HURON

HURON, SD · ~14,263 people served

Check your exact address → HURON overview

100

Excellent

PurityRadar safety score

PWSID

SD4600169

State

South Dakota

City

HURON

Population served

14,263

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2023). Levels in parts per trillion (ppt).

Lithium

61,900 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 1993. Official EPA record →

Monitoring & reporting · Nitrate began Apr 1993 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 1992 Resolved

Recent enforcement actions

State action · SOX Sep 1993
State action · SO6 Jul 1993
State action · SOX Jun 1993
State action · SFL Mar 1993
State action · SIF Dec 1992
State action · SFN Nov 1992
State action · SIE Nov 1992
State action · SIA Sep 1989

This profile is built from EPA public records for system SD4600169 — 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.