Download Water Violation Data
Free CSV downloads of EPA drinking water violation data, organized by state. Each file contains all violations on record for water systems in that state, with system details included.
For researchers, journalists, and developers. This data is sourced from the EPA's Safe Drinking Water Information System (SDWIS) and is in the public domain.
CSV Fields
Each row is one violation. Columns:
pwsid, system_name, state, city, population, water_source, contaminant_code, contaminant_name, violation_name, health_based, major, begin_date, end_date, compliance_status, measure, unit, rule_name
Download by State
AlaskaAlabamaArkansasAmerican SamoaArizonaCaliforniaColoradoConnecticutDistrict of ColumbiaDelawareFloridaGeorgiaGuamHawaiiIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriNorthern Mariana IslandsMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaPuerto RicoRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaUS Virgin IslandsVermontWashingtonWisconsinWest VirginiaWyoming
Cite This Data
WaterViolations.org. Data from U.S. EPA Safe Drinking Water Information System (SDWIS). https://waterviolations.org/data
Also Available
JSON API — look up systems and violations programmatically, no API key needed.