Data Sources & Methodology
Transparency is core to our mission. We source our information from official public records and municipal utility portals.
🏛️ EPA SDWA Database
Our primary directory listing is derived from the U.S. Environmental Protection Agency (EPA) Safe Drinking Water Act (SDWA) public records. We ingest data for over 51,000 active Community Water Systems (CWS) across all 50 states.
- Utility PWSID identification
- Population served data
- Ownership and system type tracking
🔗 Municipal Payment Portals
Payment portal links and customer service phone numbers are sourced directly from official municipal (.gov) or city (.org / .com) websites. Our team monitors for updates to billing processors like InvoiceCloud, Paymentus, and municipal utilities boards.
Continuous Updates
Our database is synchronized with EPA records and city portal updates on a rotating monthly basis. We prioritize high-population urban centers for weekly verification to ensure link integrity.