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§ 31.331 PROHIBITED CONNECTIONS
   (A)   No person shall make connection of roof downspouts, basement wall seepage or floor seepage, exterior foundation drains, areaway drains, or other surface runoff or groundwater to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer. Any such connections which already exist on the effective date of this chapter shall be completely and permanently disconnected within sixty (60) days of the effective date of this chapter. The owner(s) of any building sewers having such connections, leaks or defects shall bear all costs incidental to removal of such sources. Pipes, sumps, and pumps for such sources of ground and surface water shall be separate for wastewater facilities. Removal of such sources of water without presence of separate facilities shall be evidence of drainage to public sanitary sewer.
   (B)   Floor, basement, or crawl space drains which are lower than ground surfaces surrounding the building shall not be connected to the building sanitary sewer. No sanitary inlet which is lower than six (6) inches above the top of the lowest of the two (2) adjacent public sanitary sewer manholes shall be connected by direct drainage to the building sanitary sewer. Building sanitary sewer connections in structures not meeting the criteria of this section will be permitted only if the property owner has:
      (1)   Installed an individual pumping facility at the structure to receive the building sewage. The pumping facility shall include a discharge pipe with a high point which meets the criteria above; or,
      (2)   Installed a sewer backflow stop or flap of such nature and design to provide gravity flow to the sanitary sewer system and to prevent sewage backflow into the property improvement.
(Ord. No. 17-91, 6-25-91)
§ 31.332 DESIGN AND INSTALLATIONS
   (A)   A separate and independent building sewer shall be provided for every building; except where one building stands at the rear of another on an interior lot and no private sewer is available or can be constructed to the rear building through an adjoining alley, courtyard, or driveway. The sewer from the front building may be extended to the rear building and the whole considered as one building sewer, but the city does not and will not assume any obligation or responsibility for damage caused by or resulting from any such single connection aforementioned.
   (B)   Old building sewers may be used in connection with new buildings only when they are found, on examination and test by the superintendent, to meet all requirements of this chapter. Permit and inspection fees for new buildings using existing building sewers shall be the same as for new building sewers. If additional sewer customers are added to the old building sewers, additional sewer tap fees shall be charged accordingly even though no new sewer tap is actually made into the city system.
   (C)   Extension of customer service lines from any point on the customer's side of the tap for delivery of waste from any location other than that of the customer in whose name the tap is registered shall not be permitted.
   (D)   The building sewer shall be cast iron soil pipe, ASTM A-74, latest revision, PVC (polyvinyl-chloride) sewer pipe, ASTM D-3034, latest revision, unglazed clay sewer pipe, ASTM C-261, latest revision, vitrified clay sewer pipe, ASTM C-700, latest revision, or ductile iron pipe, AWWA specification C-151 cement-lined, and shall meet requirements of state plumbing code. Joints shall be as set out hereinafter. Any part of the building sewer that is located within five (5) feet of a water service pipe shall be constructed with cast iron soil pipe or ductile iron pipe, unless the building sewer is at least one foot deeper in the ground than the water service line. In the latter case, vitrified clay pipe may be used. Cast iron soil pipe or ductile iron pipe may be required by the city where the building sewer is exposed to damage or stoppage by tree roots. Cast iron soil pipe or ductile iron pipe shall be used in filled or unstable ground, in areas where the cover over the building sewer is less than three (3) feet, or in areas where the sewer is subject to vehicular or other external loads.
   (E)   The size, slope, alignment, materials of construction of a building sewer, and the methods to be used in excavating, placing of the pipe, jointing, testing, and backfilling the trench, shall all conform to the requirements of the local and state building and plumbing codes and other applicable rules and regulations of the city.
   (F)   All costs and expenses incidental to the installation and connection of the building sewer shall be borne by the owner(s). The owner(s) shall indemnify the city for any loss or damage that may directly or indirectly be occasioned by the installation of the building sewer. Fees for connection shall be as established by the city.
