Director/PDMR Shareholding

UNITED UTILITIES GROUP PLC                           

                      DIRECTORS' AND PDMR'S SHAREHOLDINGS                      

                  NOTIONAL AND ACTUAL DIVIDEND REINVESTMENTS                   

                                 3 AUGUST 2010                                 

Performance Share Plan

Under the rules of the performance share plan, awards are subject to uplift for
notional dividends made or paid during the performance period. Accordingly, the
dividend shares shown below have been notionally added to and form part of the
award. In respect of the final dividend of 23.13 pence per share paid on 2
August 2010, the number of additional shares granted has been calculated using
the closing share price on 2 August 2010 of 590.5 pence per share. The figures
reflect the maximum number of shares over which the option might be exercised.
The actual number will depend upon the extent to which the established
performance conditions are satisfied over the performance period. The awards
are issued for nil consideration and may be exercised at nil cost to the
participant.

Awarded 5 August 2008 - Performance period 1 April 2008 to 31 March 2011

Name of person           Original    Cumulative  Shares added     Balance
discharging                no. of    balance on  for dividend     carried
managerial               Ordinary         which paid 2 August     forward
responsibilities           shares      notional          2010            
                          awarded dividend paid                          
                                                                         
Philip Green               75,121        85,670         3,355      89,025
                                                                         
Charlie Cornish            36,355        41,459         1,623      43,082
                                                                         
Gaynor Kenyon              11,872        13,536           530      14,066
                                                                         
Alison Clarke              19,368        22,086           865      22,951
                                                                         
Tom Keevil                 20,803        23,723           929      24,652
                                                                         
Matthew Wright             15,602        17,791           696      18,487

Awarded 23 June 2009 - Performance period 1 April 2009 to 31 March 2012

Name of person            Original    Cumulative Shares added     Balance
discharging managerial                balance on for dividend     carried
responsibilities            no. of         which       paid 2     forward
                          Ordinary      notional  August 2010            
                            shares dividend paid                         
                           awarded                                       
                                                                         
Philip Green               111,164       119,022        4,662     123,684
                                                                         
Charlie Cornish             53,771        57,571        2,255      59,826
                                                                         
Gaynor Kenyon               16,467        17,630          690      18,320
                                                                         
Tom Keevil                  28,855        30,894        1,210      32,104
                                                                         
Alison Clarke               26,865        28,763        1,126      29,889
                                                                         
Matthew Wright              23,631        25,301          991      26,292
                                                                         
Steven Fraser               19,900        21,305          834      22,139

Awarded 13 July 2010 - Performance period 1 April 2010 to 31 March 2013

  Name of director/   Original no. Shares added    Balance  
   senior manager     of Ordinary  for dividend    carried  
     discharging         shares    paid 2 August   forward  
     managerial         awarded        2010                 
  responsibilities                                          
                                                            
Philip Green               100,739         3,945     104,684
                                                            
Tom Keevil                  26,149         1,024      27,173
                                                            
Alison Clarke               24,346           953      25,299
                                                            
Paul Worthington            22,091           865      22,956
                                                            
Gaynor Kenyon               14,923           584      15,507
                                                            
Matthew Wright              21,415           838      22,253
                                                            
Steven Fraser               18,034           706      18,740

Matching Share Plan

Under the rules of the matching share plan, awards are subject to uplift for
notional dividends made or paid during the performance period. Accordingly, the
dividend shares shown below have been notionally added to and form part of the
award. In respect of the final dividend of 23.13 pence per share paid on 2
August 2010, the number of additional shares granted has been calculated using
the closing share price on 2 August 2010 of 590.5 pence per share. The figures
reflect the maximum number of shares over which the option might be exercised.
The actual number will depend upon the extent to which the established
performance conditions are satisfied over the performance period. The awards
are issued for nil consideration and may be exercised at nil cost to the
participant.

