Pewaukee, WI: 27 Health Violations — 40/100 (2026)
1 ZIP code · 11 water systems · Updated 2026-06-03
State safety rankings put Pewaukee, WI near the lower tier — below-average compliance on record.
How Pewaukee Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Pewaukee Water
- Your city's water systems recorded 49 violations in the past 5 years.
- Average lead level: 0.0026 mg/L.
- Homes built before 1986: 37% — older plumbing may contain lead solder.
- Estimated remediation: $3,600 per household.
- CDC health risk index: 11.81.
Who Supplies Your Water in Pewaukee
With 3 utilities splitting service in Pewaukee, WI, water accountability is distributed across 11 systems on the federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Pewaukee, Wisconsin (population ~26,652), covering 11 community water systems serving approximately 138,574 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 27 health-based violations documented.
Home Safety Score
Average Home Safety Score for Pewaukee: D (40/100)
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
Pewaukee water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0026 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 |
|---|---|---|---|
| Gross Alpha | Radionuclides | 42 | 1 |
| Lead and Copper Rule | Treatment Technique | 34 | 1 |
| Gross Beta | Radionuclides | 10 | 1 |
| Revised Total Coliform Rule | Microbiological | 8 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 53072 | D | 49 | 27 | Pewaukee City Water and Sewer Utility |
All ZIP Codes in Pewaukee
- 53072 [D] — 49 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 Pewaukee
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 Pewaukee Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Pewaukee
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Roughly balanced between older and newer construction, Pewaukee shows a median build year of 1997 — a mid-range figure that places meaningful amounts of the residential inventory on both sides of the 1986 federal plumbing-solder ban.
Most homes in Pewaukee were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Pewaukee Homeowners
Because property values in Pewaukee comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Pewaukee are relatively low compared to home values. The $2,300–$5,600 estimated range is a small fraction of median property value. Home values are 84% above the Wisconsin average.
Lead Exposure Risk for Children in Pewaukee
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.
Confirming what arrives at a specific faucet is something utility-side averages cannot do. With 37% of Pewaukee stock built before the lead-solder ban and citywide monitoring at or beyond the regulatory mark, a tap-level kit fits the standard diligence picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Pewaukee
How does Pewaukee's flood record connect to local water quality? The NFIP documents 32 claims — enough to signal recurring events — and 100% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.
Pewaukee has a moderate flood history with 32 FEMA claims averaging $16,768 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>$3,600</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 Pewaukee
- 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 Gross Alpha can reduce the most common contaminant found in Pewaukee's water.
- Check your home's plumbing. With 37% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Pewaukee, WI