Treasury Stock

Pennon Group PLC
12 September 2007



PENNON GROUP PLC

TRANSFER OF SHARES OUT OF TREASURY (LR12.6.4)


Pursuant to LR12.6.4 Pennon Group announces the following transfers of treasury
shares for the purposes of the Company's employees' sharesave scheme:


Date of       Number of ordinary       Transfer price        Total number of       Number of ordinary
              shares of nominal value  (exercise price       treasury shares held  shares of nominal value
transfer      40.7p transferred out of pursuant to the       following transfer    40.7p in issue less the
              treasury                 sharesave contract)                         total number of treasury
                                                                                   shares held following
                                                                                   transfer

12/9/07       10,452                   Between 153.66p and   5,170,100             349,994,174
                                       200.33p



12 September 2007

www.pennon-group.co.uk


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