West Harrison, NY: High Radon Risk — 45/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
A meaningful share of water systems in West Harrison have recorded health-based violations in recent NY monitoring periods — placing the city in the lower tier for tap water safety.
How West Harrison Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for West Harrison Residents
- Homes built before 1986: 81% — older plumbing may contain lead solder.
- Estimated remediation: $3,000 per household.
- CDC health risk index: 10.47.
West Harrison's Water Providers
4 water systems are tracked federally in West Harrison, NY. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 1 ZIP code in West Harrison, New York (population ~12,192), covering 4 community water systems serving approximately 178,989 people region-wide.
No EPA violations recorded across any ZIP codes in West Harrison — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for West Harrison: D (45/100)
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 Harrison water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for West Harrison
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High 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 |
|---|---|---|---|
| 10604 | D | WHITE PLAINS CITY | 59,559 |
All ZIP Codes in West Harrison
- 10604 [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.
West Harrison Community Health Snapshot
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
West Harrison Infrastructure Age
With 81% 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
For residents trying to assess tap water risk in West Harrison, the median build year of 1951 is the starting context. It signals that a majority of homes were constructed before 1986 — the year federal rules prohibited lead solder in new plumbing — and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.
Over half of homes in West Harrison 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.
How Remediation Costs Compare in West Harrison
In West Harrison, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in West Harrison are relatively low compared to home values. The $2,000–$4,000 estimated range is a small fraction of median property value. Home values are 125% above the New York average.
West Harrison: Lead Risk & Vulnerable Populations
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.
81% of West Harrison 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.
West Harrison: Flood History & Water Damage Risk
FEMA data shows 100% of West Harrison's ZIP codes mapped into designated flood zones, paired with an NFIP record of 37 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
West Harrison has a moderate flood history with 37 FEMA claims averaging $41,540 per payout. 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>$3,000</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.
What You Can Do in West Harrison
- 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 81% 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 West Harrison, NY