Total Voting Rights

UNITED UTILITIES PLC                              

                              TOTAL VOTING RIGHTS                              

                         Month end - 31 December 2007                          

In accordance with the Disclosure and Transparency Rule 5.6.1 United Utilities
PLC hereby notify the market that on 31 December 2007 the total number of
voting rights in the company is 880,686,335 and the total shares in issue are
880,686,335. No shares are held in Treasury.

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Notification of major interests in shares should be emailed to 
[e-mail] and faxed to 01925 237073.

Further information can be obtained from Paul Davies, Deputy Company Secretary
+ 44 1 925 237051.

United Utilities' 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 "UUPLY".