(A) (1) The design of a private sewage disposal system shall take into consideration location with respect to wells or other sources of water supply, topography, existing private sewage disposal systems on adjacent properties, water table, soil characteristic, available area, expected volume of domestic sewage, and shall comply with all applicable county regulations as well as those of the State Department of Public Health.
(2) The County Board may prohibit installation of sewage disposal facilities requiring soil absorptions systems where such systems will not function due to high groundwater, flooding or unsuitable soil characteristics. The County Board shall require that the subdivider note on the face of the plat and in any deed of conveyance that soil absorption fields are prohibit in designated areas. All homes utilizing on-site aeration waste disposal systems are required to have a maintenance contract with the aeration system inspected and serviced by a company or individual licensed by the state to install or service aerobic treatment plants.
(B) Any subdivision lots with private sewage disposal systems need to meet the following criteria:
(1) All subdivision plots to be approved after today’s date must conform to of the Private Sewage Disposal Code, 77 Ill. Admin. Code § 905.55, and the Private Sewage Disposal Licensing Act, 255 ILCS 225/;
(2) When designing a subsurface seepage system, the absorption capacity of the soil shall be determined by this division (B)(2) as follows:
(a) Soil investigations. Soil investigations shall be conducted in the following manner:
1. Determination of soil characteristics on sites proposed for development with private sewage disposal systems shall be based on soil boring data collected by a soil classifier or a state licensed professional engineer; and
2. Minimum lot size shall be one acre.
(b) Permits. The following addition of regulations shall apply to permits. Permits for private sewage disposal systems as described in the Private Sewage Disposal Licensing Act and Code.
(3) Where soil investigations show suitable conditions, only septic tanks with subsurface seepage fields installed in accordance with the State Department of Public Health Private Sewage Disposal Licensing Act and Code may be permitted; and
(4) Where soil investigations show unsuitable conditions to utilize subsurface seepage systems, and if an aerobic treatment plant is installed, the aerobic unit shall be followed by 200 square feet of subsurface absorption field per bedroom served.
(Ord. passed 10-14-2003; Ord. passed 11-10-2003; Ord. passed 11-14-2004; Ord. passed 9-11-2007)