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Water system · PWSID SC3210004

WEST COLUMBIA CITY OF (3210004)

WEST COLUMBIA, SC · ~34,028 people served

Check your exact address → WEST COLUMBIA overview
49
Fair
PurityRadar safety score

PWSID

SC3210004

State

South Carolina

City

WEST COLUMBIA

Population served

34,028

Primary source

Surface water

Score history

▼ 51 points — the score moved from 100 to 49 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 49

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 Sep 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

7.7 ppt

limit 4 ppt

Above EPA limit · 1.9×

PFOA

Perfluorooctanoic acid

5.2 ppt

limit 4 ppt

Above EPA limit · 1.3×

GenX (HFPO-DA)

GenX (HFPO-DA)

7.6 ppt

limit 10 ppt

Near EPA limit

PFPeA

4.5 ppt

limit —

No federal limit

PFHxA

4.2 ppt

limit —

No federal limit

PFBS

3.5 ppt

limit —

No federal limit

Violations & enforcement

11

Violations on record

0

Unaddressed

1

Health-based

18

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2016. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2016 Resolved
Monitoring & reporting · Total coliform began Jul 1994 Resolved
Monitoring & reporting · Nitrate began Jul 1993 Resolved
Monitoring & reporting · Nitrate began Apr 1993 Resolved
Monitoring & reporting · Chromium (total) began Jan 1993 Resolved
Monitoring & reporting · Antimony began Jan 1993 Resolved
Monitoring & reporting · Barium began Jan 1993 Resolved
Monitoring & reporting · Nitrate began Jan 1993 Resolved
Monitoring & reporting · Selenium began Jan 1993 Resolved
Monitoring & reporting · Cadmium began Jan 1993 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

  • State action · SOX Sep 2016
  • State action · SIF Jul 2016
  • State action · SIE Jul 2016
  • State action · SIA Jul 2016
  • State action · SOX Dec 2010
  • State action · SIF Nov 2010
  • State action · SIE Oct 2010
  • State action · SIA Oct 2010

This profile is built from EPA public records for system SC3210004 — 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.