Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2016

Publication Date

2017-09-13

Start Date

1963-10-01

End Date

2016-09-30

Deacon, J.R., Lee, C.J., Norman, J.E., and Reutter, D.C., 2017, Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2016: U.S. Geological Survey data release, https://doi.org/10.5066/F73777K4.

The U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project characterizes the status and trends of water quality and aquatic ecosystems by monitoring ambient water-quality and ecological conditions through the newly established National Water Quality Network (NWQN) for Rivers and Streams. The NWQN is the primary source of data for the systematic annual reporting of ambient conditions nationally. Primary objectives of the NWQN are to: • determine the status and trends of loads and concentrations of contaminants, nutrients, and sediment in the Nation's large rivers, including loads to selected major estuaries; • determine the status and trends of concentrations of contaminants, nutrients, and sediment for selected wadeable streams in selected land-use and environmental settings; and • determine trends in ecological condition in relation to trends in contaminants, nutrients, sediment, and streamflow alteration for selected wadeable streams in selected land-use and environmental settings. In an effort to meet these objectives, the USGS Tracking Water Quality webpage (http://cida.usgs.gov/quality/rivers/home) is being updated with nutrient and pesticide concentration and load data collected from the NWQN. These metadata describe 9 data tables that are part of this data release.

• National Water-Quality Assessment Project
• USGS Data Release Products

Data source

Input directly