West Swanzey, NH Water Safety: 75/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
West Swanzey tap water earns a high safety grade — above-average compliance with NH and federal standards.
How West Swanzey Compares
Data: EPA SDWIS Last verified: 2026-06-04
What You Should Know About West Swanzey Water
- Estimated remediation: $2,200 per household.
- CDC health risk index: 12.22 — above typical levels.
Who Supplies Your Water in West Swanzey
West Swanzey, 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 Swanzey, New Hampshire, covering 1 community water system serving approximately 430 people.
No EPA violations recorded across any ZIP codes in West Swanzey — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for West Swanzey: 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 Swanzey water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for West Swanzey
- 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 |
|---|---|---|---|
| 03469 | B | West Swanzey Water | 430 |
All ZIP Codes in West Swanzey
- 03469 [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 Swanzey
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
Flood & Climate Risk in West Swanzey
West Swanzey's flood exposure sits in the moderate range: 1 NFIP claim on record and 100% of ZIP codes within FEMA-designated flood zones. Residents with private wells or older infrastructure have reasonable grounds to factor flood timing into their water quality awareness.
West Swanzey has a moderate flood history with 1 FEMA claims. 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.
Deep Dive Reports
Detailed analysis for West Swanzey, NH