Williamsport, PA: PFAS Found in Water - Home Safety 42/100
4 ZIP codes · 4 water systems · Updated
ZipCheckup grade for Williamsport: D.
Federal records show several conditions worth reviewing.
Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →
Treat the D-F grade for Williamsport, PA as a summary of available data, not a measurement at your faucet.
How Williamsport Compares
Data: EPA SDWIS
Williamsport Water: The Quick Version
- Your city's water systems recorded 261 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0025 mg/L.
- Estimated remediation: $500 per household.
Water Systems Serving Williamsport
Because each listed system has its own federal record, violations at one of the 3 shown below do not apply to the others among the 4 tied to Williamsport, PA.
- F
- F
- F
Overview
We track home safety data for 4 ZIP codes in Williamsport, Pennsylvania, covering 4 community water systems serving approximately 53,675 people. The EPA snapshots used for this build directly map water systems to 2 of 4 ZIP codes.
1 of 2 ZIP codes with a reported violation count in the available EPA record (50%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Williamsport: D (42/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Williamsport water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0025 mg/L (EPA action level: 0.015 mg/L)
- 0 of 2 ZIP codes with known status exceed the EPA lead action level
Radon Risk
4 of 4 ZIP records with known zones are in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Public Notice Rule | Reporting | 94 | 1 |
| Consumer Confidence Rule | Reporting | 14 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 12 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 12 | 1 |
| Revised Total Coliform Rule | Microbiological | 10 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 17702 | F | 261 | 0 | Williamsport Mun Water Authority |
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 17701 | D | Williamsport Mun Water Authority | 51,000 |
All ZIP Codes in Williamsport
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Key Contaminants Detected in Williamsport
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Williamsport: Remediation Cost in Perspective
In Williamsport, estimated remediation comes to 1% or less of the median home value.
Estimated remediation costs in Williamsport can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 9% below the Pennsylvania average.
Protecting Children from Lead in Williamsport
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Available area-level lead records for Williamsport do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Williamsport
Historical NFIP data for Williamsport contains 1,302 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $18,148. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in Williamsport
- Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
- Install a certified water filter. For Public Notice Rule, listed in the water-quality records for Williamsport: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.
Deep Dive Reports
Detailed analysis for Williamsport, PA