A. Definitions: Unless specifically indicated otherwise, the meaning of terms used in this section shall be as follows:
ASTM: The American Society For Testing Materials.
BUILDING SEWERS: The part of the horizontal piping of the drainage system which extends from three feet (3') outside the building and which receives the discharge from the building drain and conveys it to the public sewer.
CS: Commercial standards specifications.
PUBLIC SEWERS: Sewers constructed in streets, alleys, roadways and easements and are the sewers to which the building sewers connect. All public sewers are under the control of the city.
SANITARY SEWERS: Pipes which carry sewage from building sewers, but exclude any storm surface water or groundwater.
B. Connection Required: Every building having plumbing fixtures installed or intended for human habitation and occupancy or use on premises abutting streets, alleys, roadways or easements in which there are public sewers shall have a connection with the public sewers.
C. Pipe: Piping used for building sewers shall be a minimum of four inches (4"), and shall conform to the following specifications: (1975 Code § 7-3-8)
1. PVC pipe and fittings shall conform with ASTM D-3034; also use "Standard Specifications For Polyvinyl Chloride Sewer Pipe And Fittings" with SDR of 35 four inches (4") to fifteen inches (15").
2. HDPE pipe meeting ASTM D-3350, and having a cell classification of PE 34-5434C. Workmanship and dimensions shall meet ASTM F174 requirements.
3. Asbestos-cement nonpressure sewer pipe shall conform to ASTM C428-63T, type 11 or federal specification SS-P-331b.
D. Joints:
1. PVC - furnish each pipe length with a bell designed to provide watertight joint when jointing bell and spigot with a rubber ring; also, on service lines, PVC pipe with glue fitting may be used.
2. HDPE pipe jointing - heat fusion weld all field joints to meet manufacturer's recommendations.
3. Asbestos-cement nonpressure sewer pipe shall be provided with a sleeve coupling of the same composition as the pipe, sealed with rubber compression rings.
4. Joints between asbestos-cement pipe and metal pipe shall be made by means of an adapter coupling. Approved rubber adapters may be used, provided the adapter is furnished with stainless steel compression rings. (1975 Code § 7-3-8; amd. 2015 Code)
E. Requirements For Services: The building sewer shall serve no more than the buildings located on one lot, with the exception where a single building and associated structures contingent to the building occupy more than one lot.
F. Restrictions:
1. All building sewers shall run from three feet (3') outside the building to the public sewer. All joints shall be watertight and inspected by the city prior to backfilling trenches. In no case will it be allowed to connect a building sewer to the outlet of a septic tank and discharge the waste from the septic tank into the public sewer.
2. Since the public sewer system of the city is sanitary sewer only, it will not be allowed to discharge any stormwater, surface water or groundwater into a building sewer which is connected to the public sewer.
G. Minimum Grades: Building sewers shall have a minimum grade from the building to the public sewer of not less than one- fourth inch (1/4") per foot.
H. Wye Connection: In cases where wyes are not provided on the public sewer or where wyes cannot be located, the city shall provide the necessary wye connection to which the building sewer will be connected.
I. Sewer Charge: With respect to all public sewer connections, the city shall make a charge equivalent to the actual cost of installing and/or inspection of the sewers being connected to the public sewer. (1975 Code § 7-3-8)