The incident occurred on July 7, 2024, when the system identified a routine total coliform positive result but delayed collecting the necessary well water samples for E. coli testing. Under Ohio EPA regulations, which align with the federal Safe Drinking Water Act’s Revised Total Coliform Rule (RTCR), public water systems must monitor for total coliform bacteria as an indicator of potential contamination. Ohio EPA oversees compliance for the state’s roughly 7,000 public water systems, requiring certified labs to analyze samples and report results. Ohio EPA records show the system had at least one active violation logged for the July 2024 period related to its distribution facilities. Broader state data indicates Ohio public water systems averaged about 1.7 health-based violations per community system in recent years, though monitoring lapses like Jeffersonville’s are more common administrative issues.