RIVERSIDE COLONY

HURON, SD · ~80 people served

Check your exact address → HURON overview

100

Excellent

PurityRadar safety score

PWSID

SD4602040

State

South Dakota

City

HURON

Population served

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

164

Violations on record

Unaddressed

Health-based

138

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2050 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2306 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2035 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2042 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2383 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2051 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2065 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2067 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2005 began Jan 2014 Resolved

Recent enforcement actions

State action · SOX Jun 2019
State action · SIA Feb 2017
State action · SOX May 2014
State action · SOX May 2014
State action · SOX May 2014
State action · SOX May 2014
State action · SOX May 2014
State action · SOX May 2014

This profile is built from EPA public records for system SD4602040 — 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.