§ 13-6. Unusual circumstances.

In all cases where:

(1) the amount of water from any particular property which is being discharged into the City's sanitary facilities cannot be reasonably determined under any of the provisions of this subtitle; or

(2) unusual or extraordinary circumstances or conditions exist in connection with the discharge of water into the City's sanitary facilities and which are not covered by the provisions of this subtitle,

the Director of Public Works shall have the power and authority to determine the amount of water being discharged into the City's sanitary facilities under the facts and circumstances in each case and the charges imposed under this subtitle shall be calculated and based upon the amount of water being discharged into the City's sanitary facilities as determined by the Director of Public Works as aforesaid.