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Regulating the Industry
You are here: Ofwat > Regulating the Industry > Past information on company performance (June returns) > June return 2011
Quality regulators data 2010
Purpose of the quality regulators' information
The information received from the Drinking Water Inspectorate (DWI) and the Environment Agency enables us to monitor companies' performance on water quality and environmental obligations both now, and over time. This information relates to performance of companies' assets as well as meeting new environmental and drinking water quality standards.. See MD 109 'Compliance with quality obligations – monitoring company performance' for further information.
The data from the Drinking Water Inspectorate can be found on their website at http://dwi.defra.gov.uk/about/annual-report/2010/index.htm
The data received from the Environment Agency is published below.
| Company | Environment Agency data |
|---|---|
| Anglian Water Services Ltd | XLSX - 220Kb |
| Dŵr Cymru (Welsh Water) | XLSX - 194Kb |
| Northumbrian Water Ltd | XLSX - 154Kb |
| Severn Trent Water Ltd | XLSX - 162Kb |
| South West Water Ltd | XLSX - 206Kb |
| Southern Water Services Ltd | XLSX - 217Kb |
| Thames Water Utilities Ltd | XLSX - 118Kb |
| United Utilities Water Plc | XLSX - 179Kb |
| Wessex Water Services Ltd | XLSX - 148Kb |
| Yorkshire Water Services Ltd | XLSX - 143Kb |
| Bathing water data - all water and sewerage companies | XLSX - 35Kb |

