Holding(s) in Company

Pennon Group PLC
16 February 2005



PENNON GROUP PLC


FOR IMMEDIATE RELEASE


HOLDING IN COMPANY


Pennon Group Plc has today received notification (by fax dated 15 February 2005)
that FMR Corp and its direct and indirect subsidiaries, and Fidelity
International Limited (FIL) and its direct and indirect subsidiaries, both being
non-beneficial holders, and Mr Edward C Johnson 3d, a principal shareholder of
FMR Corp and Fidelity International Limited, hold an interest of 4,895,577
Ordinary shares of £1.11p each in Pennon Group Plc representing 3.83% of the
issued share capital of the Company.


16 February 2005


www.pennon-group.co.uk


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