The Virginia Department of Environmental Quality is concerned about the potential for a significant drought in Northern Virginia. A ‘drought watch’ advisory has been issued for all Northern Virginia and the Northern Piedmont. In the Northern Virginia region, the drought watch advisory applies to public or private groundwater supplies or private surface water supplies in Fauquier, Prince William and Loudoun counties. Water systems using the Potomac River or Occoquan Reservoir are not affected at this time, according to Bill Hayden, a department spokesperson. “New record low water levels for March have been recorded in two long-term observation wells in Fauquier and Orange counties,” Hayden…