Drinking water alert statistics
All figures below are computed directly from the published Watereport alert database at page load. Last computed: .
91
Active alerts
5
New in last 7 days
336
New in last 30 days
1000
Published alerts total
Most common event types
| Event type | Alerts |
|---|---|
| Notice | 886 |
| Microbiological contamination | 742 |
| Boil water advisory | 689 |
| Limit value exceeded | 574 |
| infrastructure | 503 |
| Chemical contamination | 443 |
Countries with the most alerts
| Country | Active | Total |
|---|---|---|
| 🇺🇸 USA | 20 | 338 |
| 🇩🇪 Germany | 14 | 146 |
| 🇵🇱 Poland | 19 | 125 |
| 🇨🇦 Canada | 5 | 118 |
| 🇫🇷 France | 10 | 87 |
| 🇦🇹 Austria | 4 | 37 |
| 🇨🇿 Czechia | 4 | 33 |
| 🇧🇪 Belgium | 9 | 27 |
| 🇦🇺 Australia | 3 | 21 |
| 🇨🇠Switzerland | 2 | 20 |
| 🇮🇪 Ireland | 1 | 19 |
| 🇬🇧 United Kingdom | 0 | 17 |
| 🇳🇱 Netherlands | 0 | 10 |
| 🇱🇺 Luxembourg | 0 | 2 |
Method: counts include every published alert in the Watereport database; an alert counts as active while its status is active. Time windows use the first-seen timestamp of each alert. Coverage depends on what authorities, utilities and local media publish; see the methodology page. Data collection starts 2026-08-09.