Learn the Issues
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National Rivers & Streams Assessment 2008-2009 Quality Assurance Project Plan
National Rivers & Streams Assessment 2008-2009 Quality Assurance Project Plan
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National Wetland Condition Assessment 2016 Site Evaluation Guidelines
National Wetland Condition Assessment 2016 Site Evaluation Guidelines
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National Wetland Condition Assessment 2011 Site Evaluation Guidelines
National Wetland Condition Assessment 2010 Site Evaluation Guidelines
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Analyses and Reports for Setting Greenhouse Gas (GHG) Emissions Standards for Cars and Trucks
This page provides reports and analyses for setting GHG emissions standards for cars and trucks
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National Wetland Condition Assessment 2011 Field Operations Manual
National Wetland Condition Assessment 2011 Field Operations Manual
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National Coastal Condition Report III Factsheet
The National Coastal Condition Report III (NCCR III) is the third in a series of environmental assessments of U.S. coastal waters and the Great Lakes. The report includes assessments of the nation’s estuaries in the contiguous 48 states and Puerto Rico.
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National Coastal Condition Report IV Factsheet
Overall condition of the Nation’s coastal waters is fair. This rating is based on five indices of ecological
condition: water quality index, sediment quality index, benthic index, coastal habitat index, and fish tissue contaminants index. -
National Coastal Condition Assessment 2010 Site Evaluation Guidelines
National Coastal Condition Assessment 2010 Site Evaluation Guidelines
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National Lakes Assessment 2007 Quality Assurance Project Plan
National Lakes Assessment 2007 Quality Assurance Project Plan
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National Lakes Assessment 2007 Field Operations Manual
National Lakes Assessment 2007 Field Operations Manual
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National Coastal Condition Assessment 2010 Field Operations Manual
National Coastal Condition Assessment 2010 Field Operations Manual
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National Wetland Condition Assessment 2011 Lab Operations Manual
National Wetland Condition Assessment 2011 Lab Operations Manual
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National Coastal Condition Assessment 2010 Quality Assurance Project Plan
National Coastal Condition Assessment 2010 Quality Assurance Project Plan
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National Coastal Condition Report I Factsheet
The National Coastal Condition Report describes the ecological and environmental conditions in U.S. coastal waters. This first-of-its-kind Report, presents a broad baseline picture of the overall condition of U.S. coastal waters as fair to poor.
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National Wetland Condition Assessment 2011 Quality Assurance Project Plan
National Wetland Condition Assessment 2011 Quality Assurance Project Plan
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National Coastal Condition Assessment 2015 Design
This is the design documentation for the National Coastal Condition Assessment in 2015.
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National Lakes Assessment 2012 Design
This is the design document for the National Lakes Assessment in 2012.
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National Rivers & Streams Assessment 2013/14 Quality Assurance Project Plan
The Quality Assurance Project Plan for the NRSA 2013/14
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Within Year Temporal Variability in Water Chemistry - A White Paper
This page includes a pdf of a white paper by Herlihy and Sifneos, 2017 called Within-Year Temporal Variability in Water Chemistry in EPA's National Aquatic Resource Surveys (2000-2014)
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Air Quality Dispersion Modeling - Related Model Support Programs
Programs and utilities that are used in support of some of the dispersion models listed here. Note that utilities designed for use with particular models will be found with those models.