Hafren Dyfrdwy Raw Water Storage - Reservoir Levels 2025

This dataset provides the measurements of raw water storage levels in reservoirs crucial for public water supply, The reservoirs included in this dataset are natural bodies of water that have been dammed to store untreated water. 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 weather. This dataset does not remove the requirement for visual checks on reservoir levels that are in place for caving/pot holing safety. Some water companies calculate the capacity of reservoirs differently than others. The capacity can mean the useable volume of the reservoir or the overall volume that can be held in the reservoir including water below the water table.本数据集提供了关乎公共供水安全的水库原水存储量实测数据。本数据集收录的水库均为经筑坝拦截以储存未经处理原水的天然水体。本数据集不得用于判定供水量不足或过剩相关管控措施（如启用或解除软管用水禁令）的实施情况，请务必等待所属供水公司发布的用水调整相关官方指引。结合季节或近期天气情况，水库水位的异常偏高或偏低可能属于正常或预期范围内的情形。本数据集并未免除为保障探洞（坑洞探险）安全而开展水库水位目视检查的既定要求。部分水务公司对水库库容的计算标准存在差异：库容既可指水库的可用容积，也可指水库可容纳的总容积（含地下水位以下的水体）。