Holding(s) in Company

Pennon Group PLC
19 October 2006



PENNON GROUP PLC

FOR IMMEDIATE RELEASE

HOLDING IN COMPANY


Pennon Group Plc has received notification (by fax today) that Lansdowne
Partners Limited Partnership, on behalf of client funds that it manages, holds
an interest in 24,991,980 Ordinary Shares of 40.7p each in the Company.







19 October 2006


www.pennon-group.co.uk


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