Thompson Ridge, NY: High Radon Risk — 40/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Federal monitoring data for Thompson Ridge puts the city in NY's lower safety tier — exceedances show up in multiple utility districts, several systems have met thresholds requiring public notification under the Safe Drinking Water Act, and the compliance deficit has persisted across more than one consecutive reporting cycle, with no clear reversal visible in the most recent data available.
How Thompson Ridge Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Thompson Ridge Residents
- Homes built before 1986: 47% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 11.77.
Thompson Ridge's Water Providers
A single utility carries the primary residential water load in Thompson Ridge, NY — the dominant provider across 1 federally tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Thompson Ridge, New York (population ~18), covering 1 community water system serving approximately 7,600 people region-wide.
No EPA violations recorded across any ZIP codes in Thompson Ridge — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Thompson Ridge: 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
Thompson Ridge water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Thompson Ridge
- 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 |
|---|---|---|---|
| 10985 | D | PINE BUSH WATER DISTRICT | 7,600 |
All ZIP Codes in Thompson Ridge
- 10985 [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.
Thompson Ridge 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
Thompson Ridge Infrastructure Age
With 47% 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 a city with a median build year of 1983, Thompson Ridge carries a housing profile that straddles the 1986 federal ban on lead solder in plumbing. Neither predominantly new nor predominantly old, the stock presents a moderate aggregate risk environment — with individual risk varying sharply depending on when and where a specific home was built.
Most homes in Thompson Ridge were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Thompson Ridge: 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.
Wherever 47% of local housing was built before solder rules changed — as is the case in Thompson Ridge — 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.
What You Can Do in Thompson Ridge
- 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 47% 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 Thompson Ridge, NY