Trempealeau County Water Quality

Trempealeau County, Wisconsin has a water quality grade of F with a score of 29.1/100, based on EPA Safe Drinking Water Information System data. The county has 12 health-based drinking water violations on record.

Trempealeau County has 12 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.

Trempealeau County's water quality score of 29.1/100 is lower than the Wisconsin state average of 39.5. The average water quality grade across Wisconsin is F, based on data from 71 counties with available water quality data.

Based on EPA data, Trempealeau County has a water quality grade of F (29.1/100). 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).

Trempealeau County has 12 health-based drinking water violations on record from the EPA SDWIS database. A higher violation count can result from aging infrastructure, underfunded water utilities, agricultural runoff contamination, or industrial pollution. Counties with more water systems may also see more violations simply due to scale. Residents concerned about water quality should consider independent water testing and home filtration systems.

Trempealeau County ranks #50 out of 71 counties in Wisconsin by water quality score (1 = best). With a score of 29.1/100, 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.