Water Quality in Fond Du Lac, WI (53946)
EPA violation data for public water systems serving ZIP code 53946.
Active Health Violations
2 health-based violations 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 84% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
4,333
Population
34
Water Systems
28
Violations (5yr)
2
Health-Based
Location
Loading map...
Water Systems Serving This Area (34)
Fond Du Lac Waterworks
1 health-basedMarkesan Waterworks
Lake View Inn
St Pauls Lutheran Ch Manchester
Mackford Elementary
Terrys Hitching Post
Del Monte Mens Camp 051
Terrace Shores Ch Youth Bldg
Terrace Shores Ev Free Ch
Landmark Services Coop
Camp Grow Dining Hall
Millers Resort
Manchester Elementary School
Shady Oaks Cmpgd Well Near Front Gate
Shady Oaks Cmpgd Well Near Mgrs Trailer
Rivers End Resort - Old Well
All resolvedReillys Pub
County Line Lutheran Church
Faith Lutheran Church & School
Kenneth J Stobbe
Tony Barzano
Tucked Away Tavern
Pineland Camping Park 2
Hilltop Tavern
Radtkes Landing
Chiquita Processed Foods
Clarks Marketing Inc
Camp Grow Brim G Lodge
Kingston Elementary
Markesan City Of Soldiers & Sailors Park
Rivers End Resort - New Well
All resolvedSt Pauls Lutheran Ch Marquette
White Sails Subdivision
Del Monte Markesan Plant 116
1 health-basedContaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Fond Du Lac (53946) has more violations than 84% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 28.
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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.