   (G)   The owner shall ensure that all excavations for building sewer installation shall be adequately guarded with barricades and lights so as 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.
   (H)   In all buildings in which any sanitary facility drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such drain shall be lifted by an approved means and discharged to the same building sewer. Drain pipe and sump for collection of such sanitary drainage shall be above basement floor or in separately watertight or drained sump or channel.
   (I)   The building sewer shall be connected into the public sewer at the easement or property line. Where no property located service branch is available, an authorized agent of the city shall cut a neat hole into the main line of the public sewer and a suitable wye or tee saddle shall be installed to receive the building sewer. The invert of the building sewer at such point of connection with a saddle shall be in the upper quadrant to the main line of the public sewer. A neat workmanlike connection, not extending past the inner surface of the public sewer, shall be made and the saddle made secure and watertight by encasement in epoxy cement specially prepared for this purpose. A wye and H bend fitting shall be installed at the property line between the public sewer and the building sewer. This fitting shall serve the purpose of a cleanout and for applying the smoke test during inspection of the line. After testing, a cast iron or ductile iron riser will be inserted in this fitting and brought flush with the ground surface. A stopper or plug, outfitted with a type joint applicable to the pipe used, shall seal this riser against the intrusion of ground or surface water.
   (J)   All building sanitary sewer lines will be installed so as to meet or exceed the most current revision of the state plumbing code.
   (K)   All persons working on city sewers with a cleaning rod must use an approved type rod in cleaning sewer connections to city sewers.
(Ord. No. 17-91, 6-25-91)
§ 31.333 INSPECTION
   (A)   The applicant for the building sewer permit shall notify the superintendent when the building sewer is ready for connection to the public sewer. The connection shall be made under the supervision of the superintendent or his representative. The connections shall be made gastight and watertight and verified by proper testing.
   (B)   All building sewers shall be smoke tested through the wye branch at the public sewer connection, with public sewer tightly plugged off, after connections at both ends are made and after all pipe is properly bedded and backfilled at least to top of pipe and if backfill is completed, within two weeks after completion of backfill. At time of test, any openings into the building drain inside the building shall be water trapped or plugged. Any leakage of smoke from building sewer or building drain and plumbing shall be located at test and repaired to stand repetitions of smoke test without leakage. When smoke testing is completed, the temporary flow line plug shall be removed and a permanent water tight plug shall be placed in branch of test wye-branch and carefully backfilled by hand and tamped to at least six (6) inches above the top of the branch.
(Ord. No. 17-91, 6-25-91)
§ 31.334 DUTY OF ARCHITECTS, CONTRACTORS
   All architects, contractors, builders, or other persons who shall hereafter erect new buildings for dwelling, manufacturing or commercial purposes, on a lot or parcel of ground abutting on a street, alley or easement in the city in which there has been installed or may be installed and maintained any sewer line shall, before erecting any building, exhibit to the city council, or any other board or body of the city which may be in charge and control of the municipal sewer system, satisfactory evidence that a means has been or will be provided for connecting the sanitary sewerage drain pipes from the building with the sewer line.
(Ord. No. 9.61, § 2, 5-24-61)
Division 5. Pollutant Discharge Limits
§ 31.340 GENERAL CONDITIONS
   The following described substances, materials, waters or wastes shall be limited in discharges to municipal systems to concentration or quantities which: will not harm either the sewers, wastewater treatment process or equipment, will maintain and protect water quality in the receiving stream, and will not otherwise endanger lives, limb, public property, or constitute a nuisance. The superintendent may set additional limitations or limitations more stringent than those established in the provisions below if in his opinion more severe limitations are necessary to meet the above objectives. In forming his opinion as to the acceptability of a discharge, the superintendent shall give consideration to such factors as the quantity of 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, and other pertinent factors.
(Ord. No. 17-91, 6-25-91)
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