Water Systems in WI Exceed Contaminant Limits

Four percent of water systems exceeded limits last year

A new report says 4 percent of Wisconsin’s public water systems exceeded contaminant limits last year.

The Department of Natural Resources (DNR) released its annual report on drinking water Friday.

It found that 11,036 of 11,470 systems, or about 96 percent, served water to customers without exceeding any contaminant limits.

The remaining 439 systems exceeded the limits for at least one contaminant. The most common contaminant was coliform bacteria, which can be found in large numbers in the feces of warm-blooded animals.

The smallest systems, including motels, restaurants, parks, taverns, churches, and campgrounds, accounted for about 73 percent of the violations.

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