Result of AGM Poll

UNITED UTILITIES GROUP PLC                           

                     ANNUAL GENERAL MEETING - POLL RESULT                      

At the annual general meeting held on 22 July 2011 at the Midland Hotel,
Manchester, the following resolutions were duly passed and the result of the
poll is shown below. At the record date for the meeting the total number of
voting rights in the company stood at 681,768,848 and the total ordinary shares
in issue were 681,768,848.

No. Resolution              Votes For     % Votes Against       %         Votes
                                                                       withheld
                         Representing        Representing                      
                               shares              shares          Representing
                                                                         shares
                                                                               
 1  Receiving the report 347,577,555  99.98 76,838        0.02    654,437      
    and accounts                                                               
                                                                               
 2  Declaring a final    347,626,214  99.99 41,022        0.01    631,005      
    dividend                                                                   
                                                                               
 3  Approving the        311,465,516  91.76 27,986,401    8.24    8,855,226    
    directors'                                                                 
    remuneration report                                                        
                                                                               
 4  Reappointing Dr John 315,368,833  96.00 13,132,207    4.00    19,807,221   
    McAdam                                                                     
                                                                               
 5  Electing Steve       307,640,576  93.42 21,668,193    6.58    18,999,692   
    Mogford                                                                    
                                                                               
 6  Electing Russ        327,619,862  99.49 1,690,301     0.51    18,998,332   
    Houlden                                                                    
                                                                               
 7  Reappointing Dr      326,098,541  99.02 3,227,232     0.98    18,982,654   
    Catherine Bell                                                             
                                                                               
 8  Reappointing Paul    326,640,879  99.18 2,686,490     0.82    18,970,804   
    Heiden                                                                     
                                                                               
 9  Reappointing David   322,681,912  98.75 4,081,181     1.25    21,545,368   
    Jones                                                                      
                                                                               
10  Reappointing Nick    327,617,937  99.47 1,733,787     0.53    18,956,737   
    Salmon                                                                     
                                                                               
11  Reappointing the     343,140,699  98.75 4,359,352     1.25    808,410      
    auditor                                                                    
                                                                               
12  Remunerating the     343,706,876  98.91 3,799,801     1.09    801,559      
    auditor                                                                    
                                                                               
13  Authorising the      338,868,355  98.75 4,284,335     1.25    5,155,771    
    directors to allot                                                         
    shares                                                                     
                                                                               
14  Disapplying          343,148,715  98.77 4,275,970     1.23    881,845      
    statutory                                                                  
    pre-emption rights                                                         
                                                                               
15  Authorising market   347,024,655  99.84 568,630       0.16    715,210      
    purchases of its own                                                       
    shares by the                                                              
    company                                                                    
                                                                               
16  Notice period for    322,128,924  92.68 25,457,406    7.32    722,165      
    general meetings                                                           
                                                                               
17  Amending the         346,522,195  99.76 834,968       0.24    949,655      
    articles of                                                                
    association                                                                
                                                                               
18  Authorising          340,270,973  98.00 6,943,673     2.00    1,093,761    
    political donations                                                        

                                      -0-                                      

Jane Gilmore, Deputy Secretary 01925 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".