# Legionella — Drinking water contaminant limits by regulator

For Legionella, regulator is European Union (Directive 2020/2184); limit is < 1 000; unit is CFU/l; limit type is Parametric value, recorded from its source on 2026-08-06.

- **Contaminant:** Legionella _(verified: appears in the quote below)_
- **Regulator:** European Union (Directive 2020/2184) _(our reading, not quoted from the source)_
- **Limit:** < 1 000 _(verified: appears in the quote below)_
- **Unit:** CFU/l _(verified: appears in the quote below)_
- **Limit type:** Parametric value _(our reading, not quoted from the source)_

## What the source says

> Legionella | < 1 000 | CFU/l

## Source

- https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184

Last verified: 2026-08-06. Review by: 2027-08-06.
Part of [Drinking water contaminant limits by regulator](https://referencesource.org/drinking-water-contaminant-limits/).