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2450 Washington Avenue Apartments 12 October 2011 POTENTIALLY POTENTIALLY SIGNIFICANT LESS THAN ISSUES SIGNIFICANT UNLESS SIGNIFICANT IMPAOCT SOURCES ISSUES MITIGATION IMPACT INCORPORATED disposal of hazardous materials? b. Create a significant hazard to the public or the X 4,7 environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? c. Emit hazardous emissions or handle hazardous or X 4,7 acutely hazardous materials, substances, or waste within one - quarter mile of an existing or proposed school? d. Be located on a site which is included on a list of X 4,7 Hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would - it - create — significant hazardA the public o thr – environment? e. For a project located within an airport land use plan or, X 4,7 where such a plan has not been adopted, within 2 miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the project area? f. For a project within the vicinity of a private airstrip, X 4,7 would the project result in a safety hazard for people residing or working in the project area? g. Impair implementation of or physically interfere with X 4,7 an adopted emergency response plan or emergency evacuation plan? h. Expose people or structures to a significant risk of loss, X 4,7 injury or death involving wildland fires, including where wildlands are adjacent to urbanized areas or where residences are intermixed with wildlands? EXPLANATION: a -d) The Site was formerly part of the Singer - Friden business machine, calculator, circuit board, cash register, and sewing. machine manufacturing plant from approximately 1965 through 1976. The Singer - Friden site has been identified as having soil and groundwater contaminated with a variety of chemicals including trichloroethene (TCE) and tetrachloroethylene (PCE). The majority of the contamination was limited to the former manufacturing areas which were north and west of the site, according to the Phase I Environmental Site Assessment prepared by Secor (November 5, 2007). A review of regulatory agency databases for the site and surrounding area along with a review of agency documents did not indicate the presence of any underground storage tanks (USTs) or historic USTs at the site. No significant surface staining or other evidence of illegal dumping or use of hazardous materials was noted at the site during the Secor site reconnaissance. The site has been occupied by the existing building for over 30 years, therefore, any residual agricultural chemicals for the previous orchard uses are not a significant concern. The existing building was constructed in the mid 1960's and was used by Singer - Friden for research and development only. The adjacent site has been identified as having soil and groundwater contaminated with a variety of chemicals, the majority of which was limited to the former manufacturing uses north and west of the project site. In March, 2003, the California Department of Toxic Substances Control (DTSC) issued a letter indicating that concentrations of TCE, volatile organic compounds (VOCs), chromium, and lead in on -site soils and soil gas would not pose a threat to human health or the environment and that no further remedial action is necessary at the site. Secor (November, 2007) reviewed a report from Westinghouse Electric Corporation Industry Services Divisions documenting the removal of the PCB transformer oil in the one on -site transformer located outside the east side of the building. The action taken was that the main circuit breaker was removed and replaced with another Westinghouse type PA frame circuit breaker rated I200 Amp trip. All breaker settings were left on the new breaker as found on the old breaker. All transformer oil was removed and the entire tank compartment was flushed with new oil. The tank was then 2450 Washington Avenue Apartments 12 October 2011