Supplementary prospectus relating to the EMTN Programme

07 December 2007

The following supplementary prospectus has been approved by the UK Listing Authority and is available for viewing

RNS Number:4017J
United Utilities PLC
06 December 2007

Publication of Supplementary Prospectus

The following supplementary prospectus has been approved by the UK Listing Authority and is available for viewing:

Supplementary Prospectus dated 6 December 2007 (the "Supplement") to the Offering Circular dated 20 November 2007 (the "Offering Circular"), relating to the multi-issuer €7,000,000,000 Euro Medium Term Note Programme (the "Programme") of United Utilities PLC and United Utilities Water PLC. Each of United Utilities PLC and United Utilities Water PLC is an issuer under the Programme.

To view the full document, please paste the following URL into the address bar of your browser.

www.rns-pdf.londonstockexchange.com/rns/4017j_-2007-12-6.pdf

The documents incorporated by reference into the Supplement are available for inspection at the Document Viewing Facility of the UK Listing Authority.

For further information, please contact Tom Fallon, Treasurer, United Utilities, on + 44 1925 237064.

United Utilities' ordinary shares trade on the London Stock Exchange.