Know what's in your well water

County-by-county well water risks, certified labs, and what to test for, built from public health and USGS data.

Choose your county

  • Lower
  • Middle
  • Higher

USGS estimate of people on private wells who may have arsenic above the drinking water limit.

Built from USGS, EPA and Connecticut Department of Public Health data

Connecticut state page

  1. Check your county's risks
  2. Test at a certified lab
  3. Fix what you find

Covering Connecticut first. More New England states coming soon.