(1) BOD - 200 milligrams per liter;
(2) Suspended solids - 240 milligrams per liter; and
(3) Phosphorous - 10 milligrams per liter.
(B) Applicable concentrations shall be based on average concentrations, weighted in proportion to volume of flow, determined during each billing period by the most practicable method possible. Should the average concentration of any constituent exceed the normal concentration provided in this section, a user charge - extra strength surcharge may be collected by the city as subsequently outlined in §§ 51.095 through 51.105. The calculation of these high strength charges shall be by the city after consultation with the user. The concentration sampling and testing shall be performed by the city.
(1981 Code, § 51.085) (Ord. 6405-90, passed 9-10-1990)