13.08.105 Cost of sewer line extension.

   The costs of sewer line extensions shall be the responsibility of the owner of the lot requesting service.

(Ord. 553, 2017)

13.08.110 Abandonment of building connection—Permit required.

   No person shall abandon any building connection without first obtaining a written permit therefor. Such building connection shall be effectively sealed with a vitrified clay stopper inserted in the bell of the sewer extending to the property line, which stopper shall be jointed as directed by the city manager. (Prior code § 4-3-38)

13.08.120 Discharge of unpolluted waters.

   A.   No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof run-off, subsurface drainage, uncontaminated cooling water, or unpolluted industrial process waters to any sanitary sewer.

   B.   Stormwater 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 governing body of the city. Industrial cooling waters or unpolluted process waters may be discharged on approval of the governing body of the city to a storm sewer, or natural outlet. (Prior code § 4-3-47 (3, 4))

13.08.130 Prohibited wastes.

   A.   No person shall discharge or cause to be discharged any of the following described liquids 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 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 gm/1 as CN in the wastes as discharged to the public sewer;

      3.   Any herbicides and pesticides;

      4.   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;

      5.   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 fleshing, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders;

      6.   Any amount of the following heavy metals: Antimony, Arsenic, Barium, Beryllium, Bismuth, Boron, Cadmium, Cobalt, Chromium (Hexa), Chromium (Tri), Copper, Iron, Lead, Manganese, Mercury, Molybdenum, Nickel, Rhenium, Selenium, Silver, Strontium, Tellurium, Tin, Uranyl ion, or Zinc.

   B.   Dilution of toxic materials and heavy metals in lieu of removal is not acceptable. (Prior code § 4-3-47 (5))

13.08.140 Wastes subject to review by city.

   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 governing body of the city, 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, or public property, or constitute a nuisance. In forming an opinion as to acceptability of these wastes, the governing body of the city 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, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors. The substances which must be considered are:

   A.   Any liquid or vapor having a temperature higher than one hundred fifty degrees Fahrenheit or sixty-five degrees Celsius;

   B.   Any water or waste containing fats, grease, wax, or oils, whether emulsified or not, in excess of one hundred mg/1 or containing substances which may solidify or become viscous at temperatures between thirty-two and one hundred fifty degrees Fahrenheit (zero and sixty-five degrees Celsius);

   C.   Any garbage that has not been properly shredded. The installation and operation of any garbage grinder larger than those normally manufactured and sold for residential and noncommercial use will not be installed without specific review and approval by the governing body of the city;

   D.   Any waters or wastes containing strong acid, iron pickling wastes, or concentrated plating solutions cannot be discharged to the sewerage system unless completely neutralized and approved by the governing body of the city for discharge;

   E.   Any waters or wastes containing reducing substances of an organic or inorganic nature, toxic or nontoxic, which exert an immediate chlorine demand if the discharge of such agents will prevent the achievement of an adequate chlorine residual in the effluent of the wastewater treatment facility;

   F.   Any waters or wastes containing phenols or other taste or odor producing substances, in concentrations exceeding limits established by the governing body of the city after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies of jurisdiction for such discharge to the receiving waters;

   G.   Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the governing body of the city in compliance with applicable state and federal regulations;

   H.   Any waters or wastes having a pH in excess of 9.5;

   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 chemical oxygen demand, or chlorine requirement in such quantities as to constitute a significant load on the sewage treatment works,

      4.   Slugs or shocks constituting an unusual volume of flow or concentration of wastes which will disturb the normal functioning of either the sewage treatment plant and/or collection system;

   J.   Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment process employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent can not meet the requirements of agencies having jurisdiction over discharge to the receiving waters. (Prior code § 4-3-47 (6))

13.08.150 Wastes deemed hazardous.

   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 Section 13.08.140 of this chapter, and which in the judgment of the governing body of the city 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 governing body of the city may:

      1.   Reject the wastes;

      2.   Require pretreatment to an acceptable condition for discharge to the public sewers; or

      3.   Require control over the quantities and rates of discharge.

   B.   If the governing body of the city 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 governing body of the city and the state, and subject to the requirements of all applicable codes, ordinances and laws. (Prior code § 4-3-47 (7))

13.08.160 Grease, oil and sand traps required when.

   Grease, oil and sand traps shall be provided when, in the opinion of the governing body of the city, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand or other harmful ingredients; except, that such traps shall not be required for private living quarters or dwelling units. All traps shall be of a type and capacity approved by the governing body of the city, and shall be located as to be readily and easily accessible for cleaning and inspection. Grease and oil traps shall be installed in all new filling stations, garages, restaurants and other new facilities wherein heavy discharge of grease and oil is to be expected. (Prior code § 4-3-47 (9))