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Water system · PWSID TX0910003

CITY OF DENISON

DENISON, TX · ~27,500 people served

Check your exact address → DENISON overview
100
Excellent
PurityRadar safety score

PWSID

TX0910003

State

Texas

City

DENISON

Population served

27,500

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

Lithium

20,100 ppt

limit —

No federal limit

Violations & enforcement

16

Violations on record

0

Unaddressed

4

Health-based

51

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Aug 2023 Resolved
Other · EPA contaminant 7500 began Feb 2021 Resolved
Monitoring · Lead & Copper Rule began Oct 2018 Resolved
Other · EPA contaminant 7500 began Feb 2016 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2014 Resolved
Other · EPA contaminant 7500 began Jun 2013 Resolved
Treatment technique · EPA contaminant 0300 health-based began May 2013 Resolved
Other · EPA contaminant 7500 began Apr 2013 Resolved
Monitoring & reporting · EPA contaminant 3014 began Oct 2012 Resolved
Other · EPA contaminant 7500 began Mar 2012 Resolved

Recent enforcement actions

  • State action · SIF Jun 2024
  • State action · SOX Oct 2023
  • State action · SIE Sep 2023
  • State action · SIA Sep 2023
  • State action · SIF Sep 2023
  • State action · SOX Sep 2023
  • State action · SOX Apr 2021
  • State action · SIA Apr 2021

This profile is built from EPA public records for system TX0910003 — 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.