Water companies will spend £180 million over the coming 12 months to reduce the number of spills from combined sewer overflows. Work will include using artificial intelligence systems to manage flows during periods of heavy rain as well as adding monitoring to sewer networks to identify blockages before they cause environmental harm. Plans outlined by Anglian, Severn Trent, Southern, United Utilities and Wessex to plough £180 million into reducing the number of spills from their outlets adds to previously announced work by Northumbrian and Yorkshire.