The sewage put through the industrial sewer line shall be treated or controlled to an extent and by means of such facilities that when discharged into the Belle River they shall:
(A) Contain no freely settling or floating solids.
(B) Contain no substances of processing waste origin when the flow in the Belle River upstream from the point of discharge of process wastes is less than two cubic feet per second.
(C) Contain not more than 75 pounds daily of oxygen consuming substances as measured by the five-day biochemical oxygen demand test for each cubic foot per second of flow in the Belle River in excess of two cubic feet per second during the period of May 15 to September 1 of each year, as measured upstream from the point of discharge of process wastes.
(D) Contain no more than 95 pounds daily of oxygen consuming substances as measured by the five day biochemical oxygen demand test for each cubic foot per second flow in the Belle River in excess of two cubic foot per second during the period September 1 to May 15 of the following year, as measured upstream from the point of discharge of process waste.
(Ord. 12.3, passed 2-4-64)