Antrim, NH Water Safety: 75/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Although water quality varies across any metro, Antrim's systems collectively post above-average compliance scores for NH — and documented violations are few.
How Antrim Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Antrim Water
- Homes built before 1986: 65% — older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 11.54.
Who Supplies Your Water in Antrim
Antrim, NH is covered by 2 major water utilities out of 2 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.
Overview
We track water quality and home safety data for 1 ZIP code in Antrim, New Hampshire, covering 2 community water systems serving approximately 2,622 people.
No EPA violations recorded across any ZIP codes in Antrim — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Antrim: B (75/100)
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
Antrim water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Antrim
- 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 |
|---|---|---|---|
| 03440 | B | Antrim Sewer and Water Department | 920 |
All ZIP Codes in Antrim
- 03440 [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.
Health Outcomes in Antrim
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
Housing & Infrastructure in Antrim
With 65% 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 more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Antrim's median build year of 1975 places it squarely in that category.
Over half of homes in Antrim 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.
Cost Context: What Remediation Means for Antrim Homeowners
Equity impact data for Antrim lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Antrim are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 25% below the New Hampshire average.
Lead Exposure Risk for Children in Antrim
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.
Routinely in Antrim, where 65% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Antrim
Over the multi-decade window covered by the National Flood Insurance Program, Antrim has accumulated 2 claims — a total that suggests more than isolated flood exposure. With 100% of ZIP codes in designated flood zones, the water-quality implications of flooding move from hypothetical to periodically relevant: treatment intake can be compromised, wells can be infiltrated, and distribution backflow can occur.
Antrim has a moderate flood history with 2 FEMA claims averaging $2,937 per payout. 100% 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>$1,600</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.
Deep Dive Reports
Detailed analysis for Antrim, NH