Over and above the rates and charges established by Section 911.05, there may be established in special instances and upon special agreement between the Municipality and the owner of any premises served by the system such additional charges for industrial wastes of unusual strength or composition which are accepted by the Municipality for treatment as may be determined to be fair and equitable. Similarly, rates in lieu of or supplemental to those established by Section 911.05 may also be established by special agreement in any case not clearly defined in such section or where satisfactory provision shall have been made for direct measurement of the quality of sewage discharges to the system. Each such special agreement and the charges established thereby shall not become effective until ratified by the Public Works Director and Mayor. (Ord. 73-2018. Passed 7-10-18.)