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Water system · PWSID TX1780003

CITY OF CORPUS CHRISTI

CORPUS CHRISTI, TX · ~318,387 people served

Check your exact address → CORPUS CHRISTI overview
100
Excellent
PurityRadar safety score

PWSID

TX1780003

State

Texas

City

CORPUS CHRISTI

Population served

318,387

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 Oct 2023). Levels in parts per trillion (ppt).

Lithium

26,200 ppt

limit —

No federal limit

PFBA

12 ppt

limit —

No federal limit

PFHxA

3.8 ppt

limit —

No federal limit

PFPeA

3.4 ppt

limit —

No federal limit

Violations & enforcement

16

Violations on record

0

Unaddressed

9

Health-based

53

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2021. Official EPA record →

Treatment technique · EPA contaminant 0300 health-based began Feb 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Feb 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2017 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2015 Resolved
Monitoring & reporting · Total coliform began Aug 2014 Resolved
Other · EPA contaminant 7500 began Sep 2013 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2013 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2013 Resolved
Treatment technique · EPA contaminant 0300 health-based began Nov 2009 Resolved
Treatment technique · EPA contaminant 0300 health-based began Nov 2009 Resolved
Other · EPA contaminant 7500 began Aug 2007 Resolved

Recent enforcement actions

  • State action · SIA May 2021
  • State action · SIA May 2021
  • State action · SOX Apr 2021
  • State action · SIF Mar 2021
  • State action · SIF Mar 2021
  • State action · SIE Feb 2021
  • State action · SIE Feb 2021
  • State action · SOX Aug 2018

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 Jun 2023

0.114 · max 0.273 mg/l as N · 8

Fluoride

1 station · latest Jun 2025

0.3 · max 0.54 mg/L · 7

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 TX1780003 — 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.