Dr Catherine Bell - Change in Responsibilities

UNITED UTILITIES GROUP PLC DR CATHERINE BELL - CHANGE IN RESPONSIBILITIES In accordance with Listing Rule 9.6.11, United Utilities Group PLC reports the appointment of Dr Catherine Bell to the Remuneration Committee with effect from 1 March 2011. __________________________________________________________________________ Further information can be obtained from Jane Gilmore, Deputy Company Secretary 44 1 925 237052 - United Utilities Group's ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade over the counter under the Trading Symbol "UUGRY".