Warrington, PA: 5 Health Violations — 55/100 (2026)
1 ZIP code · 8 water systems · Updated 2026-06-03
Although much of Warrington meets baseline drinking water standards, some PA-tracked service areas show violations that merit a closer look — particularly for older housing stock.
How Warrington Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Warrington Residents
- Your city's water systems recorded 19 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 46% — older plumbing may contain lead solder.
- Estimated remediation: $3,600 per household.
Warrington's Water Providers
In Warrington, PA, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 8 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 1 ZIP code in Warrington, Pennsylvania (population ~21,942), covering 8 community water systems serving approximately 105,000 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 5 health-based violations documented.
Home Safety Score
Average Home Safety Score for Warrington: C (55/100)
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
Warrington water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 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 |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 12 | 1 |
| Consumer Confidence Report Rule | Reporting | 10 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | 1 |
| Fecal Coliform | Microbiological | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 18976 | C | 19 | 5 | Nwwa Warrington Township |
All ZIP Codes in Warrington
- 18976 [C] — 19 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.
What's in Warrington's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Warrington Infrastructure Age
With 46% 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
Some cities skew heavily toward one construction era; Warrington does not. The median build year of 1980 reflects a housing stock where older and newer homes share the market in meaningful proportions. That mixed profile means the city carries moderate aggregate plumbing-era risk — with older homes, particularly those built before 1986, representing the portion of the stock where lead-soldered joints may still be present.
Most homes in Warrington were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Warrington
When remediation costs are measured against Warrington home values, the resulting ratio is in the low tier — addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.
Remediation costs in Warrington are relatively low compared to home values. The $2,300–$5,600 estimated range is a small fraction of median property value. Home values are 135% above the Pennsylvania average.
Warrington: Lead Risk & Vulnerable Populations
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.
Practically, the structural drivers in Warrington — 46% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Warrington: Flood History & Water Damage Risk
Flood activity in Warrington is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 131-claim record and 100% flood zone coverage suggest a community that has experienced recurrent events but has not faced the kind of sustained, severe exposure where water-supply contamination becomes a primary public health concern. It sits in a middle range where flood history merits inclusion in any complete local water quality picture.
Warrington has a moderate flood history with 131 FEMA claims averaging $18,778 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>$3,600</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 Warrington
- 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 Lead and Copper Rule can reduce the most common contaminant found in Warrington's water.
- Check your home's plumbing. With 46% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Warrington, PA