Science & Technology
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Ecoregions of North America
Information and downloadable maps and datasets for ecoregions of North America, which are areas of general similarity in the type, quality, and quantity of environmental resources.
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Exceptional Events Documents Ozone - New Jersey
Exceptional Events Documents Ozone - Massachusetts
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NHDPlus Tools
A list of tools used in conjuction with NHDPlus version 2.
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Learn More about Water Quality Data
The STORET (short for STOrage and RETrieval) Data Warehouse is a repository for water quality, biological, and physical data and is used by state environmental agencies, EPA and other federal agencies, universities, private citizens, and many others.
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Map Design & Cartography at the EPA
This web page describes cartography best practices at the EPA
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Guidance for Using Tribal Boundaries, Areas and Names Resources
Webpage highlighting the Guidance for Using EPA Tribal Boundaries, Areas and Names Resources.
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Previous NEI Reports
Previous reports for the 2011 and 2008 NEIs.
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Emissions Inventory System (EIS) User's Manual and How To's
Emissions Inventory System (EIS) documentation.
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2014-2016 Version 7 Air Emissions Modeling Platforms
The 2014-2016 Version 7 emissions modeling platforms are based on 2014 NEIv2.
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Health Effects Notebook for Hazardous Air Pollutants
Health Effects Notebook - Health Effects Fact Sheets
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Including Energy Efficiency and Renewable Energy Policies in Electricity Demand Projections
Find more information on how state and local air agencies can identify on-the-books EE/RE policies, develop a methodology for projecting a jurisdiction's energy demand, and estimate the change in power sector emissions.
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Valuing Aquatic Ecosystem Health at a National Scale: Modeling Biological Indicators Across Space and Time
This is a working paper titled "Valuing Aquatic Ecosystem Health at a National Scale: Modeling Biological Indicators Across Space and Time"
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Working Paper: When it Rains, it Pours: Severe Weather Events, Flooding, and Drinking Water Quality
This is a working paper titled "When it Rains, it Pours: Severe Weather Events, Flooding, and Drinking Water Quality "
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EPA Technologies Available for Licensing:
Find EPA hazardous substances and contaminated site patented technologies available to be licensed, such as the Method to Predict Degradation of a Landfill.
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Process for Developing Dioxin Cleanup Decisions at Superfund Sites
Access guidance about cleanup work at Superfund sites with dioxin contamination.
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Asbestos at Superfund Sites: Technical Resources
Access a range of technical and informational resources related to the investigation and cleanup of asbestos contamination at Superfund removal and remedial sites.
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Superfund Contaminated Sediments: Guidance and Technical Support
Access a list of guidance and technical support documents for managing Superfund sediment sites.
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CHIEF Archive Search
Search page for CHIEF archive on www3
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WhAEM2000 BBM Files - Bradshaw Mountains, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Bradshaw Mountains Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Boulder City, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Boulder City Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.