The U.S. Geological Survey National Water Quality Network—Surface Water, 2024

General Information Product 259
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Abstract

The U.S. Geological Survey (USGS) National Water Quality Network for surface water (NWQN-SW) was established in 2013 to develop long-term, comparable assessments of surface-water quality in support of national, regional, State, and local needs related to water-quality management and policy. Water-quality samples are collected at each site and measured for a variety of constituents. In 2024, the NWQN-SW consisted of 105 sites, each of them paired with a streamgage, operated by the USGS or other agencies that provide continuous information on streamflow conditions. The water-quality data and the streamflow information from the NWQN-SW are then used to assess the status and trends of water-quality conditions and potential impacts on human and aquatic health.

Suggested Citation

Riskin, M.L., 2025, The U.S. Geological Survey National Water Quality Network—Surface Water, 2024: U.S. Geological Survey General Information Product 259, https://doi.org/10.3133/gip259.

ISSN: 2332-354X (online)

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title The U.S. Geological Survey National Water Quality Network—Surface Water, 2024
Series title General Information Product
Series number 259
DOI 10.3133/gip259
Publication Date August 11, 2025
Year Published 2025
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) WMA - Observing Systems Division
Description 1 p.
Country United States
Online Only (Y/N) Y
Additional publication details