Conshohocken, PA: High Radon Risk — 38/100 (2026)
2 ZIP codes · 2 water systems · Updated 2026-06-03
Across water systems in Conshohocken, EPA data shows a below-average compliance pattern for PA — health-based violations are on file in several areas, and checking the specific system serving your address is a practical first step for concerned residents.
How Conshohocken Compares
Data: EPA SDWIS Last verified: 2026-06-03
Conshohocken's Water Providers
Federal records list 2 water systems tied to Conshohocken, PA. Of those, 2 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
Overview
We track water quality and home safety data for 2 ZIP codes in Conshohocken, Pennsylvania (population ~20,225), covering 2 community water systems serving approximately 911,485 people region-wide.
No EPA violations recorded across any ZIP codes in Conshohocken — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Conshohocken: F (38/100)
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
Conshohocken water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Conshohocken
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 2 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 19428 | F | PA AMERICAN NORRISTOWN | 88,885 |
| 19429 | D | PA AMERICAN NORRISTOWN | 88,885 |
All ZIP Codes in Conshohocken
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.
How Remediation Costs Compare in Conshohocken
The household financial picture for Conshohocken homeowners is proportionally favorable — addressing documented issues claims a small slice of equity, and the cost-to-value ratio puts this area well within the manageable tier.
Remediation costs in Conshohocken are relatively low compared to home values. The $1,900–$3,900 estimated range is a small fraction of median property value. Home values are 109% above the Pennsylvania average.
Conshohocken: Flood History & Water Damage Risk
50% of ZIP codes in Conshohocken are mapped into FEMA-designated flood zones, and the NFIP records 237 claims reflecting a multi-event flood history. That combination places local flood exposure in the range where water-quality implications deserve at least periodic attention.
Conshohocken has a moderate flood history with 237 FEMA claims averaging $71,731 per payout. 50% 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>$2,750</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 Conshohocken
- 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 Conshohocken, PA