Home hazard report for 12181 — Troy, NY
ZIP 12181 is served by Troy City PWS: 3 violations since 2016, latest lead result 110 ppb, PFAS not detected. Rensselaer is in EPA radon zone 1.
Health-based violations since 2016: TTHM, Lead and Copper Rule. All are listed as resolved.
The 90th-percentile lead level in the latest round (Jan 2026) was above EPA's 15 ppb action level, which requires the utility to take further steps.
None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.
Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
No active Superfund site within 10 miles of the ZIP center.
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Where ZIP 12181 is
blue: utility service area · scroll or pinch to zoomDrinking water: Troy City PWS
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| TTHM | 2 |
| Lead and Copper Rule | 1 |
A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Oct 2021.
Lead
90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.
PFAS (“forever chemicals”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFOS | not detected | 0 of 4 | 4 ppt MCL |
| PFPeA | not detected | 0 of 4 | — |
| PFBA | not detected | 0 of 4 | — |
| HFPO-DA (GenX) | not detected | 0 of 4 | — |
| PFHxS | not detected | 0 of 4 | — |
| PFBS | not detected | 0 of 4 | — |
| PFHxA | not detected | 0 of 4 | — |
| PFDA | not detected | 0 of 4 | — |
| PFOA | not detected | 0 of 4 | 4 ppt MCL |
| PFNA | not detected | 0 of 4 | — |
| PFHpA | not detected | 0 of 4 | — |
EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.
Radon in Rensselaer
EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Mercury Refining, Inc. Colonie, New York · EPA ID NYD048148175 | Cleaned up & deleted | 7.4 mi |
EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions about 12181
Who supplies drinking water to ZIP 12181?
Troy City PWS (EPA ID NY4100050), a surface water (rivers, lakes) system serving about 51,401 people.
Is there lead in Troy, NY tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 110 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.
Does Troy, NY water have PFAS?
None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.
Has the water system in 12181 had violations?
Health-based violations since 2016: TTHM, Lead and Copper Rule. All are listed as resolved.
Are there Superfund sites near 12181?
No active Superfund site within 10 miles of the ZIP center. Sites within 10 miles: Mercury Refining, Inc. (7.4 mi, Cleaned up & deleted).
Is radon a problem in Rensselaer?
Rensselaer is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.