Water Quality in Fond Du Lac, WI (53057)

EPA violation data for public water systems serving ZIP code 53057.

Past Health-Based Violations

6 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There is also 1 monitoring/reporting violation.

More violations than 60% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

1,882

Population

10

Water Systems

7

Violations (5yr)

6

Health-Based

Location

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Water Systems Serving This Area (10)

Fond Du Lac Waterworks

1 health-based
Groundwater 44,303 people served
2 violations (5yr) · 1 health-based · All resolved
Lead tested: 7.9 ppb (limit: 15 ppb)

Mount Calvary Waterworks

Groundwater 478 people served
0 violations
Lead tested: 0.45 ppb (limit: 15 ppb)

St Michaels Ch

Groundwater 250 people served
0 violations

St Pauls Lutheran Ch & Sch

5 health-based
Groundwater 92 people served
5 violations (5yr) · 5 health-based · All resolved
Lead tested: 3.35 ppb (limit: 15 ppb)

Villa Loretto Nursing Home

Groundwater 75 people served
0 violations

Badgers Pub

Groundwater 31 people served
0 violations

Puddlefort Inn

Groundwater 25 people served
0 violations

Riverside Hunting & Fishing Club

Groundwater 25 people served
0 violations

Banner Bar

Groundwater 25 people served
0 violations

St Pauls Lutheran Church & School

Groundwater 0
0 violations

Contaminants Found

NitrateHealth-Based

At high levels, nitrate can cause blue baby syndrome in infants.

5 violations
All resolved
LEAD AND COPPER RULE REVISIONSHealth-Based
1 violation
All resolved
Public NoticeMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
3.35 ppb measured Action level: 15 ppb

Sampled: Sep 2025

How Does This Compare?

Fond Du Lac (53057) has more violations than 60% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 7.

Fewer violations 60th percentile More violations

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.

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