NORTH CASTLE WATER DISTRICT #2

PWSID: NY5903446 · Armonk, NY · Serves 1,200 people

According to EPA Safe Drinking Water Information System (SDWIS), NORTH CASTLE WATER DISTRICT #2 (PWSID NY5903446) in Armonk, NY is listed as a CWS water system covering about 1,200 people. The same extract lists 25 health-based violation records spanning 2022-2025. Those 25 health-based rows for NORTH CASTLE WATER DISTRICT #2 cover contaminants such as PERFLUOROCTANOIC ACID (PFOA), PERFLUOROCTANE SULFONIC ACID (PFOS); they remain historical EPA registry entries, not a current compliance or drinkability score.

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Health-Based Records

NORTH CASTLE WATER DISTRICT #2 has 25 health-based violation records in this historical extract. Monitoring and reporting records are not included.

Population Served
1,200
Health-Based Violation Records
25
Distinct Contaminant Codes
2
Source Type
Groundwater

PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including PERFLUOROCTANOIC ACID (PFOA), PERFLUOROCTANE SULFONIC ACID (PFOS). Recorded violations span 2022–2025. Day-to-day primacy enforcement for this system runs through the New York drinking-water program, not EPA directly.

A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the New York state drinking-water program's public portal.

System Details

EPA ID (PWSID)
NY5903446
System Type
CWS
Water Source
Groundwater
Location
Armonk, NY
Population Served
1,200
Health Violations
Yes (25)

What contaminants are in this water system?

Contaminant Violations Health-Based
PERFLUOROCTANOIC ACID (PFOA) 21 21
PERFLUOROCTANE SULFONIC ACID (PFOS) 4 4

Violation History (25)

Contaminant Health Date
PERFLUOROCTANOIC ACID (PFOA) Yes Oct 1, 2025
PERFLUOROCTANE SULFONIC ACID (PFOS) Yes Oct 1, 2025
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2025
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2025
PERFLUOROCTANOIC ACID (PFOA) Yes Apr 1, 2025
PERFLUOROCTANOIC ACID (PFOA) Yes Oct 1, 2024
PERFLUOROCTANOIC ACID (PFOA) Yes Oct 1, 2024
PERFLUOROCTANOIC ACID (PFOA) Yes Jan 1, 2024
PERFLUOROCTANE SULFONIC ACID (PFOS) Yes Jul 1, 2023
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2023
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2023
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2023
PERFLUOROCTANOIC ACID (PFOA) Yes Apr 1, 2023
PERFLUOROCTANOIC ACID (PFOA) Yes Jan 1, 2023
PERFLUOROCTANOIC ACID (PFOA) Yes Oct 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Jul 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Apr 1, 2022
PERFLUOROCTANE SULFONIC ACID (PFOS) Yes Apr 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Apr 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Apr 1, 2022
PERFLUOROCTANE SULFONIC ACID (PFOS) Yes Jan 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Jan 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Jan 1, 2022
PERFLUOROCTANOIC ACID (PFOA) Yes Jan 1, 2022

Frequently Asked Questions

What does EPA SDWIS list for NORTH CASTLE WATER DISTRICT #2?
NORTH CASTLE WATER DISTRICT #2 has 25 health-based violation records in this historical extract. Monitoring and reporting records are not included. The system uses groundwater water as its source.
How many people does NORTH CASTLE WATER DISTRICT #2 serve?
NORTH CASTLE WATER DISTRICT #2 serves 1,200 people in Armonk, NY. It is classified as a CWS water system.
What violations does NORTH CASTLE WATER DISTRICT #2 have?
NORTH CASTLE WATER DISTRICT #2 has 25 health-based violation records in PlainEnviro's extract spanning 2022–2025. Monitoring and reporting records are not included.
What contaminants have been found in NORTH CASTLE WATER DISTRICT #2 water?
Violations have been recorded for 2 contaminants. The most frequent: PERFLUOROCTANOIC ACID (PFOA), PERFLUOROCTANE SULFONIC ACID (PFOS).

Compare beyond New York

Nationwide peers by violations & population served

Cross-state SDWIS systems nearest NORTH CASTLE WATER DISTRICT #2 on cumulative violation count (25) and EPA-reported population served (1,200). Violation-count peers include GILBERTOWN, UTILITIES BOARD OF TOWN OF, BRANCH WATER WORKS, JUNIPER RIVIERA CWD. Population peers include Cochiti Pueblo, FOUR BEARS WATER SYSTEM, PARSHALL, CITY OF.

About This Data

NORTH CASTLE WATER DISTRICT #2 (NY5903446) is drawn from EPA SDWIS. Nearby county systems in this extract include NEW YORK CITY SYSTEM; YONKERS CITY; GREENBURGH CONSOLIDATED WD #1; MOUNT VERNON WATER DEPARTMENT. Health-based rows (25 MCL/TT) are historical registry state, not a current drinkability score.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

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