Transaction in Own Shares

Pennon Group PLC
08 August 2007




Pennon Group Plc


8 August 2007


Transaction in Own Shares


Pennon Group Plc announces that it has today purchased through Merrill Lynch
International 91,804 ordinary shares at a price of 605.652717 pence per share.

The purchased shares will all be held in treasury.  Following the above purchase
and non-cancellation of such equity shares, Pennon Group Plc will hold 2,606,671
ordinary shares in treasury and a total of 352,557,603 ordinary shares will be
in issue (excluding shares to be held in treasury).




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