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1333 Martinez Street,San Leandro,California;Chang Income Property Partnership,LP(property owner)do Westlake Development Partners,LLC(applicant) DRAFT MITIGATION MONITORING PROGRAM (MMP) MONITORING IMPACT MITIGATION REQUIRED RESPONSIBILITY TIMING Mitigation Measure#9(Continued) Hazards and Hazardous investigations of soil, sail gas and/or groundwater beneath the Materials(Continued) Sites. Construction impact mitigation measures are described below. • Site Control: Site control procedures shall be implemented to City of San Leandro Prior to issuance of Grading • control the flow of personnel,vehicles and materials in and out of Community Development Permit • the Sites while working in known contaminated areas. Department and (Currently, there are no known contaminated areas.) The control Environmental Services measures described below will help control the spread of COPCs. Division of the Public • The perimeter of the sites shall be fenced. Access and egress Works Department shall be controlled at the appropriate locations. Signs will be posted instructing visitors to sign in at the project support areas at all site entrances. • Equipment Decontamination: Contractors whose vehicles and construction equipment contact soil that is suspected of being contaminated shall be required to clean the equipment upon leaving the contaminated area. A decontamination area will be • established near the construction exit of each area. Soil will be removed from the equipment and vehicles before leaving the • contaminated area. Cleaning methods used may include dry methods, such as brushing, scraping, or vacuuming. If dry methods are not effective,wet methods,such as steam cleaning or pressure-washing, should be used. The contractor will contain, manage, and collect samples of the rinse water for analytical ' testing by a state certified laboratory prior to appropriate disposal. Decontamination procedures shall be developed and implemented by the construction' contractor to minimize the possibility that equipment releases contaminated soil onto public • roadways or to on-Site areas containing "clean" cover materials or new paving. • Personal Protective Equipment: Personal Protective Equipment (PPE) and clothing shall be used to isolate workers from COPCs and physical hazards. The minimum level of protection for workers coming into direct contact with contaminated materials will be Level D: • o Coveralls or similar clothing, o Reflective safety vests, o Work gloves,as necessary, o Steel-toed boots, • o Safety glasses,as necessary, 1333 Martinez Street,Westlake Officelfechnology Campus—Draft MMP Page 5