Southern Water chief and three ex-staff charged with fraud

A former chief executive of Southern Water and three other former employees will face criminal proceedings after a High Court ruling on Wednesday, July 22, 2026, cleared the way for a major fraud case to proceed. The four men are charged with conspiring to defraud environmental regulators by allegedly manipulating water quality tests to avoid millions of pounds in penalties.

The Environment Agency alleges that between January 2012 and December 2017, Matthew Wright, who was CEO from 2011 to 2016, and former colleagues Philip Barker, Clive Massey, and Mark Gregory conspired to implement "artificial no-flow events" at wastewater treatment works. This scheme allegedly manipulated the Operator Self-Monitoring (OSM) compliance regime, introduced in 2009, under which water companies conduct their own unannounced sampling and report results to the regulator.

According to the allegations, the men arranged for wastewater to be removed by tankers to create conditions where no sample could be taken during tests. Under the rules at the time, an insufficient flow was not recorded as a failure. The Environment Agency states that by Southern Water's own assessment, this allowed the company to...