Skip to main content

Sewage: Floods

Volume 459: debated on Monday 30 April 2007

To ask the Secretary of State for Environment, Food and Rural Affairs how many incidents of sewer flooding where raw sewage has contaminated homes and property occurred in (a) England, (b) each English region and (c) each county in the last three years. (134376)

[holding answer 27 April 2007]: Ofwat is the economic regulator of the water and sewerage industry in England and Wales. It collects information from companies on internal and external sewer flooding each year by water and sewerage company area.

The following table sets out the number of incidents of internal and external sewer flooding from public sewerage systems by company area in the last three years. The internal and external incidents include flooding to both household and non-household properties. Ofwat does not collect information showing the split of incidents between household and non-household properties. External incidents also include highway flooding incidents and incidents to open public spaces.

2003-042004-052005-06

Company

Internal

External

Internal

External

Internal

External

Anglian Water

127

3,137

172

2,621

188

1,178

Northumbrian

407

1,895

277

2,085

1,347

3,894

Severn Trent (who also supply parts of Wales)

686

4,912

808

3,285

725

3,477

South West

123

155

144

1,118

187

1,323

Southern

263

5,102

308

5,019

444

5,237

Thames

505

3,106

1,340

3,745

1,103

3,778

United Utilities

822

3,355

1,661

2,943

734

4,056

Wessex

93

3,309

137

3,244

96

1,643

Yorkshire

439

418

469

1,064

306

888

Total

3,465

25,389

5,316

25,124

5,130

25,474