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Environmental Checklist Hazards and Hazardous Materials
<br /> Initial Study – Mitigated Negative Declaration 51
<br />2017). Analytical results from the soil gas sampling event conducted on September 19, 2016,
<br />indicated VOCs were detected for all five soil gas probes above laboratory reporting limits. However,
<br />all soil gas sample results were below the commercial/industrial Environmental Screening Levels
<br />(ESLs) for soil gas vapors below the building slab or sub-slab. With the exception of PCE results in
<br />three soil gas probes, all soil gas sample results were below the residential ESLs.
<br />Impact Analysis
<br />a. Would the project create a significant hazard to the public or the environment through the
<br />routine transport, use, or disposal of hazardous materials?
<br />b. Would the project create a significant hazard to the public or the environment through
<br />reasonably foreseeable upset and accident conditions involving the release of hazardous
<br />materials into the environment?
<br />Construction Activities
<br />The project would involve the the construction of a new 159,450-square-foot, single-story building,
<br />parking, and landscape improvements. Construction activities may include the temporary transport,
<br />storage, use, or disposal of potentially hazardous materials including fuels, lubricating fluids,
<br />cleaners, solvents, or contaminated soils. If spilled, these substances could pose a risk to the
<br />environment and to human health. However, the transport, storage, use, or disposal of hazardous
<br />materials would be subject to federal, state, and local regulations pertaining to the transport, use,
<br />storage, and disposal of hazardous materials, which would assure that risks associated with
<br />hazardous materials are minimized. The transport of any hazardous materials would be subject to
<br />federal, state, and local regulations, which would assure that risks associated with the transport of
<br />hazardous materials are minimized. In addition, construction activities that transport hazardous
<br />materials would be required to transport such materials along designated roadways in the city,
<br />thereby limiting risk of upset.
<br />Implementation of the project would require demolition of three warehouse type buildings, which
<br />due to their age (built between 1957 and 1963), may contain asbestos, PCBs, and/or lead-based
<br />paint. Structures built before the 1970s typically contained asbestos containing materials (ACM).
<br />Because the building was constructed before the time of the federal ban on the manufacture of
<br />PCBs, it is possible that light ballasts in the onsite building contains PCBs. Demolition of this
<br />structure could result in health hazard impacts to workers if not remediated prior to construction
<br />activities. However, demolition and construction activities would be required to adhere to BAAQMD
<br />Regulation 11, Rule 2, which governs the proper handling and disposal of ACM for demolition,
<br />renovation, and manufacturing activities in the Bay Area, and California Occupational Safety and
<br />Health Administration (CalOSHA) regulations regarding lead-based materials. The California Code of
<br />Regulations, §1532.1, requires testing, monitoring, containment, and disposal of lead-based
<br />materials, such that exposure levels do not exceed CalOSHA standards. DTSC has classified PCBs as a
<br />hazardous waste when concentrations exceed 50 parts per million in non-liquids, and the DTSC
<br />requires that materials containing those concentrations of PCBs be transported and disposed of as
<br />hazardous waste. Any light ballast that is removed would be evaluated for the presence of PCBs and
<br />managed appropriately. With adherence to BAAQMD, CalOSHA, and DTSC policies regarding ACM,
<br />lead-based paint, and PCBs, impacts would be less than significant.
<br />As the project would disturb over one acre of land, the applicant would be required to obtain
<br />coverage under the General Permit for Discharges of Storm Water Associated with Construction
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