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Water system · PWSID CT0189971

39 HOP BROOK RD - APT COMPLEX

DANBURY, CT · ~36 people served

Check your exact address → DANBURY overview
100
Excellent
PurityRadar safety score

PWSID

CT0189971

State

Connecticut

City

DANBURY

Population served

36

Primary source

Groundwater

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

226

Violations on record

1

Unaddressed

9

Health-based

186

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jul 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2023 Resolved
Monitoring · Lead & Copper Rule began Sep 2022 Resolved
Other · EPA contaminant 7000 began Aug 2022 Resolved
Monitoring · Lead & Copper Rule began Aug 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2022 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2021 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2021 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 2021 Resolved

Recent enforcement actions

  • State action · SIF Dec 2025
  • State action · SIA Dec 2025
  • State action · SIE Dec 2025
  • State action · SIF Feb 2024
  • State action · SIF Feb 2024
  • State action · SIF Feb 2024
  • State action · SOX Dec 2023
  • State action · SOX Dec 2023

This profile is built from EPA public records for system CT0189971 — 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.