CITY REPORT WI 2 HEALTH VIOLATIONS

Fond Du Lac, WI: 2 Health Violations - Home Safety 64/100

3 ZIP codes · 4 water systems · Updated

ZipCheckup grade for Fond Du Lac: C.

A mixed picture - some signals here are worth your attention.

Safe water is the norm across most of Fond Du Lac, WI - but documented violations push the city to the middle safety tier.

How Fond Du Lac Compares

Fond Du Lac64/100
Wisconsin avg70/100
National avg73/100

Data: EPA SDWIS

3
ZIP Codes
4
Water Systems
2
ZIPs with Violations
C · 64
Avg Safety Score
Zone 1
Radon Risk (High)
$262K
Median Home Value
$2,300
Est. Remediation (0.9% of home value)

Fond Du Lac Water: The Quick Version

  • Your city's water systems recorded 9 violations in the past 5 years.
  • Average lead level: 0.0091 mg/L.
  • Homes built before 1986: 62% - older plumbing may contain lead solder.
  • Estimated remediation: $2,300 per household.
  • CDC health risk index: 13.66 - above typical levels.

Water Systems Serving Fond Du Lac

Federal drinking water records identify 4 systems in Fond Du Lac, WI. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations - so service conditions are not uniform city-wide.

Overview

We track home safety data for 3 ZIP codes in Fond Du Lac, Wisconsin, covering 4 community water systems serving approximately 63,351 people. The EPA snapshots used for this build directly map water systems to 2 of 3 ZIP codes.

2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Fond Du Lac: C (64/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Fond Du Lac water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0091 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

  • Zone 1 (High): 3 ZIP codes
  • Zone 2 (Moderate): 0 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 2 DBP Rule Treatment Technique 9 2
Lead and Copper Rule Treatment Technique 6 2
Gross Beta Radionuclides 3 2
Radium-226 Radionuclides 3 2
Radium-228 Radionuclides 3 2

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
54935 C 9 2 Fond Du Lac Waterworks
54937 C 9 2 Fond Du Lac Waterworks

All ZIP Codes in Fond Du Lac

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Fond Du Lac

11%
Asthma (US: 9.8%)
11.5%
Diabetes (US: 10.4%)
15.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11% ↑
Diabetes 11.5% ↑
Mental Health 15.6% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Fond Du Lac

Stage 2 DBP Rule 9 violations
Treatment Technique
Disinfection byproduct exposure risk
Lead and Copper Rule 6 violations
Treatment Technique
Developmental delays in children, kidney damage
Gross Beta 3 violations
Radionuclides · EPA limit: 50 pCi/L

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Fond Du Lac's Housing Stock?

1975
Median Build Year
62%
Built Before 1986
34%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 62% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Viewed through the lens of construction era, Fond Du Lac is predominantly an older city - a median build year of 1975 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.

1975
Median Year Built
62%
Pre-1986 (Lead Paint Risk)
34%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (34%) 1970–1986 (28%) Post-1986 (38%)

Over half of homes in Fond Du Lac were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Fond Du Lac: Remediation Cost in Perspective

Setting Fond Du Lac remediation figures against its property market, the resulting ratio sits comfortably in the low tier - a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.

Median Home Value
$262,000
Est. Remediation
$2,300
Remediation as % of home value 0.9%

Remediation costs in Fond Du Lac are relatively low compared to home values. The $1,483–$3,300 estimated range is a small fraction of median property value. Home values are 13% above the Wisconsin average.

Protecting Children from Lead in Fond Du Lac

62%
Homes Built Before 1986
0.0091
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Before the federal solder ban, lead solder was a routine plumbing material, and 62% of the Fond Du Lac inventory was built in that earlier era - a share large enough to move household-level reads onto the standard list.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Fond Du Lac

500
Total FEMA Flood Claims
$16,832
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Fond Du Lac contains 500 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,832. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,300</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Fond Du Lac

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for Stage 2 DBP Rule can reduce the most common contaminant found in Fond Du Lac's water.
  3. Check your home's plumbing. With 62% of homes built before 1986, lead solder is a real possibility.

Deep Dive Reports

Detailed analysis for Fond Du Lac, WI

Frequently Asked Questions

What does the Home Safety Score mean for Fond Du Lac, WI?
Fond Du Lac has an average Home Safety Score of 64/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 9 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Fond Du Lac have?
Fond Du Lac water systems have a total of 9 EPA violations, including 2 health-based violations. Violations are tracked across 3 ZIP codes.
Does Fond Du Lac water have lead?
The average 90th-percentile lead level in Fond Du Lac is 0.0091 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Fond Du Lac compare to Wisconsin average?
Fond Du Lac has an average Home Safety Score of 64/100, which is below the Wisconsin state average of 70/100 for the same model series.
How many water systems serve Fond Du Lac?
Fond Du Lac is served by 4 public water systems across 3 ZIP codes, serving approximately 63,351 people.
How much does it cost to fix water issues in Fond Du Lac?
Estimated remediation costs in Fond Du Lac average $2,300 per household, ranging from $1,483 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
Home → Cities → Wisconsin → Fond Du Lac, WI

How to cite this page

APA ZipCheckup. (2026). Fond Du Lac, WI: 2 Health Violations - Home Safety 64/100. https://zipcheckup.com/cities/wi/fond-du-lac/
BibTeX 
@misc{zipcheckup-cities-wi-fond-du-lac,
  author = {{ZipCheckup}},
  title  = {{Fond Du Lac, WI: 2 Health Violations - Home Safety 64/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wi/fond-du-lac/}
}

Page version: August 2026.

Get safety alerts for Fond Du Lac, Wisconsin

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found - check filter options Free tool - no phone call required.