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The sewerage charge you pay includes the cost of removing and treating surface water.
This is the water that falls on your roof or the hard paved surfaces of your property such as a driveway or patio.
The surface water is taken away via a surface water sewer or a combined sewer.
If you are unsure whether you are connected to the public sewer, you can check where the rainwater from your gutters discharges.
If there is a sewer nearby you may find evidence of this, such as a heavy duty manhole cover. If this is the case, it is likely that surface water from your property drains directly to the sewer.
If you can prove that the majority of the rainwater from your property doesn't drain to a public sewer you could be entitled to a reduction in your sewerage bill.
To claim, you must prove that the majority of rainfall:
Your claim will be unsuccessful if:
It is free to make a claim and you can do this by completing our form.
Apply for surface water drainage allowance
* whichever is most recent