Butternut, WI: 3 Health Violations — 79/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Butternut, WI: reliable drinking water, above-average safety record, few violations.
How Butternut Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Butternut Water
- Your city's water systems recorded 19 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 70% — older plumbing may contain lead solder.
- Estimated remediation: $1,000 per household.
- CDC health risk index: 14.78 — above typical levels.
Who Supplies Your Water in Butternut
A single dominant system supplies most of Butternut, WI. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Butternut, Wisconsin, covering 1 community water system serving approximately 1,810 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 3 health-based violations documented.
Home Safety Score
Average Home Safety Score for Butternut: B (79/100)
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
Butternut water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 8 | 1 |
| Consumer Confidence Report Rule | Reporting | 8 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | 1 |
| Lead and Copper Rule | Treatment Technique | 4 | 1 |
| Contaminant 0700 | Other | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 54514 | B | 19 | 3 | Butternut Waterworks |
All ZIP Codes in Butternut
- 54514 [B] — 19 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.
Health Outcomes in Butternut
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
Top Contaminants in Butternut Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Butternut
With 70% 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, Butternut's housing stock carries a median build year of 1976. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Butternut 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.
Cost Context: What Remediation Means for Butternut Homeowners
Equity impact data for Butternut lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Butternut are relatively low compared to home values. The $300–$2,300 estimated range is a small fraction of median property value. Home values are 31% below the Wisconsin average.
Lead Exposure Risk for Children in Butternut
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 70% of the Butternut inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Butternut, WI