National Water-Quality Assessment (NAWQA) Program

   Home    Headlines    Featured Studies    Liaison Committee    Informing Decision Makers    Data    Modeling/Software    Publications    Maps

General Information

Headlines, Activities, and Publications

2014

Mercury in the Nation's Streams - Levels, Trends, and Implications

Pesticides Still a Concern for Aquatic Life in U.S. Rivers and Streams (September 2014)

New USGS Health-Based Screening Levels Available (July 2014)

Human Activities Increase Salt Content in Many of the Nation's Streams (June 2014)

Trends in Nutrients and Pesticides in the Nation's Streams and Rivers (April 2014)

Tracking Nutrient Inputs to the Nation's Estuaries and Great Lakes (March 2014)

New Online, Interactive Sediment Data Portal (January 2014)

 

2013

Nitrate in the Mississippi River and Its Tributaries, 1980 to 2010: Are we making progress? (October 2013)

Factors Affecting Public-Supply-Well Vulnerability to Contamination (August 2013)

USGS Maps Show the National Distribution and Trends of Pesticide Use, 1992-2009 (May 2013)

NAWQA's Priorities and Strategies for 2013-2023 (April 2013)

Proposed 2014 Budget--Impacts to Lon-term Monitoring and Modeling

 

2012

Radium occurrence and geochemistry in groundwater in the U.S. (press release, reports, and FAQs) (February 15, 2012)

Effects of Urban Development on Stream Ecosystems (press release, publications)

Quarterly Highlights (vol 5, vol 4, vol 3, vol 2, vol 1) (April 2012)

A National Assessment of Changes in Chloride, Dissolved Solids, and Nitrate in Groundwater (press release, report) (April 27, 2012)

Revised Health-Based Screening Levels available for 48 contaminants (April 10, 2012)

Radium occurrence and geochemistry in groundwater in the U.S. (press release, reports, and FAQs) (February 15, 2012)

 

2011

Regional Assessments of Nutrient Sources and Transport to Streams, Reservoirs, and Estuaries (Online Decision Support System, articles, press release, stakeholder quotes) (September 6, 2011)

Arsenic, Uranium and Other Trace Elements, a Potential Concern in Private Drinking Wells (press release, report and supporting data) (August 30, 2011)

No Consistent Declines in Nitrate Levels in Large Rivers in the Mississippi River Basin (press release, article and related graphics) (August 8, 2011)

PAHs Increasing in Urban U.S. Lakes (fact sheet, presentation/video, FAQs, publications and additional information) (Congressional Briefing, April 14, 2011)

Tillage practices in the conterminous United States, 1989-2004, aggregated by watersheds (report) (March 29, 2011)

Organic carbon in our Nation's surface waters--Sink or Source? (report, technical announcement) (March 4, 2011)

Online guide to diatoms of the U.S. (guide, technical announcement) (January 25, 2011)

Regional Assessments of Nutrient Sources and Transport to Streams, Reservoirs, and Estuaries (articles, press release) (September 6, 2011)

Arsenic, Uranium and Other Trace Elements, a Potential Concern in Private Drinking Wells (press release, report and supporting data) (August 30, 2011)

No Consistent Declines in Nitrate Levels in Large Rivers in the Mississippi River Basin (press release, article and related graphics) (August 8, 2011)

PAHs Increasing in Urban U.S. Lakes (fact sheet, presentation/video, FAQs, publications and additional information) (Congressional Briefing, April 14, 2011)

Quarterly Highlights (vol 2, vol 1) (April 5, 2011)

Tillage practices in the conterminous United States, 1989-2004, aggregated by watersheds (report) (March 29, 2011)

Organic carbon in our Nation's surface waters--Sink or Source? (report, technical announcement) (March 4, 2011)

Online guide to diatoms of the U.S. (guide, technical announcement) (January 25, 2011)

2010