Holding(s) in Company

Pennon Group PLC
23 November 2006



PENNON GROUP PLC



FOR IMMEDIATE RELEASE



HOLDING IN COMPANY




Pennon Group Plc has received notification (by fax dated 22 November 2006) that
Lansdowne Partners Limited Partnership, on behalf of client funds that it
manages, hold an interest in 20,803,647 Ordinary Shares of 40.7p each in the
Company.







23 November 2006



www.pennon-group.co.uk



End transmission


                      This information is provided by RNS
            The company news service from the London Stock Exchange