R 325.11203 Study of water supply requirements for type I public water supply; proposal for compliance.

Rule 1203. (1) A type I public water supply shall conduct a study to determine the quantity of water supply needed for the waterworks system and shall propose a method of compliance in accordance with R 325.11204. (2) The study required by subrule (1) of this rule shall be based on 5-year and 20-year projections of water use by the public water supply. The study shall be updated every 5 years unless the owner demonstrates that water use projections are stable and this requirement is waived by the department. (3) At a minimum, the information presented in this study shall include all of the following: (a) Basic planning data, including current population, number of service connections, and equivalent residential units. (b) Sufficient water production and consumption data to identify trends for both 5-year and 20-year planning periods, including the following elements: (i) The present and projected average daily demand. (ii) The present and projected maximum daily demand. (iii) The present and projected maximum hourly demand. (iv) The present and projected peak instantaneous demand for systems using hydropneumatic storage. (v) The present and projected fire flow demand. (vi) The basis of demand projections. (vii) Monthly and annual production totals for each source, including water purchased from another public water supply. (viii) Annual usage totals for water supplied to other public water supplies. (ix) Annual usage totals for each customer class as determined by the public water supply. (c) A water shortage response plan for emergencies. (4) Permits shall not be issued by the department to a public water supply unless an approved study of water supply quantity requirements is available.