West Stewartstown, NH Water Safety: 75/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
In current tracking cycles, West Stewartstown records above-average water quality outcomes for NH; compliance history over recent years shows few departures from federal standards and no systemic failures across its water systems.
How West Stewartstown Compares
Data: EPA SDWIS Last verified: 2026-06-04
What You Should Know About West Stewartstown Water
- Homes built before 1986: 67% — older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 14.55 — above typical levels.
Who Supplies Your Water in West Stewartstown
West Stewartstown, NH runs on one primary water provider among the 1 federally tracked system. A single utility is responsible for the overwhelming share of residential supply — including the infrastructure, compliance filings, and rate schedules that govern service for most households.
Overview
We track water quality and home safety data for 1 ZIP code in West Stewartstown, New Hampshire, covering 1 community water system serving approximately 553 people.
No EPA violations recorded across any ZIP codes in West Stewartstown — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for West Stewartstown: 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
West Stewartstown water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for West Stewartstown
- 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 |
|---|---|---|---|
| 03597 | B | W Stewartstown Water Pct | 428 |
All ZIP Codes in West Stewartstown
- 03597 [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 West Stewartstown
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 West Stewartstown
With 67% 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
Federal plumbing rules changed in two stages — lead pipes were phased out before 1970, and lead solder was banned in 1986 — but in West Stewartstown, where the median build year is 1971, most of the housing was already in place before those rules took effect. The materials installed under older standards remain embedded in a substantial portion of the residential inventory today.
Over half of homes in West Stewartstown 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.
Lead Exposure Risk for Children in West Stewartstown
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.
Wherever 67% of local housing was built before solder rules changed — as is the case in West Stewartstown — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in West Stewartstown
Insurance claims filed under FEMA's NFIP for West Stewartstown remain modest — consistent with limited flood exposure and an environment where flood-related water quality disruptions stay infrequent. The mechanisms connecting flooding to water safety are real but require event conditions that rarely appear at this claim volume.
West Stewartstown has a relatively low flood history with 2 FEMA claims on record. While risk is limited, severe weather events can still impact water infrastructure.
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.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for West Stewartstown, NH