Water Resources


Browse the list below for news, announcements, events, project updates, and other information related to the Water Resources Mission Area.

Filter Total Items: 501
Date published: January 9, 2020

Herbicide glyphosate prevalent in U.S. streams and rivers

The herbicide glyphosate was detected at least once in 66 of 70 U.S. streams and rivers located in a range of land-use settings, according to a recent study by the U.S. Geological Survey National Water Quality Program. Glyphosate is the active ingredient in the popular weed killer Roundup® and is the most widely used herbicide in...

Date published: January 7, 2020

Targeted management of a small number of catchments may help reduce nitrogen loading to Chesapeake Bay

A new USGS study uses the SPARROW (SPAtially Referenced Regression On Watershed attributes) model to assess how nitrogen loading to the Chesapeake Bay might change in response to changing different sources of nitrogen inputs. The largest reduction in load is predicted to occur if nitrogen fertilizer applied to agricultural land is decreased.

Date published: December 16, 2019

Phosphorus and River Water Quality

Investigating the effects of historical phosphorus on current river water quality. 

Attribution: Water Resources
Date published: November 25, 2019

Next Generation Water Observing System Partnership Announcement

The U.S. Geological Survey is seeking information from industry, academia, nonprofits, and research institutions on innovative technologies that should be considered for inclusion in the USGS Next Generation Water Observing System (NGWOS).

Attribution: Water Resources
Date published: November 12, 2019

Urban growth in the southeastern U.S. potentially threatens health of small streams

Projected impacts include widespread loss of fish and invertebrate species in the region

Date published: October 21, 2019

Southeast streams see loss of native fish species and increased species “homogenization” among streams

Southeast streams are becoming less biologically unique, according to a new study by the U.S. Geological Survey. Fish species present in any given Southeast stream are becoming more similar to those present in other Southeast streams, a phenomenon known as homogenization that is considered an emerging...

Date published: October 17, 2019

Software Release - RSPARROW: An R system for SPARROW modeling

RSPARROW, now available on the USGS GitLab repository, provides the first open-source version of the USGS SPARROW water-quality model, with new features that improve the utility of the model for conducting studies of contaminants in surface waters and informing water resource management decisions.

Date published: September 26, 2019

Equus Beds Aquifer Water Quality Nearly Unchanged between 2001 and 2016

Study Shows Water Quality Minimally Affected by Artificial Recharge

Date published: September 18, 2019

Managing phosphorus in U.S. streams and rivers still a challenge

Despite decades of efforts to reduce phosphorus loads in streams, phosphorus continues to be a problem in many U.S. streams and rivers, causing explosive growth of aquatic plants and algae, including formation of harmful algal blooms. A new study by the U.S. Geological Survey National Water Quality Program investigates why.

Date published: September 12, 2019

Groundwater age-dating simplified

A new USGS report documents a simple method to classify groundwater age as premodern (recharged before 1953), modern (recharge in 1953 or later), or a mix of the two. The method—tritium-based age classification, or TBAC—requires just a single measurement of tritium, along with knowledge of sample date and location...

Date published: September 5, 2019

USGS Scientists Document Hurricane Dorian’s Impacts

Editor’s Note: This story was revised Sept. 10, 2019 to include the later phases of USGS’ response to Hurricane Dorian.

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Dorian, visit the USGS Hurricane Dorian page at www.usgs.gov/dorian.