Ofwat would like to place cookies on your computer to help us make this website better. To find out more about the cookies, please see our privacy statement.
You must tick the 'I accept cookies from this site' box to accept.
I accept cookies from this site.
Shortcut keys for this site
Quick links

About Ofwat
Household consumers
Non-household consumers
Sewerage charges
You are here: Ofwat > Non-household consumers > Your water bill > How non-household customers are charged > Sewerage charges
There are four types of activity that attract sewerage charges. These are for collecting and treating
- foul sewage
- surface water drainage, which occurs when rainwater falls on a property and drains away
- highway drainage, which occurs when water runs off roads and pavements
- trade effluent
If you are able to demonstrate that you do not receive any of these services apart from highway drainage you should be entitled to lower charges.
Charges are generally based on the cost of collecting and treating the different types of sewage. The amount of sewage that is generated by a property may be either measured or estimated. For some companies, the different components are combined for billing purposes.
Further information
Find out more about:
- foul sewage charges
- sewerage charges for large users
- surface water drainage and highways drainage charges

