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§ 53.060 INSTALLATION PROCEDURE.
   In making excavations in streets, alleys or sidewalks for the purpose of installing pipe, or making repairs, the paving, stones and earth must be removed and deposited in a manner that will occasion the least inconvenience to the public and provide for adequate drainage. No person shall leave an excavation made in the street, alley or sidewalk open at any time without a barricade, and during the night, warning lights. After the house sewer is laid, the public ways and property shall be restored to good condition. If the excavation in the public ways and property is left open or unfinished for a period of 24 hours or more, the Utilities Superintendent shall have the duty to finish or correct the work, and all expenses so incurred shall be charged to the owner, occupant or lessee of the property. All installations or repairs of pipes require two inspections by the Utilities Superintendent. The first inspection shall be made when connections or repairs are complete and before the pipes are covered. The second inspection shall be made after the dirt work is completed and the service restored. It is the customers responsibility to notify the Utilities Superintendent at the time the work is ready for each inspection. All installation shall be done under the supervision and strictly in accordance with the rules, regulations and specifications for such installation prescribed by the Utilities Superintendent; provided, that said rules, regulations and specifications have been reviewed and approved by the governing body.
(Prior Code, § 3-238)
Statutory reference:
   Similar provisions, see Neb. RS 18-503
WASTEWATER
§ 53.075 STORMWATER, SURFACE WATER, GROUNDWATER, COOLING WATER AND PROCESS WATER.
   (A)   No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage, including interior and exterior foundation drains, uncontaminated cooling water or unpolluted industrial waters to any sanitary sewer.
   (B)   Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the Superintendent. Industrial cooling water or unpolluted process water may be discharged, on approval of the Superintendent, to a storm sewer, combined sewer or natural outlet. The contributor of any identifiable discharge of polluted water to the sanitary sewer system shall be held responsible for reimbursing the municipality for such costs. The costs shall be determined by the Superintendent with the approval of the governing body.
(Prior Code, § 3-239) Penalty, see § 53.999
§ 53.076 FLAMMABLE, TOXIC, CORROSIVE AND OBSTRUCTIVE SUBSTANCES.
   (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 wastewater treatment plant;
      (3)   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;
      (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/or
      (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)   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.
   (C)   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, § 3-240) Penalty, see § 53.999
§ 53.077 SPECIAL PROHIBITIONS.
   (A)   No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes if it appears likely in the opinion of the Superintendent that such wastes can harm either the sewers, sewage treatment process or equipment, have an adverse effect on the receiving stream or can otherwise endanger life, limb, public property or constitute a nuisance. In forming his or her opinion as to the acceptability of these wastes, the Superintendent will give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant and other pertinent factors.
   (B)   The substances prohibited are:
      (1)   Any liquid or vapor having a temperature higher than 150°F (65°C);
      (2)   Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 100 mg/l or containing substances which may solidify or become viscous at temperatures between 32° and 150°F (0° and 65°C);
      (3)   Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor three-fourths’ horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the Superintendent;
      (4)   Any waters or wastes containing strong acid iron pickling wastes or concentrated plating solutions, whether neutralized or not;
      (5)   Any water 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 for such materials;
      (6)   Any waters or wastes containing phenols or other taste- or odor-producing substances, in such concentrations exceeding limits which may be established by the Superintendent as necessary, after treatment of the composite sewage, to meet the requirements of state, federal or other public agencies of jurisdiction for such discharge to the receiving waters;
      (7)   Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Superintendent in compliance with applicable state or federal regulations;
      (8)   Any waters of wastes having a pH in excess of 9.5;
      (9)   Materials which exert or cause:
         (a)   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 or sodium sulfate);
         (b)   Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
         (c)   Unusual BOD, chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works; or
         (d)   Unusual volume of flow or concentration of wastes constituting “slugs” as defined herein.
      (10)   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.
(Prior Code, § 3-241) Penalty, see § 53.999
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