Kingdom City Building Sewer, Design Criteria ordinance (§ 700.600)

A. 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 Building and Plumbing Code or other applicable rules and regulations of the Village. In the absence of code provisions or in amplification thereof, the materials and procedures set forth in appropriate specifications of the A.S.T.M. and W.P.C.F. Manual of Practice No. 9 shall apply.

B. Materials.

1. Solid wall ABS plastic, SDR-35 conforming to A.S.T.M. Specification D-2751. Joints shall be by solvent welding or rubber gasket, (except in regard to the ABS plastic other plastic materials may be used only if manufactured for the purpose of carrying sewer waste material and providing the above SDR figures are maintained); or

2. Extra strength clay pipe and fittings conforming to A.S.T.M. C700. Joints shall conform to A.S.T.M. C425 "Compression joints for vitrified clay bell and spigot pipe" or A.S.T.M. C594 "Compression couplings for vitrified clay plain end pipe," or

3. Cast iron soil pipe and fitting conforming to A.S.T.M. A74 with rubber gasket joints conforming to A.S.T.M. c564.

C. The building sewer shall be constructed of approved pipe and fittings meeting the current ASTM specifications.

D. All joints and connections shall be made gas tight and watertight. Connections between pipes of different materials shall be made by adapters specifically designed for that purpose and shall provide a gas and watertight connection.

E. Before joining the pipe in the trench, the bell and spigot surfaces shall be wiped free of dirt or other foreign matter, A lubricant or sealer as recommended by the pipe manufacturer shall be applied to the bell and spigot mating surfaces just before they are joined together.

F. The spigot end shall be positioned into the bell end of the pipe previously laid and shall then be shoved home to compress the joint and to assure a tight fit between the interfaces.

G. Solvent welds shall be made using materials specifically designed for the pipe used. "All purpose glues" shall not be used.

H. The size and minimum slope of the building sewer shall be as provided herein subject to the review and approval of the Superintendent, but in no event shall the pipe inside diameter be less than four (4) inches The following table shall be to determine the building sewer line used size requirements:

Whenever possible the building sewer shall be brought to the building at an elevation below the basement floor. The depth shall be sufficient to afford protection from frost. All excavations required for the installation of a building sewer shall be open trench work unless otherwise approved by the said inspector. Pipe laying and backfill shall be performed in accordance with ASTM specification D2321 for plastic and ASTM C12 for vitrified clay pipe except that no backfill shall be placed until the inspector or his/her representative has inspected the work. Cast iron soil pipe shall be installed in accordance with the requirements for vitrified clay pipe.

I. The building sewer line shall be placed on bedding material with a minimum thickness of three (3) inches. The bedding material shall be used to provide a uniform bearing area for the pipe and joints. Bedding material consists of crushed stone ranging in size from a maximum one-half (1/2) inch diameter to a minimum size, which is retained on a No. 4 size. Over excavation of the trench shall be backfilled to the proper grade by the use of bedding materials.

J. In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such drains shall be lifted by approved artificial means and discharged to the building sewer. No water operated sewage ejector shall be used.

K. The connection of the building sewer into the public sewer shall be made at the "t" or "y" branch designated for that property if such branch is available at a suitable location. Any connection not made at the designated "t" or "y" branch in the main sewer, shall be made only as directed by the said inspector. The connection of the building sewer into the public sewer shall conform to the requirements of the Building and Plumbing Code or other applicable rules and regulations of the Village, or the procedures set forth in appropriate specifications of the A.S.T.M. and the S.P.C.F.

Manual of Practice No. 9. All such connections shall be made gastight and watertight. The Superintendent before installation must approve any deviation from the prescribed procedures and materials.

L. Outside the foundation, the building sewer line shall have a cleanout installed complete with a watertight cap installed at the ground surface. An additional cleanout shall be placed at each bend in direction of forty-five degrees (45°) or greater. The alignment of the building sewer line shall be straight with bends made using fittings designed for the degree of bend required.

M. All excavations for building sewer installations 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 said City.