Director/PDMR Shareholding

Pennon Group PLC
21 September 2006



PENNON GROUP PLC

FOR IMMEDIATE RELEASE

DIRECTORS' SHAREHOLDINGS (PURSUANT TO DR3.1.4R(1))

Pennon Group Plc (the Company) announces that it received notification on

20 September 2006 in accordance with DR3.1.2R and Section 324 (as extended by
Section 328) of the Companies Act 1985 that pursuant to the rules of the Pennon
Group Restricted Share Plan the Company's three Executive Directors have
obtained a conditional interest in Ordinary shares of 40.7p of the Company as
follows:

                                            Number of
                                            Ordinary shares

            Mr C I J H Drummond       -    41,363
            Mr D J Dupont             -    41,363
            Mr C Loughlin             -    36,099


The shares were awarded on 14 September 2006 at a price of 498.625p per share
and represent the maximum number of shares to which each of the Directors would
become entitled on 14 September 2009 under the Plan if the relevant performance
criterion relating to Total Shareholder Return was met in full.  The shares are
held in trust by Pennon Share Plans (Guernsey) Limited, the Plan Trustee.


21 September 2006


www.pennon-group.co.uk

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