BGWC MALLARD LAKES (SC4650057)

COLUMBIA, SC · ~137 people served

Check your exact address → COLUMBIA overview

100

Excellent

PurityRadar safety score

PWSID

SC4650057

State

South Carolina

City

COLUMBIA

Population served

137

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 Jan 2004. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2002 Resolved

Monitoring & reporting · Nitrate began Jan 2001 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 1999 Resolved

Monitoring & reporting · EPA contaminant 2041 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2040 began Jan 1999 Resolved

Monitoring & reporting · Chlorite began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2110 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2326 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2041 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2040 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2031 began Jan 1999 Resolved

Recent enforcement actions

State action · SOX Jan 2004
State action · SOX Jan 2004
State action · SIF Jul 2003
State action · SIA Jan 2003
State action · SOX Oct 2002
State action · SFO Jul 2002
State action · SIF Jul 2002
State action · SIF Jun 2002

This profile is built from EPA public records for system SC4650057 — 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.