Southern Water fined £7.1 million for illegal raw sewage dumping off Kent coast

Herz — World Desk · 17 July 2026 at 18:10 · 30s summary · 3 min read

Southern Water, a UK water utility company, was fined £7,127,083 on July 16-17, 2026, by Canterbury Crown Court for illegally dumping raw sewage off the Kent coast between 2019 and 2021, according to The Guardian.

What we know

In April 2026, Southern Water pleaded guilty to 13 charges before Medway Magistrates Court: 9 for discharging untreated sewage, 3 for failing to notify authorities within 24 hours of a discharge—a requirement of its environmental permit—and 1 for operating the Margate station without a backup pump from July 27, 2019, to October 4, 2020.

Judge Mr Justice Johnson found that Southern Water had accumulated 174 prior convictions—every year from 1999 to 2016, and again in April 2026. He described this record as an "exceptionally grave aggravating factor" and highlighted repeated failures in staff training, infrastructure investment, and equipment maintenance.

Timeline of incidents

1. July 20, 2019
   The Margate pumping station discharged sewage intermittently from approximately 2 a.m. to nearly midnight. The Environment Agency, the body responsible for receiving discharge notifications, was not alerted until more than 32 hours after the first discharge.
2. July 27, 2019 – October 4, 2020
   The Margate pumping station operated without a backup pump for over a year.
3. February 16, 2021
   The Broadstairs station discharged untreated, unscreened raw sewage into the sea for nearly five hours due to a computer system failure. Solid waste scattered along the coastline. Authorities were not notified until the discharge had ended. The beach was closed from February 17-19 for cleanup.
4. June 16-17, 2021
   Fresh discharges at the Margate and Broadstairs stations led Thanet Council to close 11 swimming areas in Kent for one week.
5. Southern Water pleaded guilty to 13 charges before Medway Magistrates Court.