Waukesha, WI Home Safety by Neighborhood - Water Issues Recorded
4 ZIP codes · 144 EPA violations on record for mapped water systems
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 4 ZIP codes across Waukesha, WI. The area averages a grade F (39/100); water systems associated with 3 ZIP codes have recorded EPA violations.
Home-safety conditions vary across Waukesha, WI. We compared 4 ZIP codes using the current versioned Home Safety Score. Water compliance remains one component alongside PFAS screening, radon, and annual air quality.
City Overview: Grade F (39/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 1 | 33% |
| F | 2 | 67% |
Neighborhood Rankings
Mapped ZIP codes in Waukesha ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 53189 | 50 | D | 79 | 0.0026 mg/L |
| 2 | 53186 | 33 | F | 97 | 0.0034 mg/L |
| 3 | 53188 | 33 | F | 133 | 0.0026 mg/L |
| 4 | 53187 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 3 neighborhoods score worse than county average
EPA Violations
- 144 total violations since 2021 across the water systems mapped to Waukesha ZIP codes (each system counted once; includes small systems beyond the city utility)
- 95 health-based violation records in the available EPA data
- 3 of 3 directly mapped ZIP records are mapped to water systems with recorded violations
- 0 of 3 ZIP records with known lead status are served by a system whose 90th-percentile lead result exceeded the EPA action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Gross Alpha (excl. radon and uranium) | 115 | 3 |
| Combined Radium (-226 and -228) | 110 | 3 |
| Public Notice Rule | 74 | 3 |
| Nitrate | 2 | 2 |
| Lead and Copper Rule Revisions | 2 | 1 |
Frequently Asked Questions
Which ZIP code in Waukesha has the highest home safety score?
ZIP code 53189 has the highest safety score among scored ZIP codes in Waukesha at 50/100 (grade D). Check the full report for details.
Is Waukesha water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 3 directly mapped ZIP records, 144 EPA violations are recorded; 0 of 3 records with known lead status exceed the action level. Check the specific ZIP and serving system before drawing a property-level conclusion.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Reporting periods vary by source; the page metadata identifies this materialization.