Nonantum, MA: High Radon Risk — 40/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Drinking water quality in Nonantum has lagged behind MA benchmarks — documented violations keep the safety grade low.
How Nonantum Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Nonantum Residents
- Estimated remediation: $1,200 per household.
- CDC health risk index: 9.88.
Nonantum's Water Providers
With one provider handling most of Nonantum's residential supply in MA, water service accountability is concentrated in a single utility among the 1 system on record.
Overview
We track water quality and home safety data for 1 ZIP code in Nonantum, Massachusetts, covering 1 community water system serving approximately 88,415 people.
No EPA violations recorded across any ZIP codes in Nonantum — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Nonantum: 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
Nonantum water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Nonantum
- 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 |
|---|---|---|---|
| 02495 | D | NEWTON WATER DEPT. (MWRA) | 88,415 |
All ZIP Codes in Nonantum
- 02495 [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.
Nonantum Community Health Snapshot
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 Nonantum
- 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 Nonantum, MA