Woodlyn, PA: High Radon Risk — 45/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Water monitoring data from Woodlyn, PA tells a below-average story — health violations are present and system-level detail is worth reviewing before drawing conclusions.
How Woodlyn Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Woodlyn Water
- Homes built before 1986: 87% — older plumbing may contain lead solder.
- Estimated remediation: $3,000 per household.
Who Supplies Your Water in Woodlyn
2 independent water providers serve Woodlyn, PA — 2 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Woodlyn, Pennsylvania (population ~4,517), covering 2 community water systems serving approximately 963,037 people region-wide.
No EPA violations recorded across any ZIP codes in Woodlyn — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Woodlyn: D (45/100)
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
Woodlyn water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Woodlyn
- 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 19094 | D | Aqua Pa Main System | 822,600 |
All ZIP Codes in Woodlyn
- 19094 [D]
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.
Housing & Infrastructure in Woodlyn
With 87% 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
Because the majority of Woodlyn's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1954 reflects a city where lead-era plumbing materials are common rather than exceptional.
Over half of homes in Woodlyn 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.
Cost Context: What Remediation Means for Woodlyn Homeowners
Property equity in Woodlyn sits at a moderate ratio to estimated remediation costs — a classification that reframes the household financial perspective from routine maintenance to deliberate budgeting, where most homeowners have a realistic path to addressing documented water and safety issues if they map the financial commitment against available resources before committing to scope.
Remediation costs are moderate relative to home values in Woodlyn. The estimated $2,000–$4,100 range is manageable for most homeowners but still worth budgeting for. Home values are 14% above the Pennsylvania average.
Lead Exposure Risk for Children in Woodlyn
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.
Older stock in Woodlyn represents 87% of the inventory, and citywide monitoring runs at or above the federal action level — making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Woodlyn
Within the NFIP's national dataset, Woodlyn falls in moderate-exposure territory — 24 documented incidents spanning multiple decades, with 100% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Woodlyn has a moderate flood history with 24 FEMA claims averaging $15,478 per payout. 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>$3,000</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 Woodlyn
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 87% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Woodlyn, PA