Special Notice / Hearing: None__
Vote Required: Majority
To: Honorable Board of Supervisors
From: Carolyn Bloede, Director, Office of Sustainability
Subject: Policy for the Operation and Maintenance of County Stormwater Control Measures
RECOMMENDATION:
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Adopt a resolution authorizing and directing the County Manager to establish a Policy for the Operation and Maintenance of County Stormwater Control Measures.
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BACKGROUND:
The San Francisco Bay Regional Water Quality Control Board's (Water Board) 2015 Municipal Regional Permit (MRP) regulates pollutants in stormwater runoff from municipal storm drain systems throughout San Mateo County.
Provision C.3 of the MRP regulates how stormwater treatment measures are incorporated in new development and redevelopment projects and requires that newly installed measures are correctly operated and maintained for the life of the project, or until responsibility is legally transferred to another entity.
On September 17, 2019, the Board of Supervisors adopted Resolution No. 076876 approving a Green Infrastructure Plan for the unincorporated County and County Facilities (GI Plan). The GI Plan describes how the County will gradually shift from traditional "gray" storm drain infrastructure, which channels polluted runoff directly into receiving waters without treatment to "green" infrastructure (GI), which uses natural processes to treat stormwater, reduce flooding, and recharge groundwater.
Throughout the GI Plan, the County commits to installing additional stormwater treatment measures, where practicable, on County-owned parcels and in the public right-of-way, including County-maintained streets and sidewalks.
Provision C.3.h of the MRP requires a legally enforceable mechanism assigning operation and maintenance (O&M) responsibility for these treatment measures and the Policy for the Operation and Maintenance of County Stormwater Control Measures and serves as a blanket policy for all Cou...
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