Conducted for the USGS’s 3D Elevation Program (3DEP), the lidar survey involved collaboration with the USGS Earth Resources Observation and Science Center (EROS), National Geospatial Program (NGP) and ...

Potomac River Tap Water Has Small Levels of Contaminants. By David A. Fahrenthold. December 5, 2008 at 7:00 p.m. EST. Share. Add to your saved stories.

Intersex Fish Linked To Population And Agriculture In Potomac River Watershed Date: February 11, 2008 Source: US Geological Survey Summary: For several years, scientists have been working to ...

Potomac River: 10-fold increase in native submerged vegetation reflects improved water quality Date: September 8, 2010 Source: United States Geological Survey ...

The 12-day heat wave that just ended in Washington turned the Potomac River to veritable bath water. On the river at Little Falls, Sunday’s 93.7 degree reading 4.1 feet from the shoreline is the ...

The Potomac River in Washington, D.C. is showing multiple benefits from restoration efforts, newly published research suggests. Reduced nutrients and improved water clarity have increased the ...

Latest Documents. Mount Vernon Gazette: June 18, 2025 Published June 18, 2025 Alexandria Gazette Packet: June 18, 2025 Published June 18, 2025 Fairfax Connection: June 18, 2025 Published June 18, 2025 ...

During August alone, the flow of fresh water from the Potomac to the bay averaged 6.7 times normal — the most in USGS records. So Fran’s added torrents could do little but run off.

Streamflow of the Potomac River has been so low for the past five days that hourly drought monitoring has been required for the area's prime drinking water supply.

If it’s something we’re using, ultimately it’s going to end up in the water.” In 2006, USGS discovered in some Potomac tributaries, including the Shenandoah River in Virginia, nearly all of the male ...

A WaterWatch map from the U.S. Geological Survey (USGS) shows countless rivers have already reached flood stage, with some of those rivers being measured 1,000 percent of their normal level or more.

With the ongoing lack of substantial rain, the streamflow of the Potomac River is so low that hourly drought monitoring has been triggered for the area’s prime drinking water supply.