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Water pollution

Find the correct organisation for reporting water pollution in Westminster.

Published: 21 December 2020

Last updated: 15 July 2022

If you find water pollution in our borough, please see the correct organisation responsible for the quality of drinking water and water in rivers, lakes, pools, spas and fountains.

Rivers and lakes

The Environment Agency is responsible for 'controlled' water such as rivers and lakes. 

Drinking water

Thames Water is usually responsible for drinking water.  

It is regulated by the Drinking Water Inspectorate (water quality) and Ofwat (economics).  

Some areas have a private supply separate from Thames Water. Check your water bills if you're not sure. 

Pools and spas

Water in spas and pools are sampled and monitored by the Westminster City Council Health and Safety Team. The team also monitors water quality in fountains, parks and in wet cooling towers.