Glen Riddle Lima, PA: High Radon Risk — 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Although conditions vary by service area, Glen Riddle Lima's water systems collectively show below-average compliance within PA — health-based violations are documented throughout the city, and the overall grade reflects a pattern rather than isolated incidents.
How Glen Riddle Lima Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Systems Serving Glen Riddle Lima
A single utility carries the primary residential water load in Glen Riddle Lima, PA — the dominant provider across 1 federally tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Glen Riddle Lima, Pennsylvania, covering 1 community water system serving approximately 140,437 people.
No EPA violations recorded across any ZIP codes in Glen Riddle Lima — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Glen Riddle Lima: D (53/100)
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
Glen Riddle Lima water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Glen Riddle Lima
- 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 |
|---|---|---|---|
| 19037 | D | CHESTER WATER AUTHORITY | 140,437 |
All ZIP Codes in Glen Riddle Lima
- 19037 [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.
Climate-Related Water Risk for Glen Riddle Lima
Taken together, Glen Riddle Lima's 3 NFIP flood insurance claims and 100% FEMA flood zone coverage place it in the moderate range of exposure. That middle position has specific implications for water quality. The contamination pathways that flooding can open — surface water overwhelming treatment facility intake, floodwaters infiltrating private wells, distribution pressure changes creating backflow — are not constant risks in a moderate-exposure community. But they do become active during significant flood events, and the claim record here indicates enough of those events to make flood timing an occasional factor in local water quality conversations.
Glen Riddle Lima has a moderate flood history with 3 FEMA claims averaging $280,745 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>$4,300</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 Glen Riddle Lima
- 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 Glen Riddle Lima, PA