A. Old building sewers may be used in connection with new buildings or new building sewers only when they are found, on examination and testing by the Superintendent of Public Works, to meet all requirements of this title.
B. Building sewers shall be of a material and type approved by the Oregon State Specialty Plumbing Code and shall meet the same requirements with regard to quality of materials and workmanship as the rest of the sanitary system. A clean-out shall be installed to within 12 inches of the ground surface and connected at the joint of the building sewer and the city lateral. The invert of the building sewer shall be at the same or higher elevation than the invert of the lateral at the point of connection.
C. No trees shall be planted or allowed to mature in that portion of a city right-of-way within 10 feet of a sewer lateral.
D. All building sewers shall be laid on not less than 2% grade; shall be not less than 5 feet from any building, unless otherwise approved by the Superintendent of Public Works; shall have not less than 4 feet, 6 inches of cover at the curb line, 18 inches at the property line and 12 inches inside the property line, and shall be not less than 6 inches in diameter from the public sewer to the property line, nor less than 3 inches in diameter inside the property line; provided, the Superintendent of Public Works may, where conditions in the opening require, specify larger building sewers than herein provided. Not more than 1 building shall be connected with a building sewer; except where the connection is made inside the property line and the owner or owners of the premises connected shall make and file in the office of the City Recorder an easement for the purpose; or except where connection is to an existing building sewer within a public street and written permission from the owner or owners of the premises served by the building sewer has been filed with the Superintendent of Public Works and approved by him or her. All excavation for building sewer installations shall be adequately guarded with a barricade 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 Superintendent of Public Works at the expense of the property owner.
E. All excavation required for the installation of a building sewer shall be open trench work, unless otherwise approved by the Superintendent of Public Works. Pipe laying and backfill shall be performed in accordance with regulations of the Oregon Department of Environmental Quality, Oregon State Plumbing Code and other applicable codes.
F. The connection of the building sewer into the public sewer shall be made at a service connection lateral extended to the right-of-way line of a public thoroughfare. If no lateral already exists from a sewer main, the Superintendent of Public Works shall cause the installation of 1 or more laterals in keeping with the following standards:
1. Previously Developed Lots. The city shall install, at its expense, a service connection lateral to each previously developed lot where the existing development has utilized an on-site sewage disposal system and the other requirements for sewer connection have been met.
2. Vacant Lots. The city will install, by request, at the expense of the owner, laterals to undeveloped lots. Owners will be billed for all costs including labor, equipment, materials, bookkeeping, and any other costs directly attributable to the requested installation. An exception shall be made in the case of any vacant lot in a subdivision where it is found that the construction of laterals did not conform to the construction plans or “as-built” plans on file in the Public Works Department. In these cases the Superintendent shall authorize the construction of a lateral at city expense.
3. Vacant Tracts. The Superintendent of Public Works shall, in order to avoid later street cuts and related construction difficulties, cause the construction of sewer laterals to serve vacant tracts and large undeveloped areas. To determine the correct number and proper location of the laterals, the Superintendent shall utilize the land use map of the comprehensive plan to determine the probable ultimate development of the site. The Superintendent of Public Works shall file with the City Recorder a statement of costs for this lateral construction. These costs, plus interest at the rate of 8% per annum, shall be added to the city’s customary sewer connection charge.
G. The city shall be responsible for the general maintenance of service connection laterals but shall bear no responsibility for the repair or maintenance of private building sewers. In any case where city crews are called upon to make repairs to a lateral and the repairs also include work done on the building sewer, the property owner shall be billed for any and all work undertaken as a result of a blockage which was located on private property.