(A) Sanitary sewers.
(1) Sanitary sewers shall be installed to comply with specifications established by the engineer for the village and shall be connected to the sanitary disposal system of the village if reasonably accessible; otherwise, to a specially constructed sanitary sewage disposal plant in accordance with the specifications relating thereto, which have been approved by the Board of Trustees and which are on file with the engineer for the village. A subdivision plat shall in no case be approved which shall be dependent upon individual septic tanks.
(2) Sanitary sewers and sanitary sewer services shall be installed to serve all properties in the subdivision, and where possible, all sanitary sewers shall be designed and installed to drain toward a primary interceptor sewer.
(3) Sewers may be placed only in public rights-of-way or in easements.
(4) Sewer mains, with house service stubs to each lot, shall be constructed prior to the construction of street pavements. Service stubs shall be installed at the center line of each lot and shall extend to within one foot of the front lot line. House stubs shall be six inch minimum and located by dimensioning from the nearest downstream manhole on the as-built drawings.
(5) At the direction of the Board of Trustees, the developer may be required to install sanitary sewer mains of larger capacity than necessary to serve the subdivision as delineated in the preliminary plat.
(6) All sanitary sewers 15 inches in diameter or less shall be PVC solid wall pipe ASTM D 3034 (SDR 35), or other suitable material as approved by the Village Engineer. The village may, at its discretion, require specific materials as appropriate for site conditions. All sanitary sewers 18 inches in diameter or larger shall be of reinforced concrete pipe conforming to the ASTM designation C-76 with O-Ring rubber gaskets per ASTM Designation C-443, or other suitable material as approved by the Village Engineer.
(7) All sewers must be constructed on straight lines between manholes with at least one manhole every 300 feet.
(B) Storm Sewers.
(1) Adequate provisions shall be made in all subdivisions for the proper drainage of storm water. The design capacity shall be based upon the Peotone area ten year frequency storm. The design of the drainage system within the development shall anticipate and provide capacity for other drainage from naturally tributary land. Such design shall provide adequate capacity for transmitting such drainage from the other tributary areas on the basis of the ultimate development of such other tributary areas, but such drainage system need not make provision for the retention of other tributary areas, except as may be required by the Board of Trustees to implement long range flood control programs.
(2) Open ditches shall be prohibited, except where they may be required in state or county rights-of-way, or as may otherwise be approved by the Village Board of Trustees.
(3) Any outfall storm sewer that drains into an existing open ditch or natural water course shall have a concrete headwall and a concrete apron installed in accordance with village standards and specifications.
(4) Drain inlets shall be placed in the street gutters at all intersections and elsewhere as required by the terrain, but shall not be spaced more than 400 feet apart along the gutter.
(5) Storm water shall not be directed into the sanitary sewer system, and no connections between the storm and sanitary sewer systems will be permitted at any time before, during or after construction.
(6) All storm sewers within the public right-of-way, parking areas, driveways, and any paved areas shall be reinforced concrete pipe (RCP) conforming to the ASTM Designation C-76 with joints of mastic sealer or O-Ring rubber gaskets per ASTM designation C-443, or other suitable material as approved by the Village Engineer, and shall be a minimum of 12 inches in diameter. Storm sewers used in the rear or sides of lots shall be RCP ASTM C-76, PVC solid wall pipe ASTM D 3034 (SDR 35), or other suitable material as approved by the Village Engineer, and shall be a minimum of 12 inches in diameter.
(7) Intercepting storm water structures shall be provided at intervals not in excess of 400 feet, as measured along the gutter line. The storm water drainage system shall be separate and independent of the sanitary sewer system. Concrete headwalls or flared end sections shall be used for inlets and outlets to storm sewers and shall be installed in accordance with the State of Illinois, Department of Transportation standards and specifications.
('70 Code, § 8.1.20A.) (Ord. 79-08, passed 11-26-79)