(a) Storm Sewers. Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated storm sewers, or to a natural outlet approved by the Engineer. The Engineer, in approving such natural outlet, shall consider their capacity, rate of flow and course. Industrial cooling water or unpolluted process waters may be discharged, upon approval of the Inspector and/or OEPA, to a storm sewer or natural outlet. The Inspector shall consider the kind, character and quantity of the water to be discharged as well as the availability of a storm sewer and the capacity, rate of flow and course of a natural outlet.
No person shall discharge or cause to be discharged any wastewater, garbage, leaves, grass, lawn sweepings or any other substance of any kind, except clear, unpolluted water, into any private or public storm sewer or natural outlet within the City.
Foundation tile shall be connected to a storm sewer, natural outlet or as otherwise approved by the Engineer. Where foundation tile are drained by gravity, the elevation of the tile at the building shall be sufficiently above the outlet to protect against backflow, to the satisfaction of the Inspector.
(b) Sanitary Sewers. Unpolluted water such as storm water, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water or uncontaminated industrial process waters shall not be discharged into any sanitary sewer. Raw untreated wastewater, including floor drainage, kitchen wastes and industrial wastes complying with the provisions of this Chapter, shall be discharged only into sanitary sewers.
No person or contractor working for the City constructing a sanitary sewer, building or house connection, shall leave same open, unsealed, or incomplete in such a fashion as to permit storm, roof, surface or subsurface waters to temporarily or permanently enter into such sewers.
(c) General Discharge Prohibitions. No person shall discharge or cause to be discharged in any public sanitary sewer any of the following described substances, materials, water or wastes:
(1) Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit (65.6 degrees Celsius), or which causes the influent temperature at the treatment plant to exceed 104 degrees Fahrenheit (40 degrees Celsius).
(2) Any waters or wastes containing petroleum oil, non-biodegradable cutting oil or products of mineral oil origin, if discharged in amounts that can pass through or cause interference.
(3) Any gasoline, benzene, naphtha, fuel oil, mineral oil or other flammable or explosive liquid, solid or gas.
(4) Any pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit (60 degrees Centigrade) using the test method specified in 40 CFR 261.21.
(5) Any waters or wastes that contain more than 5 mg/l of the following gases: H2S, SO2 or nitrous oxide.
(6) Any pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems.
(7) Any garbage that has not been properly comminuted or shredded.
(8) Any water or wastes containing substances that will solidify or become discernibly viscous at temperatures between 30 and 150 degrees F (-1 degrees and 65.6 degrees C), including but not limited to ashes, cinders, sand, mud, straw, shavings, metal, glass, latex, rags, hair and fleshing, entrails, lime-slurry, lime residues, beer or distillery slops, chemical residues, paint or ink residues, cannery waste bulk solids, or any other solids or viscous substance capable of causing obstruction of the flow of sewers, or any other interference with the proper operation of the sewage works.
(9) Any waters or wastes, acid or alkaline in reaction, having corrosive properties capable of causing damage or hazard to structures, equipment and personnel of the sewage works. Free acids and alkalies of such wastes shall be neutralized at all times, within a permissible range of pH, between 5.5 and 10.6.
(10) Any water or wastes containing toxic pollutants in sufficient concentration or quantity to interfere with any wastewater treatment process, constitute a hazard to humans, or animals, or create any hazard in the receiving waters of the wastewater treatment plant.
(11) Any discharge which inhibits or disrupts the POTW's operation or processes and results in the POTW violating its NPDES permit or requirements applicable to the POTW's chosen sludge use or disposal method.
(12) Wastewater containing pollutants in excess of applicable permit limitations as provided by Section 921.37
.
(13) Any waters or wastes containing in excess of 0.5 mg/l total identifiable chlorinated hydrocarbons.
(14) Any water or wastes containing the discharge of strong acid, iron pickling wastes, or concentrated plating solutions, whether neutralized or not.
(15) Any waters containing suspended solids of such character that unusual provisions, attention or expense is required to handle such materials in the sewage works.
(16) Any noxious or malodorous gas or substance, which either singly or by interaction with other wastes, is capable of creating a public nuisance or hazard to life or of preventing entry into sewers for their maintenance and repair.
(17) Any water or wastes which cause the effluent or any other product of the treatment process residues, sludge or scums to be unsuitable for disposal or reclamation and reuse, or interfere with the reclamation process, such as land-spreading.
(18) Any water or wastes which cause discoloration, or any other condition in the quality of the wastewater treatment plant effluent, such that receiving water quality requirements, established by law, cannot be met.
(19) Any radioactive waste except as approved by the Director.
(20) Any slugload, as defined in Section 921.01
(61.), including compatible pollutants, released in a single extraordinary discharge episode of such volume or strength to cause interference in the sewage works.
(21) Any water or waste which causes a detrimental environmental impact or a nuisance in the waters of the State, causes a condition unacceptable to any public authority having regulatory jurisdiction over the sewage works, or causes the quality of the wastewater treatment plant effluent to violate NPDES permit limitations. (See definition for "pass-through", Section 921.01
(41).)