Greenwich, CT Home Safety by Neighborhood - Water Issues Recorded
3 ZIP codes · 24 EPA violations on record for mapped water systems
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 3 ZIP codes across Greenwich, CT. The area averages a grade D (50/100); water systems associated with 2 ZIP codes have recorded EPA violations.
Home-safety conditions vary across Greenwich, CT. We compared 3 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 D (50/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 2 | 100% |
| F | 0 | 0% |
Neighborhood Rankings
Mapped ZIP codes in Greenwich ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 06830 | 50 | D | 24 | No data |
| 2 | 06831 | 50 | D | 24 | No data |
| 3 | 06836 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 2 neighborhoods score better than county average
- 0 neighborhoods score worse than county average
EPA Violations
- 24 total violations since 2021 across the water systems mapped to Greenwich ZIP codes (each system counted once; includes small systems beyond the city utility)
- 0 health-based violation records in the available EPA data
- 2 of 2 directly mapped ZIP records are mapped to water systems with recorded violations
- 0 of 2 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 |
|---|---|---|
| Arsenic | 4 | 2 |
| Barium | 4 | 2 |
| Cadmium | 4 | 2 |
| Chromium | 4 | 2 |
| Cyanide | 4 | 2 |
Frequently Asked Questions
Which ZIP code in Greenwich has the highest home safety score?
ZIP code 06830 has the highest safety score among scored ZIP codes in Greenwich at 50/100 (grade D). Check the full report for details.
Is Greenwich water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 2 directly mapped ZIP records, 24 EPA violations are recorded; 0 of 2 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.