A. There shall be two (2) classes of building sewer permits: 1) for residential, and 2) for commercial and industrial wastes. In either case, the owner(s) 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. Residential is a permit fee of ten dollars ($10.00) and a one hundred- and fifty-dollar ($150.00) inspection fee. Commercial and Industrial is a permit fee of fifty dollars ($50.00) and a two-hundred-dollar ($200.00) inspection fee.
B. All costs and expense incidental to the installation and connection of the building sewer shall be borne by the owner(s). The owner(s) shall indemnify the City from any loss or damage that may directly or indirectly be occasioned by the installation of the building sewer. The owner shall be solely responsible for the care, maintenance and operation of their service pipes, apparatus and connection to the City's main.
C. The city is not responsible for service pipes, internal plumbing and fixtures; all owners at their own expense must keep service pipes to city mains and all their apparatus in good working order and properly protected from plugging, freezing or other dangers. No claims may be made against the city on account of the plugging, freezing or breaking of any service pipes or apparatus. No reduction from the regular rates shall be made for any time that service pipes or fixtures may be frozen.
D. 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, 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, 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.
E. The size, slope, alignment, materials of construction of all sanitary sewers including building sewers, and the methods to be used in excavating, placing of the pipe, joining, testing and backfilling the trench, shall all conform to City of East Helena Engineering Standards and uniform plumbing code.
1. Size: The minimum size allowed shall be four inches (4"). Pipes less than 8" must follow City of East Helena Engineering standards. Pipe size 8" and greater must follow City of East Helena Engineering standards and all DEQ requirements.
2. Slope: The minimum slope for the following size pipe shall be required:
a. One and twenty five one-hundredths foot (1.25') drop for each one hundred feet (100') of run of four inch (4") pipe;
b. Sixty two one-hundredths foot (0.62') drop for each one hundred feet (100') of run of six inch (6") pipe;
c. Forty one-hundredths foot (0.40') drop for each one hundred feet (100') of run for eight inch (8") pipe;
d. The slope of larger diameter pipe shall conform to the specifications contained in "Recommended Standards For Wastewater Treatment Systems" paragraph 24.31.
3. Materials:
a. The pipe material may be polyvinyl chloride (PVC) conforming to ASTM specification D3034 type PSM polyvinyl chloride sewer pipe and fittings with compression ring jointing or solvent weld jointing.
b. No other material shall be allowed.
E. Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such building drain shall be lifted at owner(s) expense by an approved means and discharged to the public sewer.
F. No person(s) shall make connection of roof downspouts, foundation drains, areaway drains or other sources of surface runoff or groundwater to a building sewer.
G. The connection of the building sewer into the public sewer shall conform to the requirements of the building and plumbing code and City of East Helena Engineering Standard.
H. 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 and testing shall be made under the supervision of city representative.
I. 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 per city engineering standards. (Ord. 150, 7-20-1982; amd. Ord. 151, 10-5-1982; Ord. 279, 4-19-2022)