infrastructure on the same site and have substantially the same purpose and capacity as the systems replaced. The Project does not have the potential to degrade the quality of the environment or cause a substantial adverse change in the significance of a historic resource.
County Clerk
Sonoma
Attachments
Notice of Exemption
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