Hill, NH Water Safety: 72/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
For households in Hill, NH water data shows a consistently above-average safety picture.
How Hill Compares
Data: EPA SDWIS Last verified: 2026-06-03
Hill Water: The Quick Version
- Homes built before 1986: 61% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 11.83.
Water Systems Serving Hill
Across Hill, NH, residential water comes from 2 primary utilities rather than a single consolidated provider. Each system operates independently — managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 2 water systems in the area, with these top providers accounting for the majority of residential connections.
Overview
We track water quality and home safety data for 1 ZIP code in Hill, New Hampshire, covering 2 community water systems serving approximately 924 people.
No EPA violations recorded across any ZIP codes in Hill — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Hill: 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
Hill water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Hill
- 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 |
|---|---|---|---|
| 03243 | B | Hill Water Works | 350 |
All ZIP Codes in Hill
- 03243 [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.
CDC Health Data for Hill
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 Hill's Housing Stock?
With 61% 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
Pre-1986 plumbing is not a rare legacy case in Hill — it's the dominant profile. The median build year of 1971 indicates a housing stock where lead-soldered copper joints are a common structural feature of residences across the city.
Over half of homes in Hill 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.
Hill: Remediation Cost in Perspective
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Hill is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Hill are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 33% below the New Hampshire average.
Protecting Children from Lead in Hill
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.
61% — that captures the slice of Hill housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Hill, NH