Awarded 5 August 2008 Performance period 1 April 2008 to 31 March 2011

Name of director/          No. of    Cumulative  Shares added     Balance
senior manager           Ordinary    balance on  for dividend     carried
discharging                shares         which paid 2 August     forward
managerial                awarded      notional          2010            
responsibilities                  dividend paid                          
                                                                         
Charlie Cornish         18,475           21,068           825      21,893
                                                                         
Philip Green            65,755           74,988         2,937      77,925
                                                                         
Gaynor Kenyon            5,305            6,047           236       6,283
                                                                         
Alison Clarke            8,273            9,433           369       9,802
                                                                         
Tom Keevil               3,082            3,512           137       3,649

Awarded 23 June 2009 Performance period 1 April 2009 to 31 March 2012

Name of director/            No. of    Cumulative Shares added      Balance
senior manager             Ordinary    balance on for dividend      carried
discharging managerial       shares         which       paid 2      forward
responsibilities            awarded      notional  August 2010             
                                    dividend paid                          
                                                                           
Philip Green              33,956           36,356        1,424       37,780
                                                                           
Alison Clarke             4,073             4,360          170        4,530
                                                                           
Matthew Wright            2,595             2,778          108        2,886

Awarded 13 July 2010 Performance period 1 April 2010 to 31 March 2013

Name of director/          No. of  Shares added       Balance
senior manager           Ordinary  for dividend       carried
discharging                shares paid 2 August       forward
managerial                awarded          2010              
responsibilities                                             
                                                             
Tom Keevil              13,943              546        14,489
                                                             
Matthew Wright          10,669              417        11,086

Deferred Share Award Plan

Under the rules of the deferred share award scheme (`the scheme') awards are
subject to uplift for notional dividends made or paid during the vesting
period. Accordingly the dividend shares shown below have been notionally added
to and form part of the award. In respect of the final dividend of 23.13 pence
per share paid on 2 August 2010, the number of additional shares awarded has
been calculated using the closing share price on 2 August 2010 of 590.5 pence
per share. Under the terms of the scheme, awards will (which are structured as
options to acquire shares in the company with a zero exercise price) be
satisfied by using shares purchased in the market or by payment of a cash
amount equal to the market value, on the date of exercise, of the shares
(including dividend equivalent shares) held. Newly issued or treasury shares
cannot be used to satisfy awards under this plan.  No directors of the company
can participate in the scheme. The awards will normally become capable of
exercise after the end of the vesting period and must be exercised within 90
days thereafter. The ability to exercise an award is not subject to satisfying
a performance target.

Vesting period - 30 January 2009 - 5 August 2011

Name of director/           No. of    Cumulative      Shares     Balance
senior manager            Ordinary    balance on   added for     carried
discharging managerial      shares         which    dividend     forward
responsibilities           awarded      notional      paid 2            
                                   dividend paid August 2010            
                                                                        
Steven Fraser                6,767         7,382         289       7,671
                                                                        
Matthew Wright               8,555         9,331         365       9,696

Vesting period - 23 June 2009 - 23 June 2012

Name of director/          No. of    Cumulative  Shares added     Balance
senior manager           Ordinary    balance on  for dividend     carried
discharging                shares         which paid 2 August     forward
managerial                awarded      notional          2010            
responsibilities                  dividend paid                          
                                                                         
Steven Fraser               6,766         7,244           283       7,527

Share Incentive Plan

Notification was been received today that the Trustee, Equiniti Share Plan
Trustees Limited, purchased ordinary shares of 5p each on behalf of the
following directors/PDMRs on 2 August 2010, as dividend reinvestment shares in
accordance with the rules of the Company's HMRC approved share incentive plan.
The shares were purchased at a price of 589.5 pence per share.

        Director              Balance held    No. of Shares Revised balance
                                  prior to        purchased                
                                  dividend                                 
                                  purchase                                 
                                                                           
Alison Clarke                          883               32             915
                                                                           
Steven Fraser                        1,385               52           1,437
                                                                           
Philip Green                         1,496               56           1,552
                                                                           
Tom Keevil                             989               36           1,025
                                                                           
Gaynor Kenyon                        1,134               42           1,176

__________________________________________________________________________

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

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