North Haverhill, NH: 3 Violations — 71/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-04
EPA compliance records for North Haverhill tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within NH.
How North Haverhill Compares
Data: EPA SDWIS Last verified: 2026-06-04
North Haverhill Water: The Quick Version
- Your city's water systems recorded 3 violations in the past 5 years.
- Homes built before 1986: 55% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 11.38.
Water Systems Serving North Haverhill
Residential addresses in North Haverhill, NH are served by 3 primary water providers out of 4 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.
Overview
We track water quality and home safety data for 1 ZIP code in North Haverhill, New Hampshire (population ~1,606), covering 4 community water systems serving approximately 3,639 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for North Haverhill: B (71/100)
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 Haverhill water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for North Haverhill
- 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 1 |
| Total Coliform | Microbiological | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 03774 | B | 3 | 0 | No Haverhill Water and Light |
All ZIP Codes in North Haverhill
- 03774 [B] — 3 violations
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.
CDC Health Data for North Haverhill
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
Key Contaminants Detected in North Haverhill
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is North Haverhill's Housing Stock?
With 55% 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 Haverhill's housing stock is predominantly older, with a median build year of 1971 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 Haverhill 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.
North Haverhill: Remediation Cost in Perspective
When estimated remediation is placed alongside median property values in North Haverhill, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.
Remediation costs in North Haverhill are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 48% below the New Hampshire average.
Protecting Children from Lead in North Haverhill
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.
Practically, the structural drivers in North Haverhill — 55% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for North Haverhill, NH