Arroyo Grande, CA Home Safety by Neighborhood - Water Issues Recorded
2 ZIP codes · 37 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 Arroyo Grande, CA. The area averages a grade C (62/100); water systems associated with 1 ZIP code have recorded EPA violations.
Home-safety conditions vary across Arroyo Grande, 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 C (62/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 1 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Mapped ZIP codes in Arroyo Grande ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 93420 | 62 | C | 37 | 0.0031 mg/L |
| 2 | 93421 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 1 neighborhoods score worse than county average
EPA Violations
- 37 total violations since 2021 across the water systems mapped to Arroyo Grande ZIP codes (each system counted once; includes small systems beyond the city utility)
- 13 health-based violation records in the available EPA data
- 1 of 1 directly mapped ZIP record are mapped to water systems with recorded violations
- 0 of 1 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 |
|---|---|---|
| Nitrate | 25 | 1 |
| Selenium | 7 | 1 |
| Lead and Copper Rule Revisions | 2 | 1 |
| Revised Total Coliform Rule | 2 | 1 |
| Lead and Copper Rule | 1 | 1 |
Frequently Asked Questions
Which ZIP code in Arroyo Grande has the highest home safety score?
ZIP code 93420 has the highest safety score among scored ZIP codes in Arroyo Grande at 62/100 (grade C). Check the full report for details.
Is Arroyo Grande water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 1 directly mapped ZIP records, 37 EPA violations are recorded; 0 of 1 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.