Water Treatment in Tennessee

In Tennessee, public water systems are regulated by the Tennessee Department of Environment and Conservation (TDEC) under the federal Safe Drinking Water Act, and utilities must publish an annual water-quality report. Hardness varies with Tennessee's limestone geology, and many rural homes rely on private wells the state does not test for them. Private wells are not covered by those federal rules, so the EPA and CDC recommend testing your own water at least once a year. Match a filter, softener, or reverse-osmosis system to what your test shows.