§ 52.033 NOTIFICATION TO APPROVING AUTHORITY FOR INSPECTION.

   The applicant for the building sewer permit shall notify the approving authority when the building sewer is ready for inspection and connection to the public sewer. The connection shall be made under the supervision of the approving authority.

(1994 Code, § 52.033) (Ord. 262, passed 3-8-1976)

§ 52.034 EXCAVATIONS TO BE GUARDED TO PROTECT PUBLIC FROM HAZARD.

   All excavations for building sewer installation shall be adequately guarded with barricades and lights to protect the public from hazard. Streets, sidewalks, parkways and other public property disturbed in the course of the work shall be restored in a manner satisfactory to the city.

(1994 Code, § 52.034) (Ord. 262, passed 3-8-1976) Penalty, see § 52.999

§ 52.035 ADEQUATE CAPACITY PREREQUISITE TO NEW CONNECTIONS.

   No new connections shall be made to the sewerage system unless adequate capacity, as determined by the approving authority, is available in all downstream sewers, lift stations, force mains and the sewerage treatment plant, including capacity for BOD and suspended solids.

(1994 Code, § 52.035) (Ord. 262, passed 3-8-1976) Penalty, see § 52.999

USE OF PUBLIC SEWERS

§ 52.050 DISCHARGE OF STORM WATER AND OTHER UNPOLLUTED DRAINAGE.

   (A)   No person shall discharge or cause to be discharged any storm water, surface water, ground water, roof runoff, subsurface drainage, uncontaminated cooling water or unpolluted industrial process waters to any sanitary sewer.

   (B)   Storm water and all other unpolluted drainage shall be discharged to the sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the approving authority. Industrial cooling water or unpolluted process waters may be discharged, on approval of the approving authority, to a storm sewer or natural outlet.

(1994 Code, § 52.045) (Ord. 262, passed 3-8-1976) Penalty, see § 52.999

§ 52.051 PROHIBITED DISCHARGES TO PUBLIC SEWERS.

   No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer:

   (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 sewerage treatment process, constitute a hazard to humans or animals, create a public nuisance or create any hazard in the receiving waters of the sewerage 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 sewerage works; and/or

   (D)   Solid or viscous substances in quantities or of the size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the sewerage 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 and the like, either whole or ground by garbage grinders.

(1994 Code, § 52.046) (Ord. 262, passed 3-8-1976) Penalty, see § 52.999

§ 52.052 DISCHARGE OF CERTAIN WASTES RESTRICTED.

   (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 approving authority, that the wastes can harm either the sewers, sewerage treatment process or equipment; have an adverse effect on the receiving stream, or otherwise endanger life, limb, public property or constitute a nuisance. In forming this opinion as to the acceptability of these wastes, the approving authority will give consideration to the factors as the quantities of subject wastes in relation to flows and velocities in the sewers; materials of construction of the sewers; nature of sewerage treatment process; capacity of the sewerage treatment plant; degree of treatability of wastes in the sewerage 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, 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 and 65°C);

      (3)   Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor greater than three-fourths horsepower shall be subject to review and approval of the approving authority;

      (4)   Any waters or wastes containing strong acid, iron, pickling wastes or concentrated plating solutions whether neutralized or not;

      (5)   Any waters or wastes containing iron, chromium, copper, zinc and similar objectionable or toxic substances; or wastes exerting an excessive chlorine requirement, to the degree that any such material received in the composite sewerage at the sewerage treatment works exceeds the limits established by the approving authority for such materials;

      (6)   Any waters or wastes containing phenols or other taste- or odor-producing substances, in such concentration exceeding limits which may be established by the approving authority, as necessary, after treatment of the composite sewerage, to meet the requirements of the state, federal or other public agencies of jurisdiction for the discharge to the receiving waters;

      (7)   Any radioactive wastes or isotopes of long half-life (over 100 days) without special permit. The radioactive isotopes I131 and p32 used at hospitals are not prohibited if properly diluted at the source;

      (8)   Any waters or wastes having a pH in excess of 9.5;

      (9)   Materials which exert or cause:

         (a)   Unusual concentration of inert suspended solids including, but not limited to, sodium chloride and sodium sulfate;

         (b)   Excessive discoloration, including, 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 sewerage treatment works; and/or

         (d)   Unusual volume of load or concentration of wastes constituting “slugs”.

      (10)   Waters or wastes containing substances which are not amenable to treatment or reduction by the sewerage treatment processes employed, or are amenable to treatment only to the degree that the sewerage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.

(1994 Code, § 52.047) (Ord. 262, passed 3-8-1976) Penalty, see § 52.999