Drinking Water Blog
Data-driven analysis of US drinking water quality using EPA Safe Drinking Water Act violation data.
April 6, 2026
Microplastics in Drinking Water: What the Data Shows (2026)
EPA proposed first-ever monitoring rules for microplastics in 2026. What we know about microplastic contamination in tap water and how to reduce exposure.
April 6, 2026
Lead in Drinking Water: 9.2 Million Lead Pipes Still in Use
There is no safe level of lead in water. EPA data shows which systems have lead violations, how lead enters tap water, and what filters remove it.
April 5, 2026
PFAS in Drinking Water: Which Systems Are Affected
PFAS "forever chemicals" in US drinking water — which systems have PFAS violations and what residents should know.
April 5, 2026
Cities With the Worst Drinking Water in America
The bottom 20 water systems ranked by Water Safety Score. EPA data reveals which communities have the most violations.
April 5, 2026
Is My Tap Water Safe to Drink? How to Check
How to check your tap water safety using EPA violation data and our Water Safety Score. A step-by-step guide for any US address.