(A) No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
(1) Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
(2) Any waters or wastes 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 sewage treatment plant including but not limited to cyanides in the excess of two mg/l as CN in the wastes as discharged to the public sewer;
(3) Any waters or wastes having a pH lower that 5.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewage works;
(4) Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage facilities such as but not limited to ashes, 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; and
(5) Any waters or wastes having:
(a) A five-day BOD greater than 300 parts per million by weight;
(b) Containing more than 350 parts per million by weight of suspended solids;
(c) Having an average daily flow greater than 2% of the average sewage flow of the municipality; or
(d) A chlorine requirement greater than demanded by normal sewage as evaluated by the municipality’s consulting engineer shall be subject to the review of the Superintendent.
(B) 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;
(3) Control the quantities and rates of discharge of such waters or wastes; or
(4) Reduce the chlorine requirement to conform with normal sewage. Plans, specifications and 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 said approvals are obtained in writing.
(Prior Code, § 3-233)