Current reservoir levels South West Water monitor the levels of our reservoirs to ensure optimum operation. Find out more here. The current water levels of some of our reservoirs are shown in the table below. Week ending: 1 May 2022 Reservoir Current level (%) Current storage (Ml) Net capacity (Ml) Stithians 86 4,275 4,967 Argal 96 1,250 1,302 College 97 238 246 Crowdy 81 825 1,022 Colliford 75 21,432 28,540 Siblyback 91 2,901 3,182 Upper Tamar 88 1,301 1,477 Roadford 94 32,463 34,500 Burrator 74 3,130 4,210 Wistlandpound 73 1,133 1,550 Meldon 91 2,745 3,020 Wimbleball 93 19,891 21,320 Fernworthy 97 1,716 1,765 Kennick, Tottiford and Trenchford 81 1,637 2,011 Avon 93 1,217 1,313 Venford 98 724 740