Transaction in Own Shares

Pennon Group PLC
01 August 2007

Pennon Group Plc

1 August 2007


Transaction in Own Shares


Pennon Group Plc announces that it has today purchased through Merrill Lynch
International 5,412 ordinary shares at a price of 609.2946 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 2,336,303
ordinary shares in treasury and a total of 352,827,971 ordinary shares will be
in issue (excluding shares to be held in treasury).




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