EPA Office of Water (OW): 303(d) Listed Impaired Waters by Causes of Impairment and Probable Sources

Under Section 303(d) of the CWA, states, territories, and authorized tribes (referred to here as states) are required to develop lists of impaired waters. These are waters that are too polluted or otherwise degraded to meet the state water quality standards. The law requires that these jurisdictions establish priority rankings for waters on the lists […]

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EnviroAtlas – Biodiversity Metrics by 12-digit HUC for the Southwestern United States

This EnviroAtlas dataset was produced by a joint effort of New Mexico State University, US EPA, and the US Geological Survey (USGS) to support research and online mapping activities related to EnviroAtlas. Ecosystem services, i.e., services provided to humans from ecological systems, have become a key issue of this century in resource management, conservation planning, […]

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Demographics for US Census Tracts – 2012 (American Community Survey 2008-2012 Derived Summary Tables)

This map service displays data derived from the 2008-2012 American Community Survey (ACS). Values derived from the ACS and used for this map service include: Total Population, Population Density (per square mile), Percent Minority, Percent Below Poverty Level, Percent Age (less than 5, less than 18, and greater than 64), Percent Housing Units Built Before […]

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EnviroAtlas – Des Moines, IA – Ecosystem Services by Block Group

This EnviroAtlas dataset presents environmental benefits of the urban forest in 312 block groups in Des Moines, IA. Carbon attributes, temperature reduction, pollution removal and value, and runoff effects are calculated for each block group using i-Tree models (www.itreetools.org), local weather data, pollution data, EPA provided city boundary and land cover data, and U.S. Census […]

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EPA Facility Registry Service (FRS): Facility Interests Dataset Download

This downloadable data package consists of location and facility identification information from EPA’s Facility Registry Service (FRS) for all sites that are available in the FRS individual feature layers. The layers comprise the FRS major program databases, including: Assessment Cleanup and Redevelopment Exchange System (ACRES) : brownfields sites ; Air Facility System (AFS) : stationary […]

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Demographics for US Census Tracts – 2010 (American Community Survey 2006-2010 Derived Summary Tables)

This map service displays data derived from the 2006-2010 American Community Survey (ACS). Values derived from the ACS and used for this map service include: Total Population, Population Density (per square mile), Percent Minority, Percent Below Poverty Level, Percent Age (less than 5, less than 18, and greater than 64), Percent Housing Units Built Before […]

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EnviroAtlas – Austin, TX – Ecosystem Services by Block Group

This EnviroAtlas dataset presents environmental benefits of the urban forest in 750 block groups in Austin, Texas. Carbon attributes, temperature reduction, pollution removal and value, and runoff effects are calculated for each block group using i-Tree models (www.itreetools.org), local weather data, pollution data, EPA provided city boundary and land cover data, and U.S. Census derived […]

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