Determining withdrawal capacity

Determining withdrawal capacity. (1) The withdrawal capacity for a property is the total capacity in gallons per day from all water sources on the property. (2) The withdrawal capacity for a public water supply is the total capacity from all water sources in the system. (3) The capacity of individual water sources shall be one of the following: (a) For flowing sources, the maximum flow rate. (b) For pumped sources, the maximum hydraulic capacity of the most restrictive component of the water supply system. If the most restrictive component is a pump, the maximum capacity is determined based on the pump curve at the lowest system pressure setting.