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Water system · PWSID SC4650063

CATAWBA INDIAN NATION CWS (SC4650063)

ROCK HILL, SC · ~446 people served

Check your exact address → ROCK HILL overview
100
Excellent
PurityRadar safety score

PWSID

SC4650063

State

South Carolina

City

ROCK HILL

Population served

446

Primary source

SWP

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

15

Violations on record

0

Unaddressed

7

Health-based

39

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2017. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2016 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Dec 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2014 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2012 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2010 Resolved
Monitoring & reporting · EPA contaminant 0600 began Jul 2009 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved

Recent enforcement actions

  • State action · SOX Jan 2017
  • State action · SIF Jul 2016
  • State action · SIE Jun 2016
  • State action · SIA Jun 2016
  • State action · SIE Mar 2016
  • State action · SIE Mar 2016
  • State action · SIA Mar 2016
  • State action · SIA Mar 2016

This profile is built from EPA public records for system SC4650063 — 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.