Current reservoir levels South West Water monitor the levels of our reservoirs to ensure their optimum operation. Find out more here. The current water levels of some of our reservoirs are shown in the table below. Week ending: 17 January 2020 Reservoir Current level (%) Current storage (Ml) Net capacity (Ml) Stithians 100 4,967 4,967 Argal 100 1,302 1,302 College 100 246 246 Crowdy 100 1,022 1,022 Colliford 82 23,315 28,540 Siblyback 100 3,182 3,182 Upper Tamar 100 1,477 1,477 Roadford 92 31,589 34,500 Burrator 96 4,029 4,210 Wistlandpound 100 1,550 1,550 Meldon 98 2,971 3,020 Wimbleball 100 21,320 21,320 Fernworthy 100 1,765 1,765 Kennick, Tottiford and Trenchford 100 2,011 2,011 Avon 100 1,313 1,313 Venford 99 736 740