(a) Permit Required to Work on Sewer. No unauthorized person shall uncover, make any connections with or opening into, use, alter or disturb any public sewer or appurtenance thereof without first obtaining a written permit from the City Clerk, after approval by the Water, Sewage and Street Superintendent.
(b) Permits.
(1) Two types of permits. There shall be two classes of building sewer permits: one for residential and commercial service, and one for service to establishments producing industrial wastes. In either case, the owner or his agent shall make application on a special form furnished by the City. The permit application shall be supplemented by any plans, specifications or other information considered pertinent in the judgment of the City Clerk or Superintendent.
(Ord. 13(60-61). Passed 6-15-60.)
(2) Fees. A permit and inspection fee of twenty-five dollars ($25.00) for a residential or commercial building sewer permit, and fifty dollars ($50.00) for an industrial building sewer permit, shall be paid to the City Clerk at the time the application is filed.
(c) Installation Costs To Be Paid by Owner. All costs and expenses incident to the installation and connection of the building sewer shall be borne by the owner. The owner shall indemnify the City from any loss or damage that may directly or indirectly be occasioned by the installation of the building sewer.
(d) When Separate Building Sewer Required. A separate and independent building sewer shall be provided for every building. An exception shall be made when one building stands at the rear of another on an interior lot, and when no private sewer is available or can be constructed to the rear building through an adjoining alley, court, yard or driveway, the building sewer from the front building may be extended to the rear building and the whole considered as one building sewer.
(e) Use of Old Building Sewers. Old building sewers may be used in connection with new buildings only when they are found, on examination and testing by the Superintendent, to meet all requirements of this chapter.
(Ord. 13(60-61). Passed 6-15-60.)
(f) Materials Used in Construction of Building Sewer. The building sewer shall be vitrified clay pipe, ASTM Specification (C700-78a) or equal, ABS plastic pipe, schedule 40 acrylonitrile, butadiene, styrene. Joints shall be tight and waterproof. Cast iron pipe with leaded joints may be required by the Superintendent where the building sewer is exposed to damage by tree roots. If installed in filled or unstable ground, the building sewer shall be of vitrified clay pipe, except that nonmetallic material may be accepted if laid on a suitable concrete bed or cradle, as approved by the Superintendent.
(Ord. 34. Passed 12-7-72.)
(g) Size and Slope. The size and slope of the building sewer shall be subject to the approval of the Superintendent, but in no event shall the diameter be less than six inches. The slope of such six-inch pipe shall be not less than one-eighth inch per foot.
(h) Laying Building Sewer.
(1) Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. No building sewer shall be laid parallel to or within three feet of any bearing wall, which might thereby be weakened. The depth shall be sufficient to afford protection from frost. The building sewer shall be laid at uniform grade and in straight alignment as far as possible. Changes in direction shall be made only with properly curved pipe and fittings.
(2) In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such drain shall be lifted by approved artificial means and discharged to the building sewer.
(3) All excavations required for the installation of a building sewer shall be open trench work, unless otherwise approved by the Superintendent. Pipe laying and backfill shall be performed in accordance with ASTM specification (C12-77), except that no backfill shall be placed until the work has been inspected.
(i) Joints and Connections.
(1) All joints and connections shall be made gastight and watertight.
(2) Cast iron pipe joints shall be firmly packed with oakum or hemp and filled with molten lead, Federal Specification (QQC-40-(2)-70 type I), not less than one inch deep. Lead shall be run in one pouring and caulked tight. No paint, varnish or other coatings shall be permitted on the jointing material until after the joint has been tested and approved.
(3) All joints in vitrified clay pipe or between such pipe and metals shall be made with approved hot-poured material or cement mortar as specified below.
(4) Material for hot-poured joints shall not soften sufficiently to destroy the effectiveness of the joint when subjected to a temperature of 160 degrees Fahrenheit, nor be soluble in any of the wastes carried by the drainage system. The joint shall first be caulked tight with jute, hemp or similar approved material.
(5) Cement joints shall be made by packing a closely twisted jute or oakum gasket of suitable size to fill partly the annular space between the pipes. The remaining space shall be filled and firmly compacted with mortar composed of one part Portland cement and three parts mortar sand. The material shall be mixed dry and only sufficient water shall be added to make the mixture workable. Mortar which has begun to set shall not be used or retempered. Lime putty or hydrated lime may be substituted to the extent of not more than twenty-five percent (25%) of the volume of the Portland cement that may be added.
(6) Other jointing materials and methods may be used only by approval of the Superintendent.
(j) Connection Into Public Sewer at "Y" Branch. The connection of the building sewer into the public sewer shall be made at the "Y" branch, if such branch is available at a suitable location. If no properly located "Y" branch is available, the owner shall, at his expense, install a saddle on the public sewer at the location specified by the Superintendent.
The invert of the building sewer at the point of connection shall be at the same or at a higher elevation than the invert of the public sewer. A smooth, neat joint shall be made, and the connection made secure and watertight by encasement in concrete. Special fittings may be used for the connection only when approved by the Superintendent. The owner shall install a proper and approved cleanout at his property line or at such place as may be designated by the Superintendent if the public sewer is located on the owner's property.
(k) Inspection of Site Ready for Connection. The applicant for the building sewer permit shall notify the Superintendent when the building sewer is ready for inspection and connection to the public sewer. The connection shall be made under the supervision of the Superintendent or his representative.
(l) Safety Barricades and Lights at Excavations; Restoration of Public Property. 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.
(m) Control Manhole Required for Building Sewer Carrying Industrial Wastes. When required by the City, the owner of any property served by a building sewer carrying industrial wastes shall install a suitable control manhole in the building sewer to facilitate observation, sampling and measurement of the wastes. Such manhole when required 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.
(Ord. 13(60-61). Passed 6-15-60.)