Severn Trent Plc has been informed that Ordinary Shares of 97 17/19p, under the
Severn Trent Plc Share Incentive Plan, have been purchased and allocated as
follows:-

Name                       Status           No. of Shares held
                                                 in trust     
                                                              
A J Ballance               Director                         47
                                                              
M J Kane                   Director                         47
                                                              
M J E McKeon               Director                         47
                                                              
A P Smith                  Director                         47
                                                              
A P Wray                   Director                         47
                                                              
F B Smith                  PDMR                             47

The date of the allocation was 3 August 2009 and the shares were purchased at a
price of £9.685. The shares will be held in trust for a minimum period of 3
years.

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

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