Lemasters, PA: High Radon Risk — 40/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
The latest EPA cycle for Lemasters shows a low safety grade within PA — compliance gaps have persisted over multiple reporting periods, and the city currently holds a low grade in available EPA data.
How Lemasters Compares
Data: EPA SDWIS Last verified: 2026-06-03
Lemasters's Water Providers
A single dominant system supplies most of Lemasters, PA. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Lemasters, Pennsylvania, covering 1 community water system serving approximately 2,350 people.
No EPA violations recorded across any ZIP codes in Lemasters — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Lemasters: D (40/100)
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
Lemasters water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Lemasters
- 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 |
|---|---|---|---|
| 17231 | D | MERCERSBURG MUNI WATER AUTH | 2,350 |
All ZIP Codes in Lemasters
- 17231 [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.
What You Can Do in Lemasters
- 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. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- 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 Lemasters, PA