North Hampton, NH Water Safety: 50/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
The latest EPA cycle for North Hampton shows a low safety grade within NH — compliance gaps have persisted over multiple reporting periods, and the city currently holds a low grade in available EPA data.
How North Hampton Compares
Data: EPA SDWIS Last verified: 2026-06-04
What You Should Know About North Hampton Water
- Homes built before 1986: 52% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
- CDC health risk index: 11.66.
Who Supplies Your Water in North Hampton
North Hampton, NH draws its water from one primary utility across 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in North Hampton, New Hampshire (population ~4,563), covering 1 community water system serving approximately 34,000 people region-wide.
No EPA violations recorded across any ZIP codes in North Hampton — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for North Hampton: D (50/100)
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
North Hampton water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for North Hampton
- 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 |
|---|---|---|---|
| 03862 | D | AQUARION WATER/NH | 34,000 |
All ZIP Codes in North Hampton
- 03862 [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 North Hampton
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 North Hampton
With 52% 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
North Hampton's housing stock is predominantly older, with a median build year of 1985 that reflects decades of construction before federal plumbing standards were tightened. The 1986 ban on lead solder and the pre-1970 era of lead service lines are both relevant benchmarks here — a significant share of the residential inventory predates one or both of those cutoffs, creating an elevated baseline for plumbing-related lead risk that aggregate water quality data may not fully reflect at the household level.
Over half of homes in North Hampton 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 North Hampton Homeowners
How much of a North Hampton home's value does documented remediation represent? A small fraction — the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.
Remediation costs in North Hampton are relatively low compared to home values. The $1,200–$3,400 estimated range is a small fraction of median property value. Home values are 68% above the New Hampshire average.
Lead Exposure Risk for Children in North Hampton
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.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 52% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in North Hampton.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in North Hampton
Flood exposure in North Hampton is meaningful by NFIP measures — 65 claims on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
North Hampton has a moderate flood history with 65 FEMA claims averaging $14,023 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>$2,200</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.
What You Can Do in North Hampton
- 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. With 52% of homes built before 1986, lead solder is a real possibility.
- 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 North Hampton, NH