Coeymans Hollow, NY: High Radon Risk — 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
In recent EPA cycles, Coeymans Hollow shows a persistent below-average water quality pattern within NY — documented violations span multiple service areas and have appeared consistently across reporting periods.
How Coeymans Hollow Compares
Data: EPA SDWIS Last verified: 2026-06-04
What You Should Know About Coeymans Hollow Water
- Homes built before 1986: 75% — older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 11.17.
Who Supplies Your Water in Coeymans Hollow
While 1 water system appear in federal records for Coeymans Hollow, NY, one provider supplies the majority of residential connections — making it the central point of infrastructure and compliance accountability for most households.
Overview
We track water quality and home safety data for 1 ZIP code in Coeymans Hollow, New York (population ~612), covering 1 community water system serving approximately 4,500 people region-wide.
No EPA violations recorded across any ZIP codes in Coeymans Hollow — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Coeymans Hollow: D (53/100)
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
Coeymans Hollow water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Coeymans Hollow
- 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 |
|---|---|---|---|
| 12046 | D | RAVENA VILLAGE | 4,500 |
All ZIP Codes in Coeymans Hollow
- 12046 [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.
Health Outcomes in Coeymans Hollow
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 Coeymans Hollow
With 75% 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
The median home in Coeymans Hollow was built in 1940 — a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.
Over half of homes in Coeymans Hollow 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.
Cost Context: What Remediation Means for Coeymans Hollow Homeowners
For most homeowners in Coeymans Hollow, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth — placing this area in the lower tier of the remediation share scale.
Remediation costs in Coeymans Hollow are relatively low compared to home values. The $1,600–$3,300 estimated range is a small fraction of median property value. Home values are 25% below the New York average.
Lead Exposure Risk for Children in Coeymans Hollow
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.
Older interior plumbing shapes the local picture: 75% of Coeymans Hollow homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Coeymans Hollow
100% of ZIP codes in Coeymans Hollow are mapped into FEMA-designated flood zones, and the NFIP records 5 claims reflecting a multi-event flood history. That combination places local flood exposure in the range where water-quality implications deserve at least periodic attention.
Coeymans Hollow has a moderate flood history with 5 FEMA claims averaging $2,670 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>$2,400</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 Coeymans Hollow
- 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 75% 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 Coeymans Hollow, NY