(A) All sewer plans and installations shall conform to the standards and specifications set forth in The Standard Specifications for Water and Sewer Main Construction in Illinois, as established by the Illinois Society of Professional Engineers.
(B) Sanitary sewer lines shall be installed to serve all properties in the subdivision except subdivisions where individual sewage disposal systems are permitted.
(C) Where sanitary sewer mains of larger capacity than necessary to serve the subdivision as delineated in the preliminary plan are required to serve the future growth in the vicinity of the subdivision, as determined by the City Council, the city shall then reimburse the subdivider for the difference in cost of the smaller size pipe and the larger size pipe; said larger size to be determined by the City Council.
(D) A storm sewer system shall be constructed throughout the entire subdivision to carry off water from all inlets and catch basins, and shall be connected to an adequate outfall. Such sewers shall provide for an extension to land lying within the upland drainage area, whether such land is within the subdivision or not. Storm sewers shall be designed by the rational method; and copies of the design computations shall be submitted with the plans. Inlets shall be provided so that surface water is not carried across or around any intersection, nor for a distance of more than 600 feet in the gutter. The storm water drainage system shall be separate and independent of the sanitary sewer system. Surface water drainage patterns shall be shown for each and every individual lot and block.
(1975 Code, § 34.20)