KNOXVILLE WATER WORKS

KNOXVILLE, IA · ~8,400 people served

Check your exact address → KNOXVILLE overview

100

Excellent

PurityRadar safety score

PWSID

IA6342036

State

Iowa

City

KNOXVILLE

Population served

8,400

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

Lithium

130,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 1996. Official EPA record →

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

Recent enforcement actions

State action · SOX Jun 1996
State action · SFJ Apr 1993
State action · SFJ Apr 1993
State action · SIE Apr 1993
State action · SIE Apr 1993
State action · SIF Jan 1993
State action · SIF Jan 1993
State action · SFJ Nov 1992

This profile is built from EPA public records for system IA6342036 — 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.