The Drinking Water Inspectorate (DWI) has updated its list of prosecutions taken against water companies since 1995. Prosecutions have taken place under the Water Supply (Water Quality) Regulations. Analysis of the table shows that in the seven year period from 1995 – 2001 there were 32 successful prosecutions of water companies compared to only 9 for the period 2002 – 2011. Dwr Cymru / Welsh Water has the largest number of these convictions with 9 prosecutions. The DWI advise that ‘as a a result of the prosecutions, the water companies have taken steps to improve their operations …’ and that there are ‘cases pending’ In August 2012 Southern Water were fined £15,000 at West Hampshire Magistrates’ Court for supplying discoloured water at Chandlers Ford, Hampshire in March 2011.

Note.
The Drinking Water Inspectorate (DWI) was formed in 1990 to provide independent reassurance that water supplies in England and Wales are safe and drinking water quality is acceptable to consumers. The Drinking Water Report for the 2011 was published on the 12th July 2012. The full report is available on the Drinking Water Inspectorate website http://dwi.defra.gov.uk/press-media/incidents-and-prosecutions/prosecution-record.pdf