Surface water drainage

Our wastewater standing charge for properties connected to the public sewers includes an amount for disposing of surface water.


Surface water drainage charges

Complete our rebate form  

Surface water is rainwater which runs off roofs and paved areas and also includes water that drains to the public sewer from activities such as car washing.

The surface water drainage charge covers the cost of taking away and treating this water and includes water that flows through gutters or which simply runs into the road and ends up in our sewer.

If the surface water from your property enters a public sewer then you will have to pay the charge

This is currently £25.90 a year for domestic customers.

Most properties are connected to a public sewer, particularly houses built in the last 40 years.

However, there is not always a connection to the public sewers for the surface water, because the water from the roof and run-off from driveways may go into a soakaway.

A soakaway is where the run-off rainwater is piped to a large underground pit filled with gravel within the boundary of the property, normally 10 to 15 feet away from the house foundations.



If the surface water from your property goes to a soakaway and none of it enters the public sewers, then you can claim a rebate backdated to 1 April 2015.

To claim a rebate complete our online form or alternatively call 0330 303 1266 (calls charged at local rate) and record your details.

Once your claim has been agreed you will automatically receive the rebate each year.

Read more about rebates on Ofwat's website


Highway drainage charges

Rainwater from highways drains into the public sewers and then becomes our responsibility. Properties connected to the public sewer are liable for the highway drainage charge.

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