Water Quality in La Crosse, WI (54603)
EPA violation data for public water systems serving ZIP code 54603.
Active Health Violations
1 health-based violation found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 72% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
13,738
Population
42
Water Systems
13
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (42)
La Crosse Waterworks
All resolvedOnalaska Waterworks
Campbell, Town Of
Kwik Trip #1108
Kwik Trip 346 Beaver Dam
Kwik Trip 323 Verona
Kwik Trip 325 Mequon
Kwik Trip 360 Oconomowoc
Kwik Trip 686
Breezy Point Tavern
Norwood Inn
Olivet Lutheran Church
Jehovahs Witnesses La Crosse
Kwik Trip 358 Wales
Kwik Trip 317 Sparta
Skipper Liner Industries/Huck Finns
Kwik Trip 727 La Crosse
Glen Cove Estates Mhp
All resolvedUpper Midwest Environmental Sciences Ctr
All resolvedKwik Trip 603 604 Wilson
Nelson Park
Island Estates
1 health-basedHill Billys Bar & Grill
Gaslite Estates Mhp
Xcel Energy French Island Rdf Plant
Campbell Town Hall
Campbell Community Center
Robins Nest
Dugout Sports Bar & Grill The
River Rats
Sandys Mug Tavern
Fishermens Diner
F J Robers Library
Lumbermens Bar & Grill
N S P French Is Power Plant
Kwik Trip Hwy 66
Bikini Yacht Club
Woodland Estates
Kwik Trip 328 Blair
Lindvig Auto Union 76
Olivet Lutheran Church And Addition
Quillins Island Iga
Contaminants Found
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jun 2025
How Does This Compare?
La Crosse (54603) has more violations than 72% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 13.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.