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Water system · PWSID TX0310001

BROWNSVILLE PUBLIC UTILITIES BOARD

BROWNSVILLE, TX · ~201,249 people served

Check your exact address → BROWNSVILLE overview
68
Fair
PurityRadar safety score

PWSID

TX0310001

State

Texas

City

BROWNSVILLE

Population served

201,249

Primary source

Surface water

Score history

▼ 32 points — the score moved from 100 to 68 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 68

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 Jun 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

8 ppt

limit 4 ppt

Above EPA limit · 2.0×

PFOA

Perfluorooctanoic acid

4.7 ppt

limit 4 ppt

Above EPA limit · 1.2×

PFHxS

Perfluorohexanesulfonic acid

3.2 ppt

limit 10 ppt

Below EPA limit

Lithium

51,100 ppt

limit —

No federal limit

PFBA

6.4 ppt

limit —

No federal limit

PFPeA

5.3 ppt

limit —

No federal limit

PFHxA

4.5 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

1

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2010. Official EPA record →

Treatment technique · EPA contaminant 0300 health-based began Dec 2008 Resolved
Monitoring & reporting · EPA contaminant 0300 began Jan 2005 Resolved

Recent enforcement actions

  • State action · SOX Aug 2010
  • State action · SIA Apr 2008
  • State action · SIE Apr 2008
  • State action · SFK Jan 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

Nitrate

1 station · latest Aug 2023

0.681 · max 2.39 mg/l as N · 72

Fluoride

1 station · latest Oct 2023

0.675 · max 0.87 mg/l · 46

Arsenic

1 station · latest Oct 2023

4.9 · max 9.1 ug/l · 42

Atrazine

1 station · latest Dec 2023

9.85 · max 172 ng/l · 32

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 TX0310001 — 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.