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Water system · PWSID SC2620004

GSW&SA (SC2620004)

CONWAY, SC · ~252,840 people served

Check your exact address → CONWAY overview

Fair

PurityRadar safety score

PWSID

SC2620004

State

South Carolina

City

CONWAY

Population served

252,840

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

PFOS

Perfluorooctanesulfonic acid

6.7 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFOA

Perfluorooctanoic acid

5.3 ppt

limit 4 ppt

Above EPA limit · 1.3×

Lithium

11,300 ppt

limit —

No federal limit

PFBA

6.9 ppt

limit —

No federal limit

PFPeA

4.6 ppt

limit —

No federal limit

PFBS

3.7 ppt

limit —

No federal limit

PFHpA

3.6 ppt

limit —

No federal limit

PFHxA

3.3 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2005. Official EPA record →

Other · EPA contaminant 7000 began Jul 2005 Resolved

Other · EPA contaminant 7000 began May 2000 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 · Cadmium began Jan 1993 Resolved

Monitoring & reporting · Selenium began Jan 1993 Resolved

Monitoring & reporting · Barium began Jan 1993 Resolved

Monitoring & reporting · Nitrate began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Jul 2005
State action · SIA Jul 2005
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

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

3 stations · latest Apr 2026

0.019 · max 0.038 mg/L · 58

Lead

1 station · latest Aug 2022

0.026 · max 0.026 mg/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system SC2620004 — 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.