Dakota County Water Quality

Dakota County, Minnesota has a water quality grade of B with a score of 66.2/100, based on EPA Safe Drinking Water Information System data. The county has 11 health-based drinking water violations on record.

Dakota County has 11 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.

Dakota County's water quality score of 66.2/100 is lower than the Minnesota state average of 67.2. The average water quality grade across Minnesota is C, based on data from 87 counties with available water quality data.

Based on EPA data, Dakota County has a water quality grade of B (66.2/100). This indicates good to excellent water quality with strong compliance. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).

Dakota County has 11 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.

Dakota County ranks #52 out of 87 counties in Minnesota by water quality score (1 = best). With a score of 66.2/100, it falls in the middle third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.