UK National · All 9 Companies

Discharge Rankings

Every UK water company CSO ranked by total discharge hours. Thames data from 2022; other companies accumulating from live monitoring.

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Thames Water rankings are complete from 2022. Other companies are building up episode history — discharge hours will grow as live monitoring data accumulates. For live discharge status across all 9 companies, use the national map.
Time period
Showing: Last 30 days
Sites
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Discharge hours
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Discharging now
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Period
Last 30 days
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Tallying up the damage…
Source: Thames Water EDM · Data from 2022
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