<p>In Connecticut, mains water is delivered by local public water systems, regulated by the Connecticut Dept of Public Health (CT DPH), Drinking Water Section under the US EPA Safe Drinking Water Act. Typical hardness: Soft to moderately hard. For a specific ZIP, see the EWG Tap Water Database.</p>
Sources: Connecticut Dept of Public Health (CT DPH), Drinking Water Section, EWG Tap Water Database