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Water system · PWSID SD4600153

HENRY

100
Excellent
PurityRadar safety score

PWSID

SD4600153

State

South Dakota

City

HENRY

Population served

256

Primary source

GWP

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

24

Violations on record

1

Unaddressed

4

Health-based

66

Enforcement actions

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

Treatment technique · EPA contaminant 0400 health-based began May 2025 Unaddressed
Monitoring · Lead & Copper Rule began May 2025 Resolved
Monitoring · Lead & Copper Rule began Apr 2025 Resolved
Monitoring · Lead & Copper Rule began Mar 2025 Resolved
Monitoring · Lead & Copper Rule began Feb 2025 Resolved
Monitoring · Lead & Copper Rule began Jan 2025 Resolved
Monitoring · Lead & Copper Rule began Dec 2024 Resolved
Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Monitoring · Lead & Copper Rule began Oct 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved
Monitoring · Lead & Copper Rule began Aug 2024 Resolved
Monitoring · Lead & Copper Rule began Jun 2024 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SOX Sep 2025
  • State action · SOX Jul 2025
  • State action · SOX Jul 2025
  • State action · SOX Jul 2025
  • State action · SOX Jul 2025
  • State action · SOX Jul 2025
  • State action · SOX Jul 2025

This profile is built from EPA public records for system SD4600153 — 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.