USGS - science for a changing world

Water-Quality Loads and Trends at Nontidal Monitoring Stations in the Chesapeake Bay Watershed


This web site is dedicated to providing water-quality load and trend results for the nontidal rivers of the Chesapeake Bay watershed.

What are the Objectives of the Chesapeake Bay Nontidal Monitoring Program?

How the Program Works

What Data and Related Information Are Available?

Methods, data, results, and interpretations are available for

new itemWater Year 2015 load and trend results are now available for the following 9 major rivers with the longest water-quality records:

  • Choptank River near Greensboro, Md, (01491000)
  • Susquehanna River at Conowingo, Md. (01578310)
  • Patuxent River near Bowie, Md. (01594440)
  • Potomac River at Chain Bridge at Washington, D.C. (0164580)
  • Rappahannock River near Fredericksburg, Va. (01668000)
  • Pamunkey River near Hanover, Va. (01673000)
  • Mattaponi River near Beulahville, Va. (01674500)
  • James River at Cartersville, Va. (02035000)
  • Appomattox River at Matoaca, Va. (02041650)

new itemDOWNLOAD 2015 Results

Load and trend results remain available for the rest of the monitoring network through the 2014 water year, and will be updated through 2016 next year.

new itemCLICK HERE for a summary of results through water year 2015

CLICK HERE for a summary of results through water year 2014

location of nontidal stations
Click on the image above to access the interactive map

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Web Administrator
Page Last Modified: Tuesday, 13-Sep-2016 10:24:51 EDT