§ 51.53 DETERMINATION OF SURCHARGES.
   In order that the rates and charges may be justly and equitably adjusted to the service rendered to users, the city shall base its charges not only on the volume, but also on strength and character of the stronger-than-normal domestic sewage and shall require the user to determine the strength and content of all sewage and wastes discharge, either directly or indirectly into the sanitary sewage system, in such manner and by such method as the city may deem practicable in the light of the conditions and attending circumstances of the case, in order to determine the proper charge. The user shall furnish a central sampling point available to the city at all times.
   (A)   Normal sewage domestic waste strength should not exceed a biochemical oxygen demand of 300 milligrams per liter of fluid or suspended solids in excess of 300 milligrams per liter of fluid. Additional charges for treating stronger-than-normal domestic waste shall be made on the following basis:
      (1)   Rate surcharge based upon suspended solids. There shall be an additional charge per pound of suspended solids received in excess of 300 milligrams per liter of fluid:
 
Excessive Strength Surcharge: Rates Per Pound in Excess of 300 mg/l
 
Present
Phase I
Phase II
Phase III
SS
$0.30
$0.31
$0.32
$0.33
 
      (2)   Rate surcharge based upon BOD. There shall be an additional charge per pound of biochemical oxygen demand for BOD received in excess of 300 milligrams per liter of fluid.
 
Present
Phase I
Phase II
Phase III
BOD
$0.30
$0.31
$0.32
$0.33
 
   (B)   The determination of suspended solids and five-day biochemical oxygen demand contained in the waste shall be in accordance with the latest copy of "Standards Methods for the Examination of Water, Sewage and Industrial Wastes", as written by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation, and in conformance with "Guidelines Establishing Test Procedures for Analysis of Pollutants", Regulation CFR Part 136, published in the Federal Register on October 16, 1973.
   (C)   Phase I rates and charges as herein set forth become effective on the first full billing period occurring after the adoption of this Ordinance. Phase II rates and charges become effective on the first full billing period on or after January 1, 2021 and thereafter. Phase III rates and charges shall become effective on the first full billing period on or after January 1, 2022 and thereafter.
(Ord. 82-5, passed 4-16-82; Am. Ord. 87-1, passed 2-17-87; Am. Ord. 2001-02, passed 4-23-01; Am. Ord. 2004-10, passed 11-8-04; Am. Ord. 2006-18, passed 11-13-06; Am. Ord. 2016-03, passed 3-14-16; Am. Ord. 2019-09, passed 10-14-19; Am. Ord. 2020-01, passed 2-10-20)