No person(s) shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
(a) Any storm water, surface water, ground water, roof runoff, subsurface drainage (including interior and exterior foundation drains), uncontaminated cooling water or unpolluted industrial process waters;
(b) Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
(c) Any waters containing toxic or poisonous solids, liquids or gases in sufficient quantity either singly or by interaction with other wastes, to injure or interfere with any waste treatment process, constitute a hazard to humans or animals, create a public nuisance or create any hazard in the receiving waters of the wastewater treatment plant;
(d) Any waters or waste having a pH lower than 5.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the wastewater works;
(e) Solid or viscous substances in quantities or of such size as to be capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the wastewater facilities such as, but not limited to, ashes, bones, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers and the like, either whole or ground by garbage grinders.
(f) “Disposable wipes”, “flushable wipes”, “baby wipes” and similar named products, other than standard toilet paper;
(g) Any waters or wastes having:
(1) A five-day biochemical oxygen demand greater than 300 parts per million by weight;
(2) More than 350 parts per million by weight of suspended solids; or
(3) An average daily flow greater than two percent of the average sewage flow of the city, shall be subject to the review of the Superintendent.
(h) Where necessary in the opinion of the Superintendent, the owner shall provide at his or her expense, such preliminary treatment as may be necessary to:
(1) Reduce the biochemical oxygen demand to 300 parts per million by weight;
(2) Reduce the suspended solids to 350 parts per million by weight; or
(3) Control the quantities and rates of discharge of such waters or wastes.
(i) Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Superintendent and no construction of such facilities shall be commenced until the approvals are obtained in writing; and
(j) Pretreatment or flow equalizing facilities shall be maintained continuously in satisfactory and effective operation by the owner at his or her expense.
(Ord. 786, passed 2-1-1977; Ord. 1647, passed 5-5-2015)