No land shall be subdivided for residential use which is determined to be unsuitable for such use by the Plan Commission for reason of flooding, inadequate drainage, adverse soil or rock formation, unfavorable topography, or any other feature likely to be harmful to the health, safety, or welfare of the future residents of the proposed subdivision, certified survey map, or condominium or of the Village. In addition:
A. Lot area and elevation of the 100-year recurrence interval floodplain. Each lot served by public sanitary sewer facilities shall have not less than 50% of its required lot area at an elevation at least two feet above the elevation of the 100-year recurrence interval floodplain.
B. Lots one acre or less in area served by on-site sanitary sewage system. No lot one acre or less in area served by an on-site sanitary sewage disposal (septic tank) system shall include floodplains.
C. Lots more than one acre in area served by an on-site sewage system. All lots more than one acre in area served by an on-site sewage disposal (septic tank) system shall contain not less than 40,000 square feet of land which is above flood protection elevation, at least two feet above the elevation of the 100-year recurrence interval flood, or, where such data is not available, five feet above the maximum flood of record.
D. Lands made, altered, or filled with non-earth materials. Lands made, altered, or filled with non-earth materials within the preceding 20 years shall not be divided into building sites which are to be served by on-site soil absorption sanitary sewage disposal systems.
E. Lands made, altered, or filled with earth. Lands made, altered, or filled with earth within the preceding seven years shall not be divided into building sites which are to be served by on-site soil absorption sanitary sewage disposal systems.
F. Steep slopes. Each lot shall have a continuous area of at least 3,000 square feet which has ground slopes not exceeding 15%.
G. Must meet on-site sewage disposal system requirements. Each lot or dwelling unit shall be capable of meeting the requirements of the Wisconsin Department of Safety and Professional Services and Chapter
15 of the Kenosha County Code, titled "Sanitary Code and Private Sewage System Ordinance," regarding the construction of an on-site sewage disposal (septic tank) system.
H. Plan Commission determination of unsuitability of land. The Plan Commission, in applying the provisions of this section, shall, in writing, recite the particular facts upon which it bases its conclusion that the land is unsuitable to residential use and afford the subdivider an opportunity to present evidence in rebuttal to such finding of unsuitability if he so desires. Thereafter, the Plan Commission may affirm, modify, or withdraw its determination of unsuitability.