No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water, sump pump discharge or unpolluted industrial process waters to any sanitary sewer.
No property owner shall cause or permit a sump pump, storm drain, curtain drain, gutter or leader, or any assembly or device to divert, direct, or channel stormwater or surface water into a sanitary sewer.
Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designed as combined sewers or storm sewers or to a natural outlet approved by the Superintendent. Industrial cooling water or unpolluted process waters may be discharged, on approval of the Superintendent, to a storm sewer or natural outlet. Cooling water discharge shall require a State Pollutant Discharge Elimination System permit.
No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
A. 
Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas.
B. 
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 sewage 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 excess of two milligrams per liter as CN in the wastes as discharged to the public sewer.
C. 
Any waters or wastes 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 sewage works.
D. 
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 works, 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, etc., either whole or ground by garbage grinders.
The following described substances, materials, waters or waste shall be limited in discharges to the municipal system to concentrations or quantities which will not harm either the sewers, wastewater treatment process or equipment, will have no adverse effect on the receiving stream or will not otherwise endanger lives, limb or public property or constitute a nuisance. The Superintendent may set limitations established in the regulations below if, in his opinion, more severe limitations are necessary to meet the above objectives. In forming his opinion as to the acceptability, the Superintendent will give consideration to such factors as the quantity of the subject waste in relation to flows and velocities in the sewers, materials of construction of the sewers, the wastewater treatment process employed, capacity of the wastewater treatment plant, degree of treatability of the waste in the wastewater treatment plant and other pertinent factors. The limitations or restrictions on materials or characteristics of waste or wastewaters discharged to the sanitary sewer which shall not be violated without approval of the Superintendent are as follows:
A. 
Any liquid or vapor having a temperature higher than 150° F. (65° C.), or in such quantities that the temperature at the treatment works influent exceeds 40° C. (104° F.) unless the POTW is designed to accommodate such heat.
B. 
Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 100 milligrams per liter or containing substances which may solidify or become viscous at temperatures between 32° F. and 150° F. (0° C. to 65° C.).
C. 
Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of 3/4 horsepower (0.76 horsepower metric) or greater shall be subject to the review and approval of the Superintendent. Garbage grinders shall not be used for disposal of plastic, paper products, inert materials or garden wastes or wastes generated in preparation of food not normally consumed on the premises.
D. 
Any waters or wastes containing strong acid iron-pickling wastes or concentrated plating solutions, whether neutralized or not.
E. 
Any waters or wastes containing iron, chromium, copper, zinc and similar objectionable or toxic substances, or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Superintendent or state and federal regulations for such materials.
F. 
Any waters or wastes containing taste- or odor-producing substances in such concentrations exceeding limits which may be established by the Superintendent.
G. 
Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by applicable local, state or federal regulations.
H. 
Any waters or wastes having a pH lower than 6.0 or higher than 8.0.
I. 
Materials which exert or cause:
(1) 
Unusual concentrations of inert suspended solids, such as, but not limited to, fuller's earth, lime slurries and lime residues, or of dissolved solids, such as, but not limited to, sodium chloride and sodium sulfate.
(2) 
Excessive discoloration, such as, but not limited to, dye wastes and vegetable tanning solutions.
(3) 
Unusual BOD, chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
(4) 
Unusual volume of flow or concentration of wastes constituting slugs as defined herein.
J. 
Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
K. 
Any substance which may cause the POTWs effluent or any other product of the POTW, such as residues, sludge or scum, to be unsuitable for reclamation process where the POTW is pursuing a reuse and reclamation program. In no case shall a substance discharged to the POTW cause the POTW to be in noncompliance with sludge use or disposal criteria, guidelines or regulations affecting sludge use or disposal development pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substance Control Act or state criteria applicable to the sludge management method being used.
A. 
If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in § 100-26 of this article and which, in the judgment of the Superintendent, may have a deleterious effect upon the sewage works, processes, equipment or receiving waters or which otherwise create a hazard to life or constitute a public nuisance, the Superintendent may:
(1) 
Reject the wastes;
(2) 
Require pretreatment to an acceptable condition for discharge to the public sewers;
(3) 
Require control over the quantities and rates of discharge; and/or
(4) 
Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of § 100-32 of this article.
