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File #: 2019-094   
Title: Building Demolition Polychlorinated Biphenyls (PCBs) Program Update
Attachments: 1. Att 1 - BASMAA Applicant Package
Date Action ByActionResultAction DetailsMeeting DetailsMedia
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TO: Sustainability and Infrastructure Commission

FROM: Brad B. Underwood, Public Works Director

PREPARED BY: Grant Ligon, Stormwater Program Coordinator

MEETING DATE: Wednesday, February 13, 2019

Building Demolition Polychlorinated Biphenyls (PCBs) Program Update

Receive an update regarding the City's progress developing a new building demolition program to reduce the discharges of polychlorinated biphenyls in stormwater.

The City of San Mateo (City), as a Permittee within the San Francisco Regional Water Quality Control Board-issued Stormwater Municipal Regional Permit (MRP), is required to implement stormwater-related control measures for reducing polychlorinated biphenyl (PCB) pollution discharge to the Bay. The MRP requires the City to implement a PCB building demolition management program (Program) to effectively (1) manage PCB-containing materials during demolition of qualifying structures and (2) quantify PCB load reductions associated with Program implementation.

Per the MRP, qualifying structures include non-residential structures constructed or remodeled between 1950 and 1980 because they may have PCB-containing building materials that can pose a significant risk to stormwater runoff quality. Potential PCB-containing building materials include caulk, thermal or fiberglass insulation, adhesive mastics, and rubber window gaskets. Although the City can elect to include additional types of structures, the MRP exempts single-family residential and wood-frame structures as well as partial demolitions from the Program. The City's Program is consistent with the MRP and its exemptions.

Qualifying structures must sample building materials prior to being issued a demolition permit by the City. If any building materials contain PCB concentrations greater than 50 milligrams per kilogram (mg/kg), the applicant is required to submit a notice to the United States Environmental Pr...

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