Water report · not indexed
What is in the water at 10589
2 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
SOMERS TOWN HOUSE/HALL
PWSID NY5906659 · NY
PFAS and lithium
7 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 14 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFOS | 0.055 µg/L | 2 | 5/21/2024 |
| PFOA | 0.021 µg/L | 2 | 5/21/2024 |
| PFBS | 0.019 µg/L | 2 | 5/21/2024 |
| PFPeA | 0.0091 µg/L | 2 | 5/21/2024 |
| PFHxS | 0.0068 µg/L | 2 | 5/21/2024 |
| PFHpA | 0.0068 µg/L | 2 | 5/21/2024 |
| PFHxA | 0.0065 µg/L | 2 | 5/21/2024 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
38 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- MCL · contaminant code 2806 · began 2021-01-01
- MCL · contaminant code 2805 · began 2021-01-01
- MCL · contaminant code 2806 · began 2021-04-01
- MCL · contaminant code 2805 · began 2021-04-01
- MCL · contaminant code 2806 · began 2021-07-01
- MCL · contaminant code 2805 · began 2021-07-01
- MCL · contaminant code 2805 · began 2021-10-01
- MCL · contaminant code 2806 · began 2021-10-01
Hardness
No hardness measurement. Hardness is measured at environmental monitoring stations, and none fell inside this system’s service area. That is a gap in where monitoring happens, not a finding about the water.
HERITAGE HILLS WATER SYSTEM
PWSID NY5917221 · NY · serves 4,700 people
PFAS and lithium
2 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 4 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFOA | 0.0066 µg/L | 2 | 8/19/2024 |
| PFOS | 0.0061 µg/L | 2 | 8/19/2024 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
1 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- MCL · contaminant code 2806 · began 2025-10-01
Hardness
No hardness measurement. Hardness is measured at environmental monitoring stations, and none fell inside this system’s service area. That is a gap in where monitoring happens, not a finding about the water.
What this report cannot tell you
Every figure describes water at a sampling point: a treatment plant, an entry point to the distribution system, or a monitoring station. None of it describes water arriving at your tap. Plumbing between the two can add lead and copper, and if your home was built before 1986 a test kit tells you something no federal dataset can.
Sources: EPA UCMR 5 occurrence (final release, frozen July 2026) · EPA SDWIS health-based violations · USGS and state monitoring via the Water Quality Portal · EPA Public Water System Service Area Boundaries v3. Compiled 2026-09-01.