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Water Woes: Regulator Warned of Danger Before Outage
4 Dec, 2025
Summary
- Water regulator had previously warned of contamination risks at the facility.
- Tens of thousands faced water cutoffs and a boil notice in Tunbridge Wells.
- South East Water faced scrutiny over financial health and infrastructure upkeep.

Residents of Tunbridge Wells are grappling with a severe water contamination issue, leading to a boil water notice affecting tens of thousands. The crisis at the Pembury treatment works prompted an investigation by the Drinking Water Inspectorate (DWI), which had previously issued warnings regarding potential health dangers from bacteria and pesticides. The company faces scrutiny over its infrastructure maintenance and financial health.
The failure at the treatment center has caused widespread disruption, forcing schools, restaurants, and businesses to close. The DWI is investigating the root cause and ensuring preventative measures are implemented. South East Water, which had previously received a cash injection due to financial instability, could face legal action if negligence is proven.
This situation highlights broader concerns about aging water infrastructure across the UK. Similar incidents, like the cryptosporidium outbreak in Brixham last summer, underscore the challenges faced by water companies. The CEO of South East Water met with government officials to address the ongoing disruption and the unacceptable length of time taken to restore supply.