The calculation formula is: water supply guarantee rate = 100% × (daily water supply capacity - maximum daily water supply capacity) / daily supply capacity in water.
The guarantee rate of the water source is the guarantee rate of the water supply. The calculation formula is water supply guarantee rate = 100% × (daily water supply capacity - maximum daily water supply capacity) / daily water. supply capacity. Among them, daily water supply capacity refers to the maximum amount of water that the water supply system can supply every day under normal operation conditions; maximum daily water supply volume refers to the maximum daily quantity of water that can be supplied in the event of an outage; or an emergency roomence occurs in the water supply system.