CITY OF KATY

KATY, TX · ~25,253 people served

Check your exact address → KATY overview

100

Excellent

PurityRadar safety score

PWSID

TX1010017

State

Texas

City

KATY

Population served

25,253

Primary source

Groundwater

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

Lithium

19,200 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · EPA contaminant 3014 began Jun 2025 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2019 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

State action · SOX Nov 2025
State action · SIE Nov 2025
State action · SIA Nov 2025
State action · SIF Jun 2020
State action · SIE Jan 2020
State action · SIA Jan 2020
State action · SOX Jan 2020
State action · SOX Jun 1993

This profile is built from EPA public records for system TX1010017 — 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.