Director/PDMR Shareholding

UNITED UTILITIES GROUP PLC

DIRECTORS' AND PDMR INTERESTS IN SHARES

United Utilities Group PLC ("the Company") announces that it receivednotification on 19 February 2013 that the Trustee, Equiniti Share Plan TrusteesLimited, purchased ordinary shares of 5p each on behalf of the followingdirectors and persons discharging managerial responsibility on 18 February2013, to be held in accordance with the rules of the Company's HMRC approvedshare incentive plan. The shares were purchased at a price of 723.48 pence pershare.Director/PDMR No. of Shares purchasedNeil Colman 21Gary Dixon 21Steve Fraser 21Simon Gardiner 20Russ Houlden 20Gaynor Kenyon 21Steve Mogford 21Janice Smethurst 22

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Further information can be obtained from Jane Gilmore, Deputy Company Secretary44 1 925 237052

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United Utilities Group's ordinary shares trade on the London Stock Exchange andits ADRs, each equal to two ordinary shares, trade over the counter under theTrading Symbol "UUGRY".