DEQ monitors water quality in rivers, lakes and estuaries at more than 2,100 locations to detect pollutants and to assess pollution prevention efforts. Information is available on:

Special Studies

• Characterization of 2011 and 2012 Base Flow and Pulse Flow Water Quality in the Jackson River 
• Characterization of 2010 Base Flow and Pulse Flow Water Quality in the Jackson River
• James River Park water quality report
• Statewide fish and sediment analyses
• South River/South Fork Shenandoah River mercury information
• Dan River PCB information
• Mountain Run (Culpeper County) PCB information
• Roanoke (Staunton) River PCB information

Total Maximum Daily Load

• Virginia DEQ TMDL homepage

Water Quality Assessment Guidance

• 2012 Water Quality Assessment Guidance 
• 2010 Water Quality Assessment Guidance (PDF - published April 7, 2010)

Water Quality Assessment

• 2012 Water Quality Assessment 305(b)/303(d) Integrated Report 
• 2010 Water Quality Assessment 305(b)/303(d) Integrated Report
  For Water Quality Reports released prior to 2010 please contact Cleo Stevens or Tish Robertson.

Water Quality Monitoring

• 2012 Water Quality Monitoring Plan
  This report provides information on stream and reservoir conditions and serves as a water quality management tool. This is the first resource for those interested in general or detailed water quality data for Virginia.
• Probabilistic Monitoring Program
  For more information or Water Monitoring Reports released prior to 2012 please contact:
  Roger Stewart
  (804) 698-4449
  Roger.Stewart@deq.virginia.gov            

Other Monitoring Reports

• 2011 Reduction of Toxics in State Waters Report
  A report on the prevention of contamination of the Commonwealth's waters by toxics, the continued monitoring of those waters for the presence of toxics, and the implementation of remedial measures to reduce and/or eliminate toxics found in the state's waters.
  For Toxics Reports for 2001 thru 2010 please contact:
  Donald H. Smith
  (804) 698-4429
  Donald.Smith@deq.virginia.gov