Director/PDMR Shareholding

UNITED UTILITIES GROUP PLC                           

                      DIRECTORS' AND PDMR'S SHAREHOLDINGS                      

                  NOTIONAL AND ACTUAL DIVIDEND REINVESTMENTS                   

                                11 AUGUST 2008                                 

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 interim dividend of 31.47 pence per share paid on 8
August 2008, the number of additional shares granted has been calculated using
the closing share price on 8 August 2008 of 693.5 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 8 September 2006 - Performance period 1 April 2006 to 31 March 2009

Name of person            Original    Cumulative Shares added     Balance
discharging managerial                balance on for dividend     carried
responsibilities            no. of         which       paid 8     forward
                          Ordinary      notional  August 2008            
                            shares dividend paid                         
                           awarded                                       
                                                                         
Philip Green                82,249        93,420        4,239      97,659
                                                                         
Martin Bradbury             17,308        19,657          892      20,549
                                                                         
Charlie Cornish             40,237        45,700        2,073      47,773
                                                                         
Clive Elphick               16,643        18,902          857      19,759
                                                                         
Gaynor Kenyon               11,539        13,104          594      13,698
                                                                         
Tim Weller                  47,338        53,767        2,439      56,206
                                                                         
Totals                     215,314       244,550       11,094     255,644

Awarded12 June 2007 - Performance period1 April 2007 to 31 March 2010

Name of person           Original    Cumulative  Shares added     Balance
discharging                no. of    balance on  for dividend     carried
managerial               Ordinary         which paid 8 August     forward
responsibilities           shares      notional          2008            
                          awarded dividend paid                          
                                                                         
Philip Green               92,359        98,620         4,475     103,095
                                                                         
Alison Clarke              19,934        21,285           965      22,250
                                                                         
Charlie Cornish            45,183        48,245         2,189      50,434
                                                                         
Clive Elphick              14,951        15,964           724      16,688
                                                                         
Gaynor Kenyon              11,961        12,771           579      13,350
                                                                         
Tim Weller                 53,157        56,760         2,575      59,335
                                                                         
Totals                    284,057       253,645        11,507     265,152

Awarded 14 December 2007 - Performance period 1 April 2007 to 31 March 2010

Name of person           Original    Cumulative  Shares added     Balance
discharging                no. of    balance on  for dividend     carried
managerial               Ordinary         which paid 8 August     forward
responsibilities           shares      notional          2008            
                          awarded dividend paid                          
                                                                         
Tom Keevil                 21,811        23,289         1,056      24,345

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 8 August     forward
responsibilities           shares      notional          2008            
                          awarded dividend paid                          
                                                                         
Philip Green            75,121       75,121             3,408      78,529
                                                                         
Tim Weller              43,185       43,185             1,959      45,144
                                                                         
Charlie Cornish         36,355       36,355             1,649      38,004
                                                                         
Clive Elphick           15,064       15,064               683      15,747
                                                                         
Gaynor Kenyon           11,872       11,872               538      12,410
                                                                         
Alison Clarke           19,368       19,368               878      20,246
                                                                         
Tom Keevil              20,803       20,803               944      21,747
                                                                         
Matthew Wright          15,602       15,602               707      16,309
                                                                         
Ian McAulay             15,602       15,602               707      16,309
                                                                         
Totals                  252,972      252,972           11,473     264,445

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 31.47 pence per share paid on 8
August 2008, the number of additional shares granted has been calculated using
the closing share price on 8 August 2008 of 693.5 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 30 July 2007 - Performance period 1 April 2007 to 31 March 2010

Name of director/          No. of    Cumulative  Shares added     Balance
senior manager           Ordinary    balance on  for dividend     carried
discharging                shares         which paid 8 August     forward
managerial                awarded      notional          2008            
responsibilities                  dividend paid                          
                                                                         
