West Medford, MA: High Radon Risk — 40/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
Unlike better-scoring cities in MA, West Medford records health-based violations across a meaningful portion of its service areas — the overall safety grade is well below average.
How West Medford Compares
Data: EPA SDWIS Last verified: 2026-06-04
What You Should Know About West Medford Water
- Estimated remediation: $1,200 per household.
- CDC health risk index: 9.88.
Who Supplies Your Water in West Medford
A single utility carries the primary residential water load in West Medford, MA — the dominant provider across 1 federally tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in West Medford, Massachusetts, covering 1 community water system serving approximately 46,308 people.
No EPA violations recorded across any ZIP codes in West Medford — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for West Medford: 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
West Medford water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for West Medford
- 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 |
|---|---|---|---|
| 02156 | D | ARLINGTON WATER DEPT. (MWRA) | 46,308 |
All ZIP Codes in West Medford
- 02156 [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.
Health Outcomes in West Medford
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What You Can Do in West Medford
- 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 West Medford, MA