Section R. 325.11204 - Required capacity of waterworks systems; applicabilityRule 1204. A type I public water supply shall provide sufficient capacity in the waterworks system to meet the approved finished water supply requirements. That capacity may be 1 or any combination of the following:
(a) Rated capacity from an approved surface water supply or complete treatment system.(b) Firm capacity from an approved groundwater supply where firm capacity equals the flow with the largest producing well out of service.(c) The available capacity obtained under contract and capable of delivery from another approved public water supply.(d) Finished water storage capacity in excess of the established normal waterworks system requirements.Mich. Admin. Code R. 325.11204