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Water system · PWSID SC4410001

UNION CITY OF (SC4410001)

UNION, SC · ~13,076 people served

Check your exact address → UNION overview
59
Fair
PurityRadar safety score

PWSID

SC4410001

State

South Carolina

City

UNION

Population served

13,076

Primary source

Surface water

Score history

▼ 41 points — the score moved from 100 to 59 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 59

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 Jul 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

6.1 ppt

limit 4 ppt

Above EPA limit · 1.5×

PFOA

Perfluorooctanoic acid

5.9 ppt

limit 4 ppt

Above EPA limit · 1.5×

PFPeA

6.8 ppt

limit —

No federal limit

PFHxA

5.1 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

Violations & enforcement

9

Violations on record

0

Unaddressed

1

Health-based

8

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2003. Official EPA record →

Treatment technique · EPA contaminant 0300 health-based began Jan 2003 Resolved
Monitoring & reporting · Nitrate began Jul 1993 Resolved
Monitoring & reporting · Nitrate began Apr 1993 Resolved
Monitoring & reporting · Cadmium began Jan 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 · Selenium began Jan 1993 Resolved
Monitoring & reporting · Nitrate began Jan 1993 Resolved

Recent enforcement actions

  • State action · SOX Jun 2003
  • State action · SIF Feb 2003
  • State action · SIA Feb 2003
  • State action · SOX Oct 1994
  • State action · SO8 Jan 1994
  • State action · SO8 Oct 1993
  • State action · SOX Jul 1993
  • State action · SOX Apr 1993

This profile is built from EPA public records for system SC4410001 — 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.