Director/PDMR Shareholding

Northumbrian Water Group PLC
09 March 2007


                          Northumbrian Water Group plc
                                (the "Company")

                        Notification of PDMR's interests
                                      and
                          Dealings by employee trusts

The Company was informed on 8 March 2007 that Northumbrian Water Share Scheme
Trustees Limited (the "LTIP Trustee") of the NWG Long Term Incentive Plan (the
"Plan") had on 8 March 2007, transferred 28,848 ordinary 10 pence shares,
representing 0.006% of the Company's issued capital, at nil cost to Graham
Neave, a person discharging managerial responsibility ("PDMR") pursuant to the
rules of the Plan. The transfer of shares is pursuant to a conditional award of
shares made on 27 January 2004. Of these, 11,798 shares (0.002%) were sold to
meet tax liabilities, and the balance of 17,050 shares was transferred to Mrs S
Neave. Mr Neave's beneficial holding in the Company is now 17,050 shares,
representing 0.003% of the Company's issued share capital.

Following this transaction, the LTIP Trustee holds 716,917 shares, representing
0.138% of the Company's issued share capital.

The LTIP Trustee holds these shares in order to satisfy awards made under the
Company's LTIP, and so John Cuthbert and Chris Green, as executive directors of
the Company, and Ceri Jones and Graham Neave, as PDMRs, are potential
beneficiaries of these shares held by the LTIP Trustee.

In addition, the Company was advised on 9 March 2007 by the Trustee of the
Northumbrian Water Group plc Share Incentive Plan (the "SIP Trustee") that on 9
March 2007 it released 5,929 ordinary 10 pence shares on behalf of certain
participants of the Company's Share Incentive Plan.

Following this transaction the SIP Trustee holds a total of 1,740,662 shares
representing 0.34% of the share capital of the Company.

The following people John Cuthbert (Director), Chris Green (Director) and Ceri
Jones (PDMR) are beneficiaries along with other employees, and as such, each is
deemed to be interested in the shares held by the Trustee.

This notification is made in accordance with DTR3.1.4R(1).

Name of contact and telephone number for queries

Jayne Powell, Assistant Company Secretary
Tel: [phone]




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