All water furnished to customers shall be measured through meters furnished by the City and installed by the City unless special written permission is obtained from the Administrator in accord with the following:
1. Independent Units. Each house, building, or individually owned unit shall be individually metered unless special written permission is obtained from the Administrator.
2. Multiple Units.
A. Multiple-family dwellings of two or more units or multi-unit commercial and industrial premises shall have each unit metered and billed individually, if individual curb stop shutoff valves are available for each unit.
B. Multiple-family dwelling or multiple-tenant commercial or industrial buildings that do not have separate curb stop shutoff valves and separate meters shall be metered and billed to the property owners, who is responsible for payment of the water used.