R 325.11006 Rated capacity of complete treatment system.

Rule 1006. (1) The department shall establish the rated capacity of new or existing complete treatment systems. (2) The department shall notify the public water supply of its determination of rated capacity on the permit for a new complete treatment system or on the permit for an existing complete treatment system which undergoes alterations which affect rated capacity. (3) The rated capacity of the complete treatment system is the smallest of the following rated capacities for each element or unit of the system: (a) Intake. The rated capacity of the intake is the lesser of the intake capacity at the 100 year drought elevation or the intake capacity at the time of the lowest recorded elevation of surface water at the point of intake. (b) Raw water supply. The rated capacity of the raw water supply is the firm capacity of raw water pumping units or the total flow from a system supplying raw water by gravity under minimum source water elevation conditions. (c) Treatment processes. The rated capacity of treatment processes including coagulation, precipitation, sedimentation, and filtration is the established maximum allowable treatment rate. Where less than 4 filters are provided, the rated capacity of the filters is the maximum allowable treatment rate with the largest filter removed from service. (d) Finished water supply. The rated capacity of the finished water supply to the distribution system or storage is the firm capacity of pumping systems or the total flow from a system supplying finished water by gravity under the limiting head condition.