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Information Letters


The Inspectorate from time to time issues Information Letters to all water companies giving advice, guidance or requiring information.

The following link is a list of currently relevant Information Letters and those deemed to be of significant interest.


Details of all other Information Letters issued from 1990 to the present can be found by selecting options below for DWI Information Letters:

These Information Letters are not accessible via this web site and are available in hardcopy only via the DWI address given at the foot of this page.


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Drinking Water Inspectorate

55 Whitehall, London, SW1A 2EY
Telephone : 020 7270 3370


Department for Environment,
Food & Rural Affairs (DEFRA)

The National Assembly for Wales /
Cynulliad Cenedlaethol Cymru


Website last updated
08 July 2008

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