There are approximately 342,356 private residential wells in Connecticut that serve about 23% of the State’s population, more than 837,000 people (based on 2020 census). Private wells supplying residential homes for domestic use are not currently regulated by the United States Environmental Protection Agency (EPA). Private well owners are responsible for testing the quality of their own drinking water and maintaining their own wells. However, CT Local Health Departments and Districts have authority over private wells in their respective towns for proper siting and approval before construction. For technical assistance on well construction, maintenance, water quality or water treatment please contact the CT Department of Public Health, Private Well Program at        860-509-8401, DPH.PrivateWellProgram@ct.gov
 

• Private Well Testing

• CTDCP Registered Well Driller's Rosters (PDF Instructions)

• Disinfection Procedure for Private Wells (Publication #27)

• Private Well: Best Management Practice Checklist

• Private Well Water Treatment: How to Get Started and
  Helpful Resources

• Drought Status: Connecticut Water Status Website

• List of Approved Laboratories

• For Real Estate Professionals – Educational Materials Concerning Private Well Testing




• Why Should I Test My Private Drinking Well? (Video)

• What Chemicals Should I Test For? (Video)

• My Test Results Show Elevated Levels - What Are My Options? (Video)