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Water system · PWSID TX0570038

CITY OF COCKRELL HILL

DALLAS, TX · ~3,820 people served

Check your exact address → DALLAS overview
77
Good
PurityRadar safety score

PWSID

TX0570038

State

Texas

City

DALLAS

Population served

3,820

Primary source

SWP

Score history

▼ 23 points — the score moved from 100 to 77 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 77

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

PFOA

Perfluorooctanoic acid

5.1 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFOS

Perfluorooctanesulfonic acid

4.1 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFHxS

Perfluorohexanesulfonic acid

3.1 ppt

limit 10 ppt

Below EPA limit

PFBA

7.4 ppt

limit —

No federal limit

PFPeA

5.5 ppt

limit —

No federal limit

PFHxA

5.2 ppt

limit —

No federal limit

PFHpA

4.4 ppt

limit —

No federal limit

PFBS

3.5 ppt

limit —

No federal limit

Violations & enforcement

26

Violations on record

0

Unaddressed

14

Health-based

71

Enforcement actions

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

Monitoring · Lead & Copper Rule began Aug 2025 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2008 Resolved
Other · EPA contaminant 7500 began Oct 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2008 Resolved
Other · EPA contaminant 7500 began Jan 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2007 Resolved
Other · EPA contaminant 7500 began Mar 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2005 Resolved

Recent enforcement actions

  • State action · SIF Nov 2025
  • State action · SOX Oct 2025
  • State action · SIA Oct 2025
  • State action · SIE Oct 2025
  • State action · SOX Apr 2015
  • State action · SIF Apr 2013
  • State action · SIE Mar 2013
  • State action · SIA Mar 2013

This profile is built from EPA public records for system TX0570038 — 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.