Calculation of the Assessment

(1) For metered end suppliers, the Assessment shall be calculated by multiplying the Withdrawal Amount by the Assessment Rate. 21.05: continued (2) For unmetered end suppliers the Assessment shall be calculated as follows: (a) for unmetered end suppliers which serve a population of 900 persons or more, by multiplying the Estimated Withdrawal Amount by the Assessment Rate; (b) for unmetered end suppliers which serve a population of less than 900 persons, the Assessment shall equal a flat rate set by the Department, in consultation with the advisory committee, for the following categories based on the population served by the system. 1. Suppliers serving 25-100 persons 2. Suppliers serving 101-200 persons 3. Suppliers serving 201-899 persons (3) The Department shall encourage universal master metering in order to accurately quantify the amount ofwater which passes through each distribution system and to fairlyapportionthe assessment among users.