All building drains to serve structures to be connected to the sewer system of the village shall be constructed in accordance with the village standard details 1 and the following specifications. Where there is no specification, the "Standard Specifications For Water And Sewer Main Construction In Illinois", shall be used.
(A) Materials:
1. All sanitary sewer collector mains to be owned and maintained by the village shall be SDR-21 PVC pipe meeting ASTM D-2241, or class 52 cement lined ductile iron pipe with polywrap. Sanitary sewer service pipe from the village main to the property line shall be SDR-21 PVC pipe meeting ASTM D-2241.
2. All building drain sewer lines from five feet (5') outside the building to the property line shall be constructed of either class 52 ductile iron pipe ASA specification A21.51 with push on joints AWWA C-111, with polywrap or SDR26 PVC pipe meeting ASTM D-2241. No house sewer shall be less than four inches (4") in diameter, unless otherwise authorized in writing by the village engineer and/or the community development director.
3. All building drain sewer lines from five feet (5') outside the building into the building shall be constructed of a minimum six inch (6") diameter service weight cast iron pipe when the service enters the building below the foundation and footing. When the sewer service pipe enters the building above the footing and through the foundation, a minimum six inch (6") diameter schedule 40 PVC pipe may be used.
4. No building sewer for a commercial building shall be less than six inches (6") in diameter. Whenever a building sewer is within fifty feet (50') of an existing well, the SDR 18 PVC pipe meeting ASTM D-2241, or class 52 ductile iron pipe must be used for the building sewers. Joints and connections shall be gastight and watertight and shall be installed as follows:
(B) Laying Pipe: Unless otherwise authorized, all building sewers shall have a grade of not less than one-eighth inch (1/8") per foot. A grade of one-fourth inch (1/4") per foot shall be used wherever practical. Pipe laying will be permitted only in dry trenches with stable bottoms.
(C) Excavations And Backfilling: All excavations shall be open trench work unless otherwise authorized or required by the community development director. Backfilling shall not be done until final inspection is made by the community development director.
1. The foundation in the trench shall be formed to prevent any subsequent settlement of the pipeline.
2. If the materials encountered at the trench bottom are unsuitable for pipe bedding, such materials shall be removed and this trench bottom brought back to four inches (4") below grade with selected crushed stone material, or a concrete cradle, placed as necessary to provide adequate bedding for the pipe.
3. The trench shall be excavated to four inches (4") below grade and brought back to the proper grade with crushed stone compacted so as to provide a firm foundation and uniform support for the house sewer line. The crushed stone bedding shall be carried up to the centerline of the pipe for the full width of the trench and thoroughly compacted in place. For PVC pipe, crushed stone shall be placed around the entire pipe, and four inches (4") over the pipe.
4. Backfilling from the centerline of the pipe to the ground surface shall be placed in layers and solidly tamped or packed up to the original surface of the ground, except that crushed stone fill shall be used under all sidewalks, driveways and paved streets.
5. All excavation shall be adequately guarded per village requirements or the FHWA "Manual On Uniform Traffic Control Devices" standards 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 village prior to the release of any cash bonds or other guarantees.
(D) Connections: The connection of the building sewer to the sewer main shall be made at the connection designated for that property, and if no properly located connection point is available, the owner shall install a connection in the sewer main at his expense, and of a location, type and method as specified by the village engineer or community development director.
(E) Rainwater Leads: Roof leaders, surface drains and ground water drains shall not be connected to the sanitary sewers. The possible presence of such connections shall constitute grounds for inspection of premises, places or buildings where sewer service is supplied, as provided in section 7-6-10 of this chapter.
(F) Service Station Drains: Automobile service station floor drains shall be equipped with interceptors which shall prevent the discharge into the drainage system of mud, sand, gasoline, oil and other materials likely to clog the drainage system. Such interceptors shall be maintained by the owner at his own expense, in continuously efficient operation.
(G) Various Tests For Sanitary Sewers: All sanitary sewers hereafter constructed within the village in any subdivision excepting single-family residential service connection, shall be subject to infiltration or exfiltration tests and televising at the owner's expense to meet the requirements of the village engineer or community development director. The owners shall also pay the expense of a representative of the village witnessing said tests. (Ord. 95-2684, 9-5-1995)
Notes
| 1 | 1. See section 7-7-5 of this title. |