United Utilities to sell interest in Manila Water

United Utilities Group PLC

12 November 2009

                UNITED UTILITIES SELLS ITS ECONOMIC INTEREST IN                
                             MANILA WATER COMPANY                              

United Utilities today announces that it has agreed to sell its 11.67 per cent
economic interest in Manila Water Company (MWC) to Ayala Corporation and
Philwater Holdings Company Inc, both existing shareholders of MWC, for a cash
consideration of USD73 million. On completion of the transaction, expected by
the end of 2009, United Utilities will reinvest approximately USD1.2 million in
new preference shares in Philwater Holdings Company Inc.

United Utilities contacts:

Philip Green, Chief Executive                            [phone]    
                                                                               
Tim Weller, Chief Financial Officer                      [phone]    
                                                                               
Gaynor Kenyon, Communications Director                   [phone]    
                                                                               
Darren Jameson, Head of Investor Relations               [phone]    
                                                                               
James Bradley / Tom Murray, Tulchan Communications       [phone]