Hazel Green, WI: 4 Health Violations — 66/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Public water data for Hazel Green, WI reveals a split picture — tap water quality varies meaningfully by service area and the city's grade reflects that variability.
How Hazel Green Compares
Data: EPA SDWIS Last verified: 2026-06-03
Hazel Green Water: The Quick Version
- Your city's water systems recorded 23 violations in the past 5 years.
- Average lead level: 0.0045 mg/L.
- Homes built before 1986: 62% — older plumbing may contain lead solder.
- Estimated remediation: $3,000 per household.
- CDC health risk index: 13.34 — above typical levels.
Water Systems Serving Hazel Green
3 independent water providers serve Hazel Green, WI — 3 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Hazel Green, Wisconsin, covering 3 community water systems serving approximately 3,064 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 4 health-based violations documented.
Home Safety Score
Average Home Safety Score for Hazel Green: C (66/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Hazel Green water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0045 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 18 | 1 |
| Lead and Copper Rule | Treatment Technique | 10 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 8 | 1 |
| Total Coliform | Microbiological | 6 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 53811 | C | 23 | 4 | Hazel Green Waterworks |
All ZIP Codes in Hazel Green
- 53811 [C] — 23 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Hazel Green
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Hazel Green
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Hazel Green's Housing Stock?
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
Heavily weighted toward older construction, Hazel Green's housing stock carries a median build year of 1973. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Hazel Green 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.
Hazel Green: Remediation Cost in Perspective
The equity-to-remediation ratio in Hazel Green is moderate — worth planning for but within reach for most property owners.
Remediation costs are moderate relative to home values in Hazel Green. The estimated $1,900–$4,800 range is manageable for most homeowners but still worth budgeting for. Home values are 5% below the Wisconsin average.
Protecting Children from Lead in Hazel Green
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.
Older stock in Hazel Green represents 62% of the inventory, and citywide monitoring runs at or above the federal action level — making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Hazel Green
Within the NFIP's national dataset, Hazel Green falls in moderate-exposure territory — 6 documented incidents spanning multiple decades, with 100% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Hazel Green has a moderate flood history with 6 FEMA claims averaging $2,945 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$3,000</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Hazel Green
- 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.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Hazel Green's water.
- Check your home's plumbing. With 62% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Hazel Green, WI