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HomeMy WebLinkAboutS_Constr_Mitigation_D50_Description_170425_v1.pdfBOEING COMMERCIAL AIRPLANE GROUP RENTON WASHINGTON Boeing Replace sewer Lift station near 4-42, Fuel spill containment at Apron D, modify gate D-50 gate entrance MITIGATION DESCRIPTION Construction Mitigation Measures & Best Practices: All activities will begin with the implementation and installation of Best Management Practices (BMP). These practices include: Safety/ Environmental Pre-construction meeting The project will start with Boeing Environmental and Safety preconstruction to mitigate any risk associated with project Proposed Hauling/ Transportation routes Contractors will apply for their own hauling traffic control plans permits related to this project. And will follow a city approved route. Construction. The actual Construction will be accomplished by a Construction contractor. The contractor will call for all required inspections, as well as site pre-construction meeting. The contractor will keep records of any special inspections at the construction site  Flaggers will be used to reduce impacts  Activities will be scheduled during the City of Renton approved hours.  Dump trucks will have a cushion of sand to dampen loading noise.  Trucks will use trailers to reduce the number of trips.  Equipment will be shut off during standby activities to limit noise and exhaust.  Materials will be recycled to the extent possible minimizing debris, hauling and preservation of resources.  Activities will be overlapped as much as possible to shorted duration of overall construction duration. BOEING COMMERCIAL AIRPLANE GROUP RENTON WASHINGTON Storm Water - TECS Construction will start with the implementation and installation of Best Management Practices (BMP) for Temporary Erosion and Sedimentation Control (TESC) under supervision of Boeing Environmental personnel. All storm water drain inlets in and around the proposed construction operations and staging areas will be surrounded by oil absorbent padding to mitigate the potential of any hydraulic/fuel leakages emanating from construction machinery entering the watershed As a best management practice, any soil piles resulting from excavation activities will be covered with an impervious material, such as Vis -queen, to minimize and avoid erosion and to prevent silt from entering into the Cedar River Snow, Ice, dirt and mud removal Contractor shall remove snow and ice to the extent necessary to perform the work. The use of calcium chloride or other chemicals will not be permitted to remove snow or ice. Contractor shall assure that vehicles are constructed, loaded, maintained and covered as necessary to prevent the deposition of dirt, mud or other debris on public roadways. Dirt mud or debris shall be removed on continual basis. Any dirt, mud or debris dropped by vehicles shall be removed immediately. Dust Control Through the entire construction period the Contractor shall take all necessary steps to dust control all working area and unpaved roads. The use of calcium chloride or other chemicals will not be permitted for dust control. The Contractor will accomplish dust control by watering and sprinkling to satisfactorily settle the dust. Contractor shall comply with any requirements imposed by law to prevent fugitive dust emissions. All demolished materials and debris will be stockpiled on site to prevent dust and sedimentation from migrating onto roadways. Contractor vehicles that are transporting materials to and from the site will be required to have tires washed prior to leaving the site. This will prevent dust and sedimentation from entering nearby roadways. Airport Mitigation  A pre-construction meeting will set up with the Airport personnel.  The contractor will set up visual controls, and FOD controls including FOD fence.  Contractor will be in communication with airport tower during construction hours.  Contractor personnel will wear reflective vests on Airport apron at all times.