EPA drinking water tools
Use EPA and federal drinking water datasets for system identity, violations, and national regulatory context where available.
Data and trust
Where the water data should come from.
The MVP uses demo data, but the architecture is prepared for official source-backed imports.
Last updated: May 29, 2026
Sample records are not official data.
Primary source hierarchy
Future imported records should prefer official primary sources.
State drinking water agencies
Use state agency records for state-specific system pages, reports, notices, and program context.
Consumer Confidence Reports
Use annual CCRs for report-year summaries and detected contaminant tables, with clear date and limitation labels.