Permits for water company discharges from Combined Sewer Overflows (CSO)

Apply for a new permit to discharge from a Combined Sewer Overflow (CSO)

How to change an existing permit to discharge from a Combined Sewer Overflow (CSO)

Find out how to transfer your existing permit to somebody else

Find out how to give up (surrender) your permit

If you need advice before you make an application for a permit please use our pre-application advice service

Fees and Charges

Planned activity	Fee
New permit application	£6,416
Variation - Substantial	£5,134
Variation – normal	£3,209
Variation – minor	£964
Variation – administrative	£374
Transfer the permit	£374
Surrender the permit	£374
If we’re unable to duly make the application we’ll retain	£643
If you withdraw your application after it’s been duly made we’ll retain	£6,416

Habitats Assessments fee

If your discharge is near a recognised European habitat site we will need to carry out a Habitats Regulations Assessment (HRA) as part of assessing your permit application. This will require payment of an additional fee of £3,209

For more information on when these assessments may be required please visait ‘Habitat Regulations Assessment for your Environmental Permit’

Environmental Risk Assessments fee

If your discharge into surface water contains hazardous chemicals and elements we may need to complete an Environmental Risk Assessment as part of assessing your permit application. This will require payment of an additional fee of £3,209

For more information on these hazardous chemicals and elements and when these assessments may be needed please see our webpage ‘Environmental Risk Assessments for water discharges ’

Annual fee

There will be an ongoing annual charge to cover our costs of maintaining and reviewing your permit, ensuring that you comply with the permit conditions and monitoring the water body that you discharge into.

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