Williamsport, IN: 2 Health Violations — 68/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Across Williamsport, EPA compliance data for IN sits at a moderate level — not alarming, but not uniformly clean across all service areas either.
How Williamsport Compares
Data: EPA SDWIS Last verified: 2026-06-03
Williamsport Water: The Quick Version
- Your city's water systems recorded 16 violations in the past 5 years.
- Average lead level: 0.0047 mg/L.
- Homes built before 1986: 74% — older plumbing may contain lead solder.
- Estimated remediation: $3,300 per household.
- CDC health risk index: 15.33 — above typical levels.
Water Systems Serving Williamsport
Water service in Williamsport, IN is split across 2 utilities out of 2 tracked federally, each operating its own infrastructure and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Williamsport, Indiana, covering 2 community water systems serving approximately 3,667 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Williamsport: C (68/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Williamsport water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0047 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 12 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 8 | 1 |
| Consumer Confidence Report Rule | Reporting | 4 | 1 |
| Chlorine residual | Disinfectant | 4 | 1 |
| Radium-228 | Radionuclides | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 47993 | C | 16 | 2 | Williamsport Water Utility |
All ZIP Codes in Williamsport
- 47993 [C] — 16 violations ⚠
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
Updated daily.
CDC Health Data for Williamsport
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Williamsport
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Williamsport's Housing Stock?
With 74% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Decades of residential development in Williamsport took place before the two main regulatory milestones that reduced plumbing-era lead risk: the phase-out of lead pipes before 1970, and the federal ban on lead solder in 1986. With a median build year of 1964, the housing stock here is anchored in that earlier period. The distinction between pre-1970 and 1970-to-1986 construction matters: the oldest homes may have lead pipes in the service line and lead solder in the copper joints, while the 1970-to-1986 tier still carries the solder risk even after lead pipes became less common. Together, these two risk layers affect a majority of the residential properties in the city — a fact the aggregate water quality data doesn't directly reveal.
Over half of homes in Williamsport were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Williamsport: Remediation Cost in Perspective
Remediation costs in Williamsport represent a substantial share of typical property values — the equity impact here is significant, and careful financial planning is essential rather than optional for most homeowners.
At 2.6% of home value, remediation costs in Williamsport represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $2,150–$4,600. Home values here are 30% below the Indiana average.
Protecting Children from Lead in Williamsport
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Reading the local data together points toward a structural gap that matters more here than in low-exposure communities. 74% of Williamsport stock comes from the pre-rule era, and citywide monitoring either approaches or sits beyond the federal benchmark under Lead and Copper Rule sampling. A baseline kit fits the routine-diligence category, with certified filtration available via retailer networks where confirmed faucet results warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Williamsport
A moderate NFIP record for Williamsport — 1 insurance claim paired with 100% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Williamsport has a moderate flood history with 1 FEMA claims. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$3,300</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Williamsport
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Williamsport's water.
- Check your home's plumbing. With 74% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Williamsport, IN