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Water system · PWSID TX0570007

CITY OF DUNCANVILLE

DUNCANVILLE, TX · ~39,413 people served

Check your exact address → DUNCANVILLE overview
90
Excellent
PurityRadar safety score

PWSID

TX0570007

State

Texas

City

DUNCANVILLE

Population served

39,413

Primary source

SWP

Score history

▼ 10 points — the score moved from 100 to 90 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 90

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

PFOS

Perfluorooctanesulfonic acid

4.4 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFBA

7.7 ppt

limit —

No federal limit

PFPeA

6.5 ppt

limit —

No federal limit

PFHxA

6 ppt

limit —

No federal limit

PFBS

4.2 ppt

limit —

No federal limit

Violations & enforcement

12

Violations on record

0

Unaddressed

5

Health-based

24

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2018. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2013 Resolved
Other · EPA contaminant 7500 began Jul 2008 Resolved
Other · EPA contaminant 7500 began May 2008 Resolved
Other · EPA contaminant 7500 began May 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2007 Resolved
Other · EPA contaminant 7500 began Jul 2006 Resolved
Other · EPA contaminant 7500 began Jun 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2006 Resolved

Recent enforcement actions

  • State action · SOX Feb 2018
  • State action · SIA Feb 2018
  • State action · SOX Sep 2014
  • State action · SIA Jun 2008
  • State action · SIE Jun 2008
  • State action · SIA Apr 2008
  • State action · SIE Apr 2008
  • State action · SIE Apr 2008

This profile is built from EPA public records for system TX0570007 — 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.