(A) This chapter shall require persons/corporations who subdivide property to furnish information concerning lot sizes, soil topography maps and location of water supplies. Changes in a proposed subdivision plat must also be submitted. This information is needed to ascertain that each lot of said proposed subdivision will be able to support the installation and subsequent use of an approved private sewage disposal system as defined in 225 ILCS 225, the Private Sewage Disposal Licensing Act and the code promulgated thereunder by the State Department of Public Health, and any subsequent amendments or revisions thereto, herein referred to as the Sewage Code.
(B) Upon receipt of the plat, the Health Department will review the plat within 15 working days. The developer, County Plat Officer and the County Highway Engineer will be advised of the results of the review in writing. If the review determines the proposed plat does not adequately address the private sewage disposal system, a detailed explanation of the deficient areas will be provided. To facilitate the review of the plat, the following information must be submitted:
(1) Proposed plat;
(2) Subdivision covenants;
(3) A statement of the availability of public sewer service, 77 Ill. Adm. Code § 905.20(e) of the Sewage Code, a statement describing the availability of a public water supply and, if available, the location of the water mains;
(4) The location of existing and proposed drainage tiles, natural drainage areas, ponds, lakes, easements, wells or abandoned wells; and
(5) A statement on the potential for flooding based on field observations and historical review, 77 Ill. Adm. Code § 905.20(j)(1) of the Sewage Code.
(C) (1) For every private surface discharging sewage system, a detailed description of the proposed effluent disposal method must be submitted verifying disposal in accordance with 77 Ill. Adm. Code § 905.110 of the Private Sewage Disposal Code.
(2) If it is proposed to dispose of the effluent to the ground surface, then the method to be used to prevent the effluent from ponding or creating a nuisance condition must be described. Further, if it is proposed to discharge the effluent to a common collector and the common collector will carry a flow in excess of 1,500 gallons per day, then the developer must obtain a construction permit for the common collector and a National Pollutant Discharge Elimination System permit from the State Environmental Protection Agency and submit copies of such permits to the Department.
(D) Should a developer fail to submit the information necessary for this review, the County Plat Officer and the County Highway Engineer will be so advised.
(E) (1) Minimum lot size for a residential structure requiring a private sewage disposal system, shall be one acre in size excluding road easements or, as established by Ch. 151, whichever is greater. A larger area may be required for such lots if, in the opinion of the Health Department, there are factors of drainage, soil conditions or other conditions, such as surface discharges from private sewage disposal systems which may cause health problems or nuisance conditions.
(2) If a subsurface seepage field is proposed, a soil investigation must be performed by a soil classifier or a state licensed professional engineer. The soil investigation shall meet the requirements of the Sewage Code 77 Ill. Adm. Code § 905.55, Part A(1) and (2).
(3) Lots platted and on record before the effective date of the ordinance from which the provisions of this chapter derive, for which sewage plans were approved, will receive a variance from this section. A smaller lot may be requested if a community sewage collection system is proposed and approved by the State Environmental Protection Agency. A variance may be granted if, in the opinion of the Health Department, it is impractical or impossible to comply with the Sewage Code and an approved system can be installed that does not create health hazards or nuisance conditions.
(F) (1) A private sewage disposal system that produces a surface discharge, which may leave the home owner’s property, shall first enter an effluent receiving system of no less than 150 square feet per bedroom or to the maximum extent practicable to minimize off lot discharges from the private sewage system.
(2) The effluent receiving system shall be installed so, when full, the effluent discharged will bypass the effluent receiving system and enter the chlorination unit before discharging to the ground surface.
(G) An effluent reduction system will consist of:
(1) A trench with a depth of 12 to 24 inches;
(2) A trench width of 24 to 36 inches; and
(3) A four-inch perforated pipe with a gravel size of three-fourths to four inches, graveless pipe or a chambered system, size installed in accordance with the Sewage Code per 77 Ill. Adm. Code § 905.55. Additional technology will be evaluated in order to achieve compliance with the Sewage Code for flow reduction methods on surface discharging private sewage systems.
(H) The final discharge point of the private sewage systems that produce a surface discharge must be a minimum distance of 50 feet from property lines.
(Ord. 2006-01, passed 3-28-2006)