Holding(s) in Company

Pennon Group PLC
22 November 2006

PENNON GROUP PLC



FOR IMMEDIATE RELEASE


HOLDING IN COMPANY



Pennon Group Plc has received notification (by fax dated 22 November 2006) that
on 21 November 2006 Standard Life Investments held an interest in 13,709,553
Ordinary shares of 40.7p each in Pennon Group Plc.




22 November 2006


www.pennon-group.co.uk


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