Fond Du Lac Waterworks

Water Quality Snapshot: Fond Du Lac Waterworks

Fond Du Lac Waterworks is a local-owned community water system that delivers drinking water to 44,303 residents in Fond Du Lac, Wisconsin (Fond du Lac County) through 16,408 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 390 total violations for this system , of which 91 (23%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 262 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 53 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Fond Du Lac Waterworks's 390 violations sit above the Wisconsin average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.