Onalaska, Wisconsin Water Violations

14 water systems serve Onalaska, Wisconsin, providing drinking water to an estimated 18,824 people. These systems have 4 health-based violations on record, meaning contaminant levels exceeded EPA maximum contaminant levels (MCLs) or required treatment standards were not met.

Select a water system below to see its full violation history, lead and copper testing results, and compliance status.

Water SystemPopulation ServedSourceViolationsHealth-Based
Empire Screen Printing Clean Room 200 Groundwater 5 2
Slettedahl Properties 42 Groundwater 2 2
Metallics Incorporated 190 Groundwater 5 0
Empire Screen Printing Office 70 Groundwater 2 0
Onalaska Waterworks 18,000 Groundwater 0 0
Red Pines Resort 50 Groundwater 0 0
Midway Deli 50 Groundwater 0 0
Coulee Life Church 50 Groundwater 0 0
Upper Mississippi National Wildlife Refuge Visitor Center 38 Groundwater 0 0
Sitara Salon Spa 34 Groundwater 0 0
Cozy Corner Cottages 25 Groundwater 0 0
Petticoat Junction 25 Groundwater 0 0
Van Riper Park 25 Groundwater 0 0
Angrys Way Out 25 Groundwater 0 0