Canterbury, NH Water Safety: 72/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Residents of Canterbury generally live with tap water that beats the NH safety average on key EPA compliance metrics.
How Canterbury Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Canterbury Residents
- Homes built before 1986: 62% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 11.83.
Canterbury's Water Providers
As of current federal records, Canterbury, NH is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.
Overview
We track water quality and home safety data for 1 ZIP code in Canterbury, New Hampshire, covering 1 community water system serving approximately 2,458 people.
No EPA violations recorded across any ZIP codes in Canterbury — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Canterbury: 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
Canterbury water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Canterbury
- 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 |
|---|---|---|---|
| 03224 | B | Canterbury Spruces Housing | 25 |
All ZIP Codes in Canterbury
- 03224 [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.
Canterbury 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
Canterbury Infrastructure Age
With 62% 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
Because the majority of Canterbury's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1971 reflects a city where lead-era plumbing materials are common rather than exceptional.
Over half of homes in Canterbury 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 Canterbury
Across Canterbury, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Canterbury are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 12% above the New Hampshire average.
Canterbury: 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.
Older stock in Canterbury represents 62% of the inventory, and citywide monitoring runs at or above the federal action level — making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Canterbury, NH