TapGraded

Knoxville, TN water quality

Knoxville, TN is served by 8 public water systems, serving 601,849 people combined. Across those systems, we count 0 health-based violations in the last 5 years. The worst Tap Grade among them is A.

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Frequently asked questions

Is Knoxville, TN tap water safe to drink?

8 public water systems serve Knoxville, TN, with 0 health-based violations in the last 5 years across them. The worst Tap Grade among them is A.

Does Knoxville's water have lead in it?

The most recent 90th-percentile lead sample is 3.6 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in Knoxville's water?

These systems were tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.

Source: EPA SDWIS/ECHO · Data as of 2026Q2