CORONA

CORONA, SD · ~69 people served

Check your exact address → CORONA overview

100

Excellent

PurityRadar safety score

PWSID

SD4600009

State

South Dakota

City

CORONA

Population served

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 Aug 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Aug 2023 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Aug 2023 Resolved

Monitoring · Lead & Copper Rule began May 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2006 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2006 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2005 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1997 Resolved

Monitoring & reporting · Nitrate began Jan 1997 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1996 Resolved

Recent enforcement actions

State action · SIA Aug 2025
State action · SOX Sep 2024
State action · SOX Sep 2024
State action · SOX Sep 2024
State action · SIE Dec 2023
State action · SIE Oct 2023
State action · SIE Oct 2023
State action · SOX Jul 2018

This profile is built from EPA public records for system SD4600009 — 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.