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Water system · PWSID MS0090005

CITY OF HOUSTON

100
Excellent
PurityRadar safety score

PWSID

MS0090005

State

Mississippi

City

HOUSTON

Population served

3,772

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

Latest detections from EPA’s UCMR5 monitoring (through Aug 2025). Levels in parts per trillion (ppt).

Lithium

12,000 ppt

limit —

No federal limit

Violations & enforcement

190

Violations on record

0

Unaddressed

0

Health-based

64

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved
Monitoring & reporting · Total coliform began Nov 2013 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2013 Resolved
Monitoring & reporting · EPA contaminant 4030 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 4030 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 4030 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 4020 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 4020 began Apr 2012 Resolved

Recent enforcement actions

  • State action · SOX Jul 2025
  • State action · SO+ Mar 2025
  • State action · SOX Oct 2024
  • State action · SIF May 2024
  • State action · SIE May 2024
  • State action · SFJ May 2024
  • State action · SO+ Mar 2024
  • State action · SOX Mar 2014

This profile is built from EPA public records for system MS0090005 — 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.