B. 
If the Superintendent permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the Superintendent and subject to the requirements of all applicable codes, ordinances and laws.
Interceptors and/or separators shall be provided in accordance with Article XII.
Where preliminary treatment or flow-equalizing facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense.
The municipality shall require significant industrial users, or as required by the Superintendent, to install a suitable control manhole, together with such necessary meters and other appurtenances, in the building sewer to facilitate observation, sampling and measurement of the wastes prior to entering the municipal sewer system. Such manhole shall be accessibly and safely located and shall be constructed in accordance with plans approved by the Superintendent. The manhole shall be installed by the owner at his expense and shall be maintained by him so as to be safe and accessible at all times.
All measurements, tests and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Health Association, and shall be determined at the control manhole provided or upon suitable samples taken at said control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb and property. The particular analyses involved will determine whether a twenty-four-hour composite of all outfalls of a premises is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from twenty-four-hour composites of all outfalls, whereas pH's are determined from periodic grab samples.
Special agreements and arrangements between the municipality and any person or agency, or special permits issued by the municipality to any person or agency, may be established or issued when, in the opinion of the municipality, unusual or extraordinary circumstances compel special terms and conditions.
Significant contributing industries, which are industrial users of the publicly owned treatment works that have a flow of 50,000 gallons or more per average workday; have a flow greater than 5% of the flow carried by the municipal system receiving the waste; have in its waste a toxic pollutant in toxic amounts as defined in standards issued under Section 307(a) of the Federal Water Pollution Control Act; have been identified as one of the 21 industrial categories; or are found by the permit issuance authority in connection with the issuance of a State Pollutant Discharge Elimination System permit to the publicly owned treatment works receiving the waste to have significant impact, either singly or in combination with other contributing industries, on that treatment works or upon the quality of effluent from that treatment works, must comply with federal pretreatment standards and any other applicable requirements promulgated by the Environmental Protection Agency in accordance with Section 307 of the Federal Water Pollution Control Act Amendments (FWPCAA) of 1972 and any more stringent pretreatment standards necessitated by local conditions.
Industrial users must obtain written authorization from the Superintendent for the disposal of their wastes into the system with periodic renewal of this authorization as directed by the Superintendent.
A. 
The maximum period for such authorization shall be two years, subject to written renewals, with each renewal having a maximum period of two years.
B. 
Any such authorization, or renewal thereof, is subject to withdrawal, modification or change by the municipality should the municipality deem the same is the public interest. Before a withdrawal, modification or change is effected, the industrial user shall be given notice thereof with an opportunity to be heard.
C. 
No authorization shall be assigned, transferred or sold or used at premises or in an operation or process different from that for which the same was issued.
D. 
Industrial users shall apply for a new written authorization if the operation or process for which the same was issued is changed so that wastewater characteristics or flow is altered.
Industrial users must, in order to obtain authorization to discharge industrial wastes into the system, provide information describing wastewater, including but not limited to volume; constituents and characteristics of wastewater; flow rates; each product produced by type, amount and rate of production; and description of activities, facilities and plant process on the premises, including all materials, processes and types of materials which are or could be discharged.
The disposal into the sewer system of any pollutant by any person is unlawful except in compliance with the Federal Water Pollution Control Act and other applicable laws, rules and regulations.[1]
[1]
Editor's Note: See 33 U.S.C. § 1251 et seq.
Industrial users shall notify the municipality immediately upon accidentally discharging wastes in violation of this chapter. This notification shall be followed, within 15 days of the date of occurrence, by a detailed written statement describing the causes of the accidental discharge and the measures being taken to prevent future occurrence. Such notification will not relieve users of liability for any expense, loss or damage to the sewer system, treatment plant or treatment process or for any fines imposed on the municipality under applicable state and federal regulations.
A notice shall be furnished and permanently posted on the industrial user's bulletin board advising employees whom to call in case of an accidental discharge in violation of this chapter. Also, copies of this chapter are to be made available to the user's employees.
Any direct or indirect connection or entry point for persistent or deleterious wastes to the user's plumbing or drainage system should be eliminated. Where such action is impractical or unreasonable, the user shall approximately label such entry points to warn against discharge of such wastes in violation of this chapter.