Newton, NH Water Safety: 72/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
The water systems supplying Newton show a track record of above-average compliance with federal standards — consistently among the better performers in NH.
How Newton Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Newton Residents
- Homes built before 1986: 53% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 11.66.
Newton's Water Providers
At present, 3 utilities serve the bulk of Newton, NH's residential water connections out of 4 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 1 ZIP code in Newton, New Hampshire, covering 4 community water systems serving approximately 4,825 people.
No EPA violations recorded across any ZIP codes in Newton — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Newton: B (72/100)
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
Newton water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Newton
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate 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 |
|---|---|---|---|
| 03858 | B | Sargent Woods | 230 |
All ZIP Codes in Newton
- 03858 [B]
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.
Newton 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
Newton Infrastructure Age
With 53% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
When a city's housing median build year is 1986, as in Newton, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Newton were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Newton
At current valuations, Newton sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Newton are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 18% above the New Hampshire average.
Newton: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 53% of the Newton inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Newton, NH