Vortex Tube Rehabilitation Project Draft Initial Study and Mitigated Negative Declaration of Environmental Impact
MND - Mitigated Negative Declaration
The Sonoma County Water Agency (Sonoma Water) is the project proponent and lead agency in accordance with the California Environmental Quality Act (CEQA) for the proposed Vortex Tube Rehabilitation Project (Proposed Project), which is a flood control structure repair project. Sonoma Water staff has prepared this Draft Initial Study and Mitigated Negative Declaration of Environmental Impact (Draft IS/MND) to provide decision makers, the public, responsible agencies, and trustee agencies with information about the potential environmental impacts associated with the construction, maintenance, and operation of the Proposed Project. This Draft IS/MND was prepared pursuant to the requirements of CEQA (California Public Resources Code Sections 21000 et seq.), State CEQA Guidelines (Code of Regulations, Title 14, Division 6, Chapter 3), and Sonoma Water’s Procedures for the Implementation of CEQA. After completion of the public review period for this document, this Draft IS/MND, along with a summary of comments submitted and response, will be brought before Sonoma Water’s Board of Directors for their consideration.
The Vortex Tube is part of the Santa Rosa Creek Diversion Structure flood control facility, located beneath Montgomery Drive, near Spring Lake and the City of Santa Rosa. The Vortex Tube has deteriorated from over a half-century of scour. The Proposed Project would restore the structural integrity of the Vortex Tube and facilitate future inspections and maintenance.
The Proposed Project is located along Santa Rosa Creek at Montgomery Drive approximately 4 miles east of downtown Santa Rosa and ¾ mile east of Spring Lake Regional Park. The Proposed Project would occur within the Santa Rosa Creek Diversion Structure, and within the natural creek channel immediately upstream and downstream of the Diversion Structure on both sides of Montgomery Drive. The Proposed Project is located on Sonoma Water-owned and managed land. Sonoma Water’s Stream Maintenance Program frequently conducts sediment removal and vegetation management activities in the Project area in order to maintain the flood control facility.
Notice of Completion
Review Period Start
Review Period End
California Air Resources BoardCalifornia Department of ConservationCalifornia Department of Parks and RecreationCalifornia Department of Transportation, District 4California Department of Water ResourcesCalifornia Highway PatrolCalifornia Native American Heritage CommissionCalifornia Natural Resources AgencyCalifornia Regional Water Quality Control Board, North Coast Region 1Department of Toxic Substances ControlOffice of Historic PreservationState Water Resources Control Board, Division of Drinking WaterState Water Resources Control Board, Divison of Financial AssistanceCalifornia Department of Fish and Wildlife, Bay Delta Region 3
Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents.
To obtain an attachment in a different format, please contact the lead agency at the contact information listed above.
You may also contact the OPR via email at email@example.com or via phone at (916) 445-0613.
For more information, please visit OPR’s Accessibility Site.