Data and Tools
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Air Modeling - Guidance for Air Toxics Modeling
This section provides miscellaneous guidance documents other than permit modeling or State Implementation Plan (SIP) attainment demonstrations.
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National Air Quality: Status and Trends of Key Air Pollutants
EPA sets national air quality standards for six common air pollutants. Each year EPA tracks the levels of these air pollutants in the air. EPA posts the results of our analyses to this web site.
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Exceptional Events Documents Ozone - New Jersey
Exceptional Events Documents Ozone - Massachusetts
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RadNet Operator Definition
RadNet is a national network monitoring stations that regularly samples the nation's air, precipitation, drinking water, or pasteurized milk for a variety of radionuclides and radiation types.
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Particulate Matter NAAQS Review - Analyses and Data Sets
Analyses and data sets for the Particulate Matter NAAQS review
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NHDPlus Tools
A list of tools used in conjuction with NHDPlus version 2.
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The Reach Address Database (RAD)
The Reach Address Database (RAD) stores reach address information for each Water Program feature that has been linked to the underlying surface water features (streams, lakes, etc) in the National Hydrology Database (NHD) Plus dataset.
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EPA Quality Management Tools for Organizations
Selection of Quality Management tools related to organizations/programs
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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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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.
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WhAEM2000 BBM Files - Blythe, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Blythe Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Bagdad, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Bagdad Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Atascosa Mountains, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Atascosa Mountains Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Alamo Lake, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Alamo Lake Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM2000 BBM Files - Ajo, Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Ajo Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.
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WhAEM BBM Files - Arizona
WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for quadrangles in Arizona. Files serve as geographic basis for groundwater modeling.
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Region 8 Targeted Brownfields Assessments
Information about targeted brownfields assessments in EPA Region 8 (Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 28 Tribal nations)
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Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.7
the document for Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.7, December 2018