Sullivan, NH Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Public water compliance in Sullivan falls below the NH baseline — elevated violation rates are on record.
How Sullivan Compares
Data: EPA SDWIS Last verified: 2026-06-03
Sullivan Water: The Quick Version
- Homes built before 1986: 62% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 12.22 — above typical levels.
Water Systems Serving Sullivan
Sullivan, 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 Sullivan, New Hampshire (population ~699), covering 1 community water system serving approximately 30,000 people region-wide.
No EPA violations recorded across any ZIP codes in Sullivan — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Sullivan: D (53/100)
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
Sullivan water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Sullivan
- 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 |
|---|---|---|---|
| 03445 | D | KEENE WATER DEPT | 30,000 |
All ZIP Codes in Sullivan
- 03445 [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.
CDC Health Data for Sullivan
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
How Old Is Sullivan's Housing Stock?
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
Sullivan's housing stock is predominantly older, with a median build year of 1972 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 Sullivan 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.
Sullivan: Remediation Cost in Perspective
Property equity in Sullivan runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Sullivan are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 42% below the New Hampshire average.
Protecting Children from Lead in Sullivan
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.
62% of Sullivan housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark — household-level confirmation through a draw-test kit fits the local picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Sullivan
- 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 62% 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 Sullivan, NH