NORTH CASTLE WATER DISTRICT #1

ARMONK, NY · ~2,500 people served

Check your exact address → ARMONK overview

100

Excellent

PurityRadar safety score

PWSID

NY5903445

State

New York

City

ARMONK

Population served

2,500

Primary source

SWP

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Monitoring · Lead & Copper Rule began Jan 2020 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2016 Resolved

Recent enforcement actions

State action · SIF May 2023
State action · SOX May 2023
State action · SIE Nov 2022
State action · SFJ Nov 2022
State action · SOX Sep 2020
State action · SIF Sep 2020
State action · SIE Feb 2020
State action · SFJ Feb 2020

This profile is built from EPA public records for system NY5903445 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.