DrinkingWaterCheck: The EPA Record Before the Faucet

Field notes

The lookup organizes EPA SDWIS records by individual utility or city rather than assigning a composite safety score. Its status vocabulary separates reporting lapses from health-based violations and distinguishes current, recent, and older findings. The stated dataset contains 12,903 active community systems serving at least 2,000 people, representing 315,798,789 people; smaller and non-community systems are outside the current coverage. The homepage cautions that utility records cannot reveal changes caused by household plumbing.