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St. Croix County Water Quality

St. Croix County, Wisconsin

Water Grade

C

Water Score

53.8

Violations

5

State Rank

#16

of 71 (1 = best)

Water Quality Details

Water Quality Grade

C

Based on EPA compliance history and violation data

Water Score

53.8/100

Higher = better quality

Health Violations

5

Health-based violations

Violation Rate

11.5%

Systems with violations

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Frequently Asked Questions

What is the water quality in St. Croix County, Wisconsin?
St. Croix County, Wisconsin has a water quality grade of C with a score of 53.8/100, based on EPA Safe Drinking Water Information System data. The county has 5 health-based drinking water violations on record.
Are there any water violations in St. Croix County?
St. Croix County has 5 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.
How does St. Croix County water compare to the Wisconsin average?
St. Croix County's water quality score of 53.8/100 is higher 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.
Is tap water safe to drink in St. Croix County?
Based on EPA data, St. Croix County has a water quality grade of C (53.8/100). This indicates moderate water quality. Some violations have been recorded but overall compliance is maintained. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Does St. Croix County have clean drinking water?
St. Croix County has 5 health-based drinking water violations according to EPA records. With a water quality score of 53.8/100 and grade C, 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.
How does St. Croix County rank for water quality in Wisconsin?
St. Croix County ranks #16 out of 71 counties in Wisconsin by water quality score (1 = best). With a score of 53.8/100, it falls in the top third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.

Counties with Similar Water Quality

Eau Claire County

Wisconsin

C

53.6

Water score

Manitowoc County

Wisconsin

C

51.8

Water score

Chippewa County

Wisconsin

C

56.0

Water score

Data Source

Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

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