611 HARMON LLC (SC4060012)

COLUMBIA, SC · ~24 people served

Check your exact address → COLUMBIA overview

100

Excellent

PurityRadar safety score

PWSID

SC4060012

State

South Carolina

City

COLUMBIA

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7000 began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Max contaminant level (MCL) · Lead & Copper Rule health-based began Aug 2021 Resolved

Monitoring & reporting · EPA contaminant 3014 began Jun 2018 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2014 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 2012 Resolved

Monitoring & reporting · EPA contaminant 3014 began Dec 2010 Resolved

Monitoring & reporting · Total coliform began Dec 2010 Resolved

Other · EPA contaminant 7000 began Jul 2005 Resolved

Recent enforcement actions

State action · SIA Jul 2025
State action · SIE Jul 2025
State action · SIE Jan 2025
State action · SIA Jan 2025
State action · SIE Jan 2025
State action · SIA Jan 2025
State action · SOX Jan 2025
State action · SOX Jan 2025

This profile is built from EPA public records for system SC4060012 — 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.