98-84 New Chapt 913 Streets - water into sewer system

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Section 913.06: USE OF THE }IUNICIPAL SEWERS a) No person shall discharge or cause to be discharged any storm water, surface water, groundwater, roof runoff, subsurface drainage, un- contaminated cooling water, or unpolluted industrial process waters to any sanitary sewer. b) Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as storm sewers, or to a natural outlet approved by the City Engineer. Industrial cooling water or unpolluted process waters shall be discharged, on approval of the City Engineer to a storm sewer or natural outlet. c) No surface water or ground water drainage system shall be connected to any public sewers without prior approval of the City Engineer. Such approval shall require the submittal of the drawings to define the piping plans, critical elevations, surface contours, where applicable, and details of piping and drainage appurtenances. d) No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers: 1) Any liquids, solids or.gases which by reason of their nature or quantity are., or may be, sufficient either alone or by interaction with other substances to cause fire or explo- sion or be injurious in any other way to the wastewater dis- posal system or to the operation of the system. At no time, shall two successive readings on an explosion hazard meter, at the point of discharge into the system or any point in the system, be more than five percent (5%) nor any single reading over ten percent (10%) of the Lower Explosive Limit (LEL) of the meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alchols, ketones, aldehydes, peroxides, chlor- ates, perchlorates, bromates, carbides, hydrides and sulfides. 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 wastewater 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, including but not limited to the following concentrations of materials in the wastes as received at the influent of the wastewater treatment plant; or any pollutant identified pursuant to Section 307 (a) of the Act: Copper 0.02 mg/1 Arsenic 0.01 mg/1 Zinc 0.04 mg/1 Cadmium 0.01 mg/1 Lead 0.1 mg/1 Mercury 0.0005 mg/1 Total Chromium 0.25 mg/1 Silver 0.0036 mg/1 Nickel 0.07 mg/1 Cyanide 0.03 mg/1 Chloroform 1.0 mg/1 Free Oil 5.0 mg/1 Total Phenolics 0.05 mg/1 pH 6.5-9.0 s.u. (7)