Pennsylvania had the most water violations in 2023, 24,525 in total — 14,808 of which were related to monitoring and reporting.

There are an estimated 1.1 million people in the United States currently living without household running water and sewerage, the study found. A map shows the places with the highest concentration ...

For context, the peak daily water flow of Niagara Falls is around 700,000 gallons per second. This map shows key rivers − ...