UNITED UTILITIES GROUP PLC TOTAL VOTING RIGHTS Month end - 30 September 2008

In accordance with the Disclosure and Transparency Rule 5.6.1 United Utilities Group PLC hereby notify the market that on 30 September 2008 the total number of voting rights in the company is 681,456,159 and the total shares in issue are 681,456,159. No shares are held in Treasury.

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Notification of major interests in shares should be emailed to Secretariat@uuplc.co.uk and faxed to 01925 237073.

Further information can be obtained from Jane Gilmore, Deputy Company Secretary + 44 1 925 237052.

United Utilities Group's ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade over the counter under the Trading Symbol "UUGRY".