2026 High Priority Flood Risk Reduction Projects (Project)
2 Documents in Project
Summary
SCH Number
2026050197
Public Agency
California Regional Water Quality Control Board, San Francisco Bay Region 2
(RWQCB)
Document Title
2026 High Priority Flood Risk Reduction Projects (Project)
Document Type
NOE - Notice of Exemption
Received
Posted
8/12/2026
Document Description
The Project will trim and remove vegetation to reduce flood risk in two high-priority locations in the City of San Mateo, San Mateo County. In both of the concrete-lined 16th Avenue and 19th Avenue channels, overgrown vegetation such as cattails, brass buttons, and bitter dock has reduced the conveyance capacity of the channels, leading to flooding of adjacent streets and building during high flow events. The 16th Avenue Channel drains to a local drainage system that discharges to Seal Slough and ultimately the San Francisco Bay.The 19th Avenue Channel drains to Borel Creek, which discharges into Seal Slough and then the Bay. Invasive vegetation will be removed from along 420 linear feet of the bank of the 16th Avenue channel. Following invasive removal, the area will be sprayed with a native seed mix to stabilize the bank and promote native vegetation cover
Contact Information
Name
Jackson Fimrite
Agency Name
California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB)
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Name
Gustavo Lopez
Agency Name
City of San Mateo
Job Title
Environmental Programs Coordinator
Contact Types
Project Applicant / Parties Undertaking Project
Phone
Location
Coordinates
Cities
San Mateo
Counties
San Mateo
Regions
San Francisco Bay Area
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, section 15301: Existing Facilities
Reasons for Exemption
The Project involves maintenance of existing concrete channels with no change in existing or former use.
Attachments
Notice of Exemption
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