Description: The Massachusetts Department of Environmental Protection (MassDEP) Major Facilities data layer is a statewide point layer containing the location of a subset of facility types regulated by MassDEP’s Bureau of Air and Waste (Formerly the Bureau of Waste Prevention (BWP)).This layer contains the following major facility types: Facilities with Air Operating Permits (AIR) Hazardous Waste Recyclers (HWR) Hazardous Waste Treatment, Storage and/or Disposal Facilities (TSDF) Large Quantity Generators of MA-regulated Hazardous Waste (LQG_MA) Large Quantity Generators of EPA/RCRA-regulated Hazardous Waste (LQG_RCRA) Large Quantity Toxic Users (LQTU) The layer is stored and distributed as BWPMAJOR_PTData Universe: MassDEP’s Facility Master File Database (FMF)/Site Management System (SMS) database was queried to identify facilities engaging in the activities listed above. Methods and sources used for facility location include the following:Site-specific knowledge of BAW Compliance and Enforcement staff GPS field verification by MassDEP staff Surveys, site plans and locus maps from MassDEP records Interpolation of orthophoto imagery and parcel data from MassGIS Geocoding of FMF/SMS addresses using MassGIS Master Address Database (MAD)See related:Location Documentation Table (BWPMAJOR_PT_LDT) for documentation re: the types of features mapped, methods and sources used.Unlocated Sites List (BWPMAJOR_PT_USL) table for list of MassDEP Major Facilities that are unlocated and not included in this layer.
Copyright Text: MassDEP Bureau of Air and Waste (BAW)