Severn Trent Water was singled out a third time in Ofwat's report for being the one water company with a particularly high number of supply interruptions to customers. Severn Trent Water said it has already made "dramatic improvements" in the areas of concern highlighted by Ofwat. "On supply interruptions … we have focused our efforts into a major programme of improvements and this is on track to deliver significant reductions to these numbers," the company said.