Reading: Saitaisui
Also known as LWL (Low Water Level)
The minimum water level is the water level at the top of the sediment, assuming that the sediment capacity of the dam is horizontal. Water above this level can be used for irrigation and other purposes. Conversely, water below this level cannot be used, which means that in most cases there is no water intake below this level.
Each dam has its own set of operating rules. The minimum water level is determined by the elevation of each dam, and the rules state that the water level must not be lowered below this level unless there is a specific reason, such as inspection or repair.
Comment