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File Number: 19-360 runoff. This Urgency Ordinance targets Priority Building Materials that may contain relatively high levels of PCBs, specifically in buildings constructed or remodeled between 1950 and 1980. The Priority Building Materials are caulking, thermal/fiberglass insulation, adhesive/mastic, and rubber window gaskets. Staff recommends that these Priority Building Materials be regulated during building demolition to prevent the materials and associated PCBs from potentially being released into the environment and transported to the Bay by stormwater runoff. This Urgency Ordinance requires the City to implement an assessment process for PCBs in building materials. It requires the City notify demolition permit applicants about the new requirement to conduct a PCBs in Priority Building Materials Screening Assessment. The PCBs in Priority Building Materials Screening Assessment is a two-step process to determine whether 1) the building proposed for demolition is high priority for PCBs-containing building materials based on the structure age, use, and construction type; and if so 2) demonstrate the presence or absence and concentration of PCBs in Priority Building Materials through existing information and/or representative sampling and chemical analysis. A building must first receive a determination on whether it is an applicable structure. It is anticipated that many projects will not involve the demolition of applicable structures. Demolition permit applicants for projects that do not involve applicable structures will only need to address initial screening questions and certify the answers. Applicants for building demolition permits should follow the directions in the PCBs in Priority Building Materials Screening Assessment Applicant Package (Applicant Package), provided by the Building Division of the Community Development Department upon an application for a demolition permit. The Applicant Package and screening assessment form will also be required as a Water Quality Control Program standard Condition of Approval through the plan review process. The Applicant Package contains an overview of the process, Applicant instructions, a process flow chart, a screening assessment form, and the Protocol for Assessing Priority PCBs-Containing Materials before Building Demolition. Per the Applicant Package, for certain types of buildings built or remodeled between 1950 and 1980, the Applicant must conduct further assessment to determine whether or not PCBs are present at concentrations equal to or greater than 50 ppm. This determination is made with existing data if available, or by conducting representative sampling of the Priority Building Materials and analyzing the samples for PCBs at a certified laboratory. Any representative sampling and analysis must be conducted in accordance with the Protocol for Assessing Priority PCBs-Containing Materials before Building Demolition. More details are contained in the Applicant Package. When the Screening Assessment identifies one or more Priority Building Materials containing PCBs, the Applicant must comply with the relevant and applicable federal and state laws, including potential notification to the appropriate regulatory agencies such as the U.S. Environmental Protection Agency (USEPA), the Regional Water Board, and/or the State Department of Toxic Substances Control (DTSC). Agency contacts are provided in the Applicant Package. Additional sampling for and abatement of PCBs may be required. Depending on the method of sampling and removing building materials containing PCBs, the Applicant may need to notify or seek advance approval from USEPA before building demolition. Even in circumstances where advance notification to or approval from USEPA is not required before demolition, the disposal of PCBs waste is regulated under the Toxic Substances Control Act (TSCA). Additionally, the disposal of PCBs waste is subject to California Code of Regulations (CCR) Title Page 3 City of San Leandro Printed on 6/12/2019 217