Sonoma Water Mirabel Inflatable Dam Bladder Replacement Project


SCH Number
Public Agency
California Regional Water Quality Control Board, North Coast Region 1 (RWQCB)
Document Title
Sonoma Water Mirabel Inflatable Dam Bladder Replacement Project
Document Type
NOE - Notice of Exemption
Document Description
The project will install a replacement fabric bag for Sonoma Water's Mirabel inflatable dam. The project will involve isolating the work area from the active flow of the Russian River through the use of a steel sheet pile wall installed across the Russian River upstream and downstream. Sonoma Water will also remove some nuisance sedimentation near the dam and repair some minor bank erosion on the eastern bank of the Russian River immediately downstream of the Mirabel dam.

Contact Information

Kaete King
Agency Name
North Coast Regional Water Quality Control Board
Contact Types
Lead/Public Agency

Agency Name
Sonoma Water
Contact Types
Project Applicant


Cross Streets
10290 Westside Road

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301 - Existing Facilities and Section 15304 - Minor Alterations to Land
Reasons for Exemption
The project involves maintenance of an existing facility and minor bank stabilization and sediment removal.


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