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Water system · PWSID TX2140016

RIO WSC

RIO GRANDE CITY, TX · ~6,939 people served

Check your exact address → RIO GRANDE CITY overview
100
Excellent
PurityRadar safety score

PWSID

TX2140016

State

Texas

City

RIO GRANDE CITY

Population served

6,939

Primary source

Surface water

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

Lithium

43,700 ppt

limit —

No federal limit

PFBA

7.7 ppt

limit —

No federal limit

Violations & enforcement

49

Violations on record

4

Unaddressed

2

Health-based

123

Enforcement actions

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

Other · EPA contaminant 7500 began Dec 2021 Unaddressed
Other · EPA contaminant 7500 began Nov 2021 Unaddressed
Other · EPA contaminant 7500 began Oct 2021 Unaddressed
Other · EPA contaminant 7500 began Sep 2021 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2021 Resolved
Monitoring & reporting · Nitrate began Oct 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2021 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2021 Resolved

Recent enforcement actions

  • State action · SIF May 2025
  • State action · SIF May 2025
  • State action · SOX Apr 2025
  • State action · SOX Apr 2025
  • State action · SOX Apr 2025
  • State action · SOX Apr 2025
  • State action · SIE Apr 2025
  • State action · SIE Apr 2025

This profile is built from EPA public records for system TX2140016 — 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.