A. Permit To Connect:
1. Permit Required: 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 superintendent, as per subsection 6-3-3B of this chapter. (Ord. O-5-73, 2-20-1973)
2. Classes Of Permits; Applications: There shall be two (2) classes of building sewer permits: a) for residential and commercial service; and b) 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 superintendent. (Ord. O-7-79, 8-6-1979; amd. 2017 Code)
B. Separate Building Sewers: 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 conveniently 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.
C. Use Of Existing Sewers: 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.
D. Installation And Connection Requirements And Specifications:
1. The building sewer shall be cast iron soil pipe, ASTM specification A-74, latest revision, or equivalent; vitrified clay sewer pipe, ASTM specification C-13 or C-200, latest revision, or equivalent; or other suitable material approved by the superintendent. Joints shall be tight and waterproof. Any part of the building sewer that is located within ten feet (10') of a water service pipe shall be constructed of cast iron soil pipe with leaded joints or equal substitute. 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 unstable ground, the building sewer shall be of cast iron soil pipe; except, that nonmetallic material may be accepted if laid on a suitable concrete bed or cradle as approved by the superintendent.
2. All joints in vitrified clay pipe shall be compression type joints conforming to ASTM specification C-425, latest revision. Joints for cast iron soil pipe shall be lead and oakum, compression joint using rubber gasket, or no-hub joint using neoprene gasket and stainless steel clamp. Joints between dissimilar materials or materials not mentioned shall be by suitable adapter fitting or other method approved by the superintendent. (Ord. O-5-73, 2-20-1973)
3. 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 four inches (4") for single-family residential buildings or less than six inches (6") for all other buildings. The slope of such pipe up to and including six inches (6") shall be not less than one-eighth inch (1/8") per foot. For larger sizes of pipe, the minimum slopes shall be according to all state and local regulations. (Ord. O-8-74, 1974)
4. 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 any bearing wall if within three feet (3') of any said 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 insofar as possible. Changes in direction or grade shall be allowed only when a proper manhole is constructed at the location of the change.
5. 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.
6. a. 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 C-12, latest revision; except, that no backfill shall be placed until the work has been inspected.
b. 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 and any other governmental agency affected.
7. The connection of the building sewer into the public sewer shall be made at the Y or T branch, if such branch is available at a suitable location. If the public sewer is twelve inches (12") in diameter or less and no properly located Y or T branch is available, the owner shall, at his expense, install a Y or T branch in the public sewer at the location specified by the superintendent. Where the public sewer is greater than twelve inches (12") in diameter, and no properly located Y branch is available, a neat hole may be cut into the public sewer to receive the building sewer, with entry in the downstream direction at an angle of about forty five degrees (45°). A forty five degree (45°) ell may be used to make such connection, with the spigot end cut so as not to extend past the inner surface of the public sewer. 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, but no higher than a point one-half (1/2) the vertical distance between the invert and the crown of the 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. Manholes shall be constructed at any junction of a ten inch (10") diameter line or larger into a public sewer.
E. Inspections: 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.
F. Liability For Costs And Expenses: 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 and the maintenance of said sewer. (Ord. O-5-73, 2-20-1973)