Holding(s) in Company

Pennon Group PLC
06 June 2006







PENNON GROUP PLC



FOR IMMEDIATE RELEASE



HOLDING IN COMPANY





Pennon Group Plc has received notification (by fax received today) that
Lansdowne Partners Limited Partnership hold an interest as at 2 June 2006 in
9,361,595 Ordinary Shares of 122 1/10p each in the Company, representing 7.89% of
the issued share capital.




6 June 2006



www.pennon-group.co.uk



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