<p>In Kansas, mains water is delivered by local public water systems, regulated by the Kansas Dept of Health and Environment (KDHE), Public Water Supply Section under the US EPA Safe Drinking Water Act. Typical hardness: Very hard; statewide avg ~292 ppm, most counties very hard. For a specific ZIP, see the EWG Tap Water Database.</p>
Sources: Kansas Dept of Health and Environment (KDHE), Public Water Supply Section, EWG Tap Water Database