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Federal
US EPA Nonattainment Areas and Designations-Annual PM2.5 (2012 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: PM2.5 Annual 2012 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name... -
Federal
US EPA Nonattainment Areas and Designations-24 Hour PM2.5 (2006 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layers: PM2.5 24hr 2006 NAAQS State Level and PM2.5 24hr 2006 NAAQS National. Full FGDC metadata records for each layer may be... -
Federal
Region 1 Engineered Controls Points
U.S. Environmental Protection Agency —
Point locations of certain engineered controls on RCRA sites in EPA Region 1. Locations are accurate as of 4/15/2020 and should have corresponding information in... -
Federal
Chemical Data Release (CDR) Commercial Uses, 2012
U.S. Environmental Protection Agency —
This layer displays points of commercial uses extracted from the 2012 Chemical Data Reporting (CDR) database. The CDR database contains comprehensive use and exposure... -
Federal
Level IV Ecoregions of EPA Region 1
U.S. Environmental Protection Agency —
Ecoregions by EPA region were extracted from the seamless national shapefile. Ecoregions denote areas of general similarity in ecosystems and in the type, quality,...