Holding(s) in Company

Pennon Group PLC
17 March 2005

PENNON GROUP PLC


FOR IMMEDIATE RELEASE


HOLDING IN COMPANY




Pennon Group Plc yesterday received notification (by fax dated 16 March 2005)
that Lansdowne Partners Limited Partnership, on behalf of client funds that it
manages, holds an interest of 6,471,735 Ordinary shares of £1.11p each in Pennon
Group Plc.




17 March 2005

www.pennon-group.co.uk


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