Charlie Cornish            14,606        15,596           707      16,303
                                                                         
Philip Green               51,624        55,123         2,501      57,624
                                                                         
Clive Elphick               8,264         8,823           400       9,223
                                                                         
Gaynor Kenyon               4,858         5,187           235       5,422
                                                                         
Tim Weller                 22,015        23,507         1,066      24,573
                                                                         
Totals                    101,367       108,236         4,909     113,145

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 8 August     forward
managerial                awarded      notional          2008            
responsibilities                  dividend paid                          
                                                                         
Charlie Cornish         18,475       18,475               838      19,313
                                                                         
Philip Green            65,755       65,755             2,983      68,738
                                                                         
Clive Elphick            5,126        5,126               232       5,358
                                                                         
Gaynor Kenyon            5,305        5,305               240       5,545
                                                                         
Tim Weller              41,929       41,929             1,902      43,831
                                                                         
Alison Clarke           8,273*       8,273*               375       8,648
                                                                         
Tom Keevil              3,082*       3,082*               139       3,221
                                                                         
Totals                  147,945      147,945            6,709     154,654

*In an announcement made on 6 August 2008 regarding the award of matching
shares to, among others, Alison Clarke and Tom Keevil, their awards were
inadvertently transposed. The above shows the correct number of matching shares
awarded then.

Retention Awards

As part of the terms of Philip Green's recruitment, the company established a
matched share incentive scheme for him as sole participant by which the company
undertook to match (on 16 January 2007) an investment of 100,000 shares made by
Mr Green himself upon his appointment provided he remains with the group until
12 February 2011. The award is subject to a dividend enhancement mechanism by
which further shares are notionally added to the award on each intervening
dividend payment date.

As part of the terms of Tim Weller's recruitment, the company established a
matched share incentive scheme for him as sole participant by which the company
undertook to match an investment of 39,000 shares made by Mr Weller himself
upon his appointment (on 1 July 2006) provided he remains with the group up to
and beyond the implementation of the next regulatory reviews. The award is
subject to a dividend enhancement mechanism by which further shares are
notionally added to the award on each intervening dividend payment date.

In order to facilitate the retention of Charlie Cornish up to and beyond the
next regulatory reviews the company established a special long-term incentive
scheme for him as sole participant. Under the scheme an award equal to his
annual salary was granted to him in the form of an option over 47,027 shares on
16 March 2007. The award is subject to performance conditions and is also
subject to a dividend enhancement mechanism by which further shares are
notionally added to the award on each intervening dividend payment date.

The dividend shares shown below have been notionally added to and form part of
the awards. In respect of the interim dividend of 31.47 pence per share paid on
8 August 2008, the number of additional shares granted has been calculated
using the closing share price on 8 August 2008 of 693.5 pence per share.

                                               Philip      Tim      Charlie
                                                Green    Weller     Cornish
                                                                           
Original award ordinary shares                100,000    39,000      47,027
                                                                           
Shares added re dividend paid 25 August         4,398     1,715       2,068
2006                                                                       
                                                                           
Shares added re dividend paid 12 Feb 2007       1,973       769         927
                                                                           
Shares added re dividend paid 24 August         4,757     1,855       2,237
2007                                                                       
                                                                           
Shares added re dividend paid 11 February       2,455       957       1,154
2008                                                                       
                                                                           
Share added re dividend paid 8 August 2008      5,154     2,010       2,423
                                                                           
Totals carried forward                        118,737    46,306      55,836

Share Incentive Plan

Notification was been received on 11 August 2008 that the Trustee, Equiniti
Trustees Limited, purchased ordinary shares of 5p each on behalf of the
following directors/PDMRs on 8 August 2008, as dividend reinvestment shares in
accordance with the rules of the Company's Inland Revenue approved share
incentive plan. The shares were purchased at a price of 691.0p pence per share.

        Director              Balance held    No. of Shares Revised balance
                                  prior to        purchased                
                                  dividend                                 
                                  purchase                                 
                                                                           
Philip Green                           693               40             733
                                                                           
Gaynor Kenyon                          380               22             402
                                                                           
Clive Elphick                        1,539               89           1,628
                                                                           
Alison Clarke                          163                8             171
                                                                           
Tom Keevil                             255               14             269

__________________________________________________________________________

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

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United Utilities Group's ordinary 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".