The following measures shall be used to determine sewer charges provided by Section 925.05, except with respect to subsections (c) and (d) thereof, upon all premises served by the sewerage system:
(a) On all premises using water exclusively supplied by the City, water consumption on such premises shall be measured by a water meter acceptable to the City Manager. (Ord. 1979-11. Passed 1-30-79.)
(b) On premises using water supplied either in whole or in part from sources other than the water works system of the City, the City Manager shall require the owner or other interested party to either elect to accept a charge according to the standard sewage flow guidelines as promulgated by the Ohio Environmental Protection Agency, or to install meters satisfactory to the City Manager to the extent necessary to measure all such supplies of water, and the quantity of water consumed on such premises shall be deemed to be the aggregate amount disclosed by such meters. (Ord. 1979-34. Passed 3-13-79.)
(c) In the event it can be shown to the satisfaction of the City Manager, with respect to any premises, that a portion of the water from any source consumed on such premises does not and cannot enter the sewerage system, then in each such case the owner or other interested party may, at his expense, install and maintain separate metering devices to the extent necessary to demonstrate to the satisfaction of the City Manager the portion of the water consumed on the premises which is discharged into the sewerage system, which portion shall constitute the basis for measuring the sewer charge for such premises under Section 925.05. (Ord. 1979-11. Passed 1-30-79.)