Best Practices and Guidance for Flushing of Water After a Shutdown

• Stagnant Water and Health Risks
• The United States Environmental Protection Agency (EPA) Maintaining or Restoring Water Quality in Buildings with Low or No Use 
• The United States Centers for Disease Control (CDC) Guidance for Reopening Buildings After Prolonged Shutdown or Reduced Operations
• Association of State Drinking Water Administrators (ASDWA) COVID-19 Resources for Building Water Systems
• The Maryland Department of the Environment (MDE) Water Supply Program COVID-19 Public Water System Compliance Challenges and Helpful Links

Water Quality and Treatment

For general information from the Frederick County Health Department about ground water: Well Water Education 

For general information from the Frederick County Health Department about lead in drinking water: Lead in Well Water

For information from the EPA about lead in drinking water: Lead in Drinking Water from EPA

For information from the EPA about chromium in drinking water: Chromium in Drinking Water from EPA