Ardsley On Hudson, NY: High Radon Risk — 40/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Although conditions vary by service area, Ardsley On Hudson's water systems collectively show below-average compliance within NY — health-based violations are documented throughout the city, and the overall grade reflects a pattern rather than isolated incidents.
How Ardsley On Hudson Compares
Data: EPA SDWIS Last verified: 2026-06-03
Ardsley On Hudson Water: The Quick Version
- Homes built before 1986: 100% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.47.
Water Systems Serving Ardsley On Hudson
Federal drinking water records identify 1 system operating in Ardsley On Hudson, NY. One of those systems serves the overwhelming majority of residential addresses, concentrating infrastructure management, rate authority, and EPA compliance reporting within a single organization.
Overview
We track water quality and home safety data for 1 ZIP code in Ardsley On Hudson, New York, covering 1 community water system serving approximately 127 people.
No EPA violations recorded across any ZIP codes in Ardsley On Hudson — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Ardsley On Hudson: D (40/100)
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
Ardsley On Hudson water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Ardsley On Hudson
- 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 |
|---|---|---|---|
| 10503 | D | PLEASANT VIEW MHP | 125 |
All ZIP Codes in Ardsley On Hudson
- 10503 [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 Ardsley On Hudson
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 Ardsley On Hudson's Housing Stock?
With 100% 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
When a city's housing median build year is 1904, as in Ardsley On Hudson, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Ardsley On Hudson 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.
Ardsley On Hudson: Remediation Cost in Perspective
Given current Ardsley On Hudson valuations, the remediation-to-property-value ratio is low — most homeowners are looking at a proportionally modest share that fits within routine financial planning.
Remediation costs in Ardsley On Hudson are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 87% above the New York average.
Protecting Children from Lead in Ardsley On Hudson
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 100% of the Ardsley On Hudson inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Ardsley On Hudson
- 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 100% 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 Ardsley On Hudson, NY