South West Water (SWB) Reservoir Levels

Some water companies calculate the capacity of reservoirs differently than others. The capacity can mean the usable volume of the reservoir or the overall volume that can be held in the reservoir including water below the water table. In this dataset: Percentage of Capacity is based on Net Storage (the usable volume of water between the reservoir’s minimum operating level and its maximum operating level). Current Level is reported in meters below Top Water Level (the maximum designed water level a reservoir can safely hold under normal operating conditions). This dataset must not be used to determine the implementation of low supply or high supply measures such as hose pipe bans being put in place or removed. Please await guidance from your water supplier regarding any changes required to your usage of water. Particularly high or low reservoir levels may be considered normal or as expected given the season or recent rainfall level. This dataset does not remove the requirement for visual checks on reservoir levels that are in place for caving/pot holing safety.