HUDSON

HUDSON, SD · ~332 people served

Check your exact address → HUDSON overview

100

Excellent

PurityRadar safety score

PWSID

SD4600166

State

South Dakota

City

HUDSON

Population served

332

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2000. Official EPA record →

Other · EPA contaminant 7000 began Jul 2000 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1991 Resolved

Monitoring & reporting · Total coliform began Sep 1991 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1991 Resolved

Max contaminant level (MCL) · Total coliform health-based began Mar 1991 Resolved

Recent enforcement actions

State action · SOX Jul 2000
State action · SIA Jul 2000
State action · SOX Dec 1992
State action · SOX Apr 1992
State action · SOX Apr 1992
State action · SOX Apr 1992
State action · SFG Dec 1991
State action · SIE Oct 1991

This profile is built from EPA public records for system SD4600166 — 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.