It then turns south and passes alongside the grounds of Escot House before flowing through Fairmile where it is crossed by the A30 until it joins the River Otter at Cadhay near Ottery St Mary.

The thirty-six year record shows that the catchment of 34 square kilometres (13 sq mi) to the gauging station yielded an average flow of 0.44 cubic metres per second (16 cu ft/s).

[6] The catchment upstream of the station has an average annual rainfall of 921 millimetres (36.3 in) and a maximum altitude of 283 metres (928 ft) at North Hill.

This is the middle band in the five-part framework scale, which ranges from high, good, and moderate, through to poor and finally bad.

[4] Due to a number of factors, such as the loss of their natural habitat and predation by the non-native American mink (Neovison vison), water voles (Arvicola amphibius) were considered extinct in Devon’s rivers by 2000.