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白石水库位于辽宁省大凌河干流上，是一座以防洪、灌溉和供水为主，结合工农业用水发电的控制性骨干工程．大凌河是多沙河流，为了综合考虑白石水库兴利、防洪与排沙之间的矛盾，达到长期保持有效库容，提高水库近、远期效益的目的，从水库寿命和任务两方面确定排沙比，再由排沙比选择运用方式，运用方式选择为以蓄洪为主，遇20年一遇以上洪水时，尽量降低库水位直至死水位，集中排沙，20年一遇以下的中、小洪水则蓄洪运用，并利用弃水适时打开底孔，排泄异重流泥沙或高浓度浑水．死水位定为108．00m．
Located in the main stream of the Daling River in Liaoning Province, Whitehead Reservoir is a controlled backbone project that combines flood control, irrigation and water supply with power generation from industry and agriculture. Daling River is the Dasha River. In order to comprehensively consider the contradiction between the benefits and benefits of Bai Shishui Reservoir, flood control and sediment discharge, and to achieve the purpose of maintaining the effective storage capacity for a long time and improving the near and long-term benefits of the reservoir, Sandy, Sandy than by the use of sediment selection, the use of options for the main flood storage, in case of more than 20 years of floods, try to reduce the reservoir water level until the dead water level, concentrated sediment discharge, Small floods are flood storage and use of waste water at the right time to open the bottom hole, excretion of heavy flow of sediment or high concentration of muddy water. Dead water level is set at 108.00m.