Lead Exceeds EPA Action Level at 1 ZIP - Williamsport, PA
4 ZIP codes · 261 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 Williamsport, PA. The area averages a grade D (42/100); water systems associated with 1 ZIP code have recorded EPA violations.
Home-safety conditions vary across Williamsport, PA. 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 D (42/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 1 | 50% |
| F | 1 | 50% |
Neighborhood Rankings
Mapped ZIP codes in Williamsport ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 17701 | 50 | D | 0 | 0.0020 mg/L |
| 2 | 17702 | 33 | F | 261 | Above EPA action level |
| 3 | 17703 | — | — | — | No data |
| 4 | 17705 | — | — | — | No data |
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
- 261 total violations since 2021 across the water systems mapped to Williamsport ZIP codes (each system counted once; includes small systems beyond the city utility)
- 0 health-based violation records in the available EPA data
- 1 of 2 directly mapped ZIP records are mapped to water systems with recorded violations
- 1 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 |
|---|---|---|
| Public Notice Rule | 47 | 1 |
| Consumer Confidence Rule | 7 | 1 |
| Haloacetic Acids (HAA5) | 6 | 1 |
| Total Trihalomethanes (TTHM) | 6 | 1 |
| Revised Total Coliform Rule | 5 | 1 |
Frequently Asked Questions
Which ZIP code in Williamsport has the highest home safety score?
ZIP code 17701 has the highest safety score among scored ZIP codes in Williamsport at 50/100 (grade D). Check the full report for details.
Is Williamsport water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 2 directly mapped ZIP records, 261 EPA violations are recorded; 1 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.