The Beane has been divided into 12 sections and each section is patrolled monthly by a volunteer warden. The warden’s role is to keep an eye the condition of the river. They report on the state of the flow and the state of the channel. They report on the abundance of the natural waterside plants and invasive non-native species such as Himalayan Balsam, Giant Hogweed and Japanese Knotweed. They report on sightings of animals associated with a river, birds, mammals, fish and larger invertebrates. With the help of some mink rafts, the wardens keep an eye out for the presence of mink. If evidence of their presence is found efforts can then be directed to control the mink which are very damaging to small mammals and water fowl.