Fairfield, CA Home Safety by Neighborhood - Water Issues Recorded
2 ZIP codes · 15 EPA violations on record for mapped water systems
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 2 ZIP codes across Fairfield, CA. The area averages a grade A (90/100); water systems associated with 2 ZIP codes have recorded EPA violations.
Home-safety conditions vary across Fairfield, CA. We compared 2 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 A (90/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 2 | 100% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Mapped ZIP codes in Fairfield ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 94534 | 95 | A | 3 | 0.0015 mg/L |
| 2 | 94533 | 85 | A | 14 | 0.0026 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 1 neighborhoods score better than county average
- 1 neighborhoods score worse than county average
EPA Violations
- 15 total violations since 2021 across the water systems mapped to Fairfield ZIP codes (each system counted once; includes small systems beyond the city utility)
- 12 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 |
|---|---|---|
| Total Trihalomethanes (TTHM) | 10 | 1 |
| Lead and Copper Rule Revisions | 6 | 2 |
| Lead and Copper Rule | 1 | 1 |
Frequently Asked Questions
Which ZIP code in Fairfield has the highest home safety score?
ZIP code 94534 has the highest safety score among scored ZIP codes in Fairfield at 95/100 (grade A). Check the full report for details.
Is Fairfield water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 2 directly mapped ZIP records, 15 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.