UNITED UTILITIES PLC                              

                               16 FEBRUARY 2005                                

We received a notification today, from J P Morgan Chase & Co notifying of its
interest as at 14 February 2005 in 31,065,105 `A' shares in United Utilities
PLC amounting to 10.05% of the issued `A' share capital, an increase of 863,646
`A' shares.

Registered Holder                                   Account     Holding
                                                Designation            
                                                                       
JPMorgan Securities Ltd                                      27,006,408
                                                                       
JPMorgan Fleming Asset Management (UK)                        3,846,985
Limited                                                                
                                                                       
JPMorgan Investment Management Inc                              209,400
                                                                       
JPMorgan International Bank Limited                               2,312
                                                                       
Total                                                        31,065,105

                                      -0-                                      

United Utilities' ordinary and `A' shares trade on the London Stock Exchange
and its ADRs, each equal to two ordinary shares, trade on the New York Stock
Exchange under the Trading Symbol `UU'.



END
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