Since 1984 water quality, plankton, benthos, and fish have been monitored on a semimonthly to monthly basis at 2-12 sites in the tidal freshwater Potomac in and around Gunston Cove, Virginia. Annual reports are available by contacting Dr. Chris Jones at (703) 993-1127.  Further information and some recent reports are available below:

Parameters and sampling frequencies by year
Map
Annual Report: 1998-99
Bibliography

NEW: Annual Report: 2003-04. Entire report in pdf format. About 6 MB.