Flagstaff, AZ Home Safety by Neighborhood - Water Issues Recorded
6 ZIP codes · 112 EPA violations on record for mapped water systems
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 6 ZIP codes across Flagstaff, AZ. The area averages a grade C (67/100); water systems associated with 4 ZIP codes have recorded EPA violations.
Home-safety conditions vary across Flagstaff, AZ. We compared 6 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 C (67/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 4 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Mapped ZIP codes in Flagstaff ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 86001 | 67 | C | 88 | 0.0036 mg/L |
| 2 | 86004 | 67 | C | 67 | 0.0036 mg/L |
| 3 | 86005 | 67 | C | 94 | 0.0036 mg/L |
| 4 | 86011 | 67 | C | 65 | 0.0036 mg/L |
| 5 | 86002 | — | — | — | No data |
| 6 | 86003 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 4 neighborhoods score better than county average
- 0 neighborhoods score worse than county average
EPA Violations
- 112 total violations since 2021 across the water systems mapped to Flagstaff ZIP codes (each system counted once; includes small systems beyond the city utility)
- 5 health-based violation records in the available EPA data
- 4 of 4 directly mapped ZIP records are mapped to water systems with recorded violations
- 0 of 4 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 |
|---|---|---|
| Revised Total Coliform Rule | 17 | 4 |
| Consumer Confidence Rule | 15 | 4 |
| Total organic carbon | 12 | 4 |
| Public Notice Rule | 9 | 2 |
| Dichloromethane | 8 | 4 |
Frequently Asked Questions
Which ZIP code in Flagstaff has the highest home safety score?
ZIP code 86001 has the highest safety score among scored ZIP codes in Flagstaff at 67/100 (grade C). Check the full report for details.
Is Flagstaff water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 4 directly mapped ZIP records, 112 EPA violations are recorded; 0 of 4 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.