TROY

TROY, IL · ~16,962 people served

Check your exact address → TROY overview

100

Excellent

PurityRadar safety score

PWSID

IL1191000

State

Illinois

City

TROY

Population served

16,962

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

Lithium

10,900 ppt

limit —

No federal limit

PFBS

3.9 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Oct 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jul 2007 Resolved

Treatment technique · Lead & Copper Rule health-based began Dec 1992 Resolved

Recent enforcement actions

State action · SIA Oct 2025
State action · SIE Oct 2025
State action · SOX Feb 2008
State action · SIA Jan 2008
State action · SOX Feb 1994
State action · SOX Feb 1994
State action · SIA Sep 1981
State action · SIA Sep 1981

This profile is built from EPA public records for system IL1191000 — 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.