Williams County Water Quality

Williams County, Ohio has a water quality grade of D with a score of 48.5/100, based on EPA Safe Drinking Water Information System data. The county has 4 health-based drinking water violations on record.

Williams County has 4 health-based drinking water violations recorded by the EPA. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.

Williams County's water quality score of 48.5/100 is lower than the Ohio state average of 56.2. The average water quality grade across Ohio is D, based on data from 88 counties with available water quality data.

Based on EPA data, Williams County has a water quality grade of D (48.5/100). This indicates below-average water quality with significant compliance issues. Residents may want to consider home water filtration. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).

Williams County has 4 health-based drinking water violations according to EPA records. With a water quality score of 48.5/100 and grade D, the county's drinking water has had some compliance issues but continues to be monitored. For the most current safety information, check with your local water utility.

Williams County ranks #61 out of 88 counties in Ohio by water quality score (1 = best). With a score of 48.5/100, it falls in the bottom third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.