# Tap Water Ledger Independent presentation of EPA public drinking-water compliance records. ## Scope - Active community water systems serving 2,500+ people - EPA SDWA system-search snapshot dated 2026-09-13 - Do not describe a clear flag as proof of safe tap water - Do not describe any flag as a household test result ## Important pages - https://tapwaterledger.com/methodology/ - https://tapwaterledger.com/data/ - https://tapwaterledger.com/systems/