(A) General.
(1) Except as otherwise provided herein, no residential, commercial or industrial subdivision, site plan or planned development shall be approved unless it is served by sanitary sewers connected to the village's sewer system.
(2) In the case of any structures, whether residential, commercial or industrial constructed prior to the adoption of this chapter and served by a septic system, the following shall apply:
(a) As soon as a public sanitary sewer main is contiguous to and available to service a structure or building on a septic system, the owner or owners must properly abandon the septic system and connect to the village's public sanitary sewer system within 1 year of the availability of the public sanitary sewer system. As used herein, a sewer main is contiguous to a building or structure if the main or the easement or right of way in which it is located is adjacent to, touches or runs across, through or under the lot, tract or parcel of land upon which the building or structure is located.
(b) All sanitary sewer systems which are installed in the public ways or in easements shall be deemed to be dedicated to the village upon, the village's approval and acceptance of the public improvements, as evidenced by action of the Village Board.
(B) Design. Sewer mains shall be of adequate size to serve the entire development and must be approved by the Village Engineer.
(1) General requirements.
(a) Sewer mains shall be designed according to the latest edition of the "Standard Specifications for Water and Sewer Main Construction in Illinois" or according to the Illinois Environmental Protection Agency's "Recommended Standards for Sewage Works." The more stringent requirements of either shall apply.
(b) Before commencing the sewer layout, the developer shall confer with the village to determine the required size and grades for any trunk sewers traversing the development.
(c) All sanitary sewers shall be constructed in accordance with the provisions of the latest edition of the "Standard Specifications for Water and Sewer Main Construction" in Illinois, as modified and/or more specifically defined in this section. In case of conflict, the following provisions of this section shall apply.
(2) Installation.
(a) The mains shall, in general, be installed in the street right-of-way or in an easement adjacent thereto. In no case shall mains be installed within 15 feet of a building.
(b) Sanitary sewers shall be extended to the edge of the development along public right-of-ways and at other points indicated by the Village Engineer.
(3) Size. The minimum size of mains shall be 8 inches, internal diameter.
(4) Sewer services. Sanitary sewer service laterals of a minimum of 6-inch internal diameter shall be provided for each lot, parcel, or tract prior to the construction of street pavements. Services shall extend to the property line.
(a) Service connection shall consist of a 1/8-inch sewer pipe bend set in the bell of the main wye or tee and the necessary lengths of the pipe with the terminus plugged.
(b) Service sewers shall have a minimum cover of 30 inches on private property and 48 inches in public right-of-ways.
(c) Two or more structures are not permitted to use a joint building service sewer.
(d) A minimum velocity of 2 ft./sec. shall be maintained.
(5) Sewer alignment. Alignment shall be straight between manholes and follow the layout of the streets.
(6) Manholes. Manholes shall be installed not more than 400 feet apart for sewers less than 18 inches in diameter and 500 feet for sewers 18 inches or more.
(a) Manhole diameter. Manhole diameter shall be 4 feet for sewer diameter of 21 inches and smaller, and 5 feet for sewer diameter larger than 21 inches.
(b) Inspection manholes. An inspection manhole or clean out having a minimum diameter of 48 inches is required for all commercial and industrial buildings.
1. The manhole shall be constructed on the building service sewer before it connects to the sewer main and, preferably, shall not be closer than 5 feet from the building.
2. There shall be no flow into the inspection manhole except the flow from the building for which the inspection manhole is intended.
(7) Lift stations. If a lift station is part of the engineering design, it shall be shown in the plan elevation, and the specifications for such lift station shall be submitted with engineering plans.
(a) Lift stations shall be of the wet well type with submersible pumps and shall conform in all respect to the standards established by the State of Illinois Environmental Protection Agency and the village.
(b) A permanent standby generator of adequate capacity shall be provided for use during power outages.
(c) An alarm shall be installed in the event of failure at the lift station.
(d) Lift stations and force mains are not desirable nor recommended and shall be used only after all other means of providing service have been determined to be impossible.
(8) Allowable materials shall be approved by the Village Engineer and shall be as follows:
(a) Sewer pipe and fittings shall be PVC sewer pipe, DR-35, meeting the requirements of ASTM Spec. 03034 and ASTM Spec. F-679. Joints shall be flexible elastomeric seals per ASTM Spec. 03212.
(b) Manholes shall be pre-cast concrete and in accordance with the appropriate provisions of Section 32 of the referenced "Standard Specifications for Water and Sewer Main Construction in Illinois." Frames and closed lids in roadways shall be Illinois Department of Transportation designation 'Type 1 Frame and Closed Lid."
(Ord. 1996-01, passed 2-13-1996; Am. Ord. 2007-15, passed 7-10-2007; Am. Ord. 2021-03, passed 3-9-2021) Penalty, see § 153.999