Septic tank tile systems shall be used only for domestic or similar organic waste, where soil conditions are suitable and sewers tributary to treatment works are not available.
Specific design information is contained in the document titled "Private Sewage Disposal Licensing Act & Code", which can be obtained from:
State of Illinois
Department of Public Health
Springfield, Illinois 62706.
Ill. Admin. Code tit. 35, § 370.750
Amended at 21 Ill. Reg. 12444, effective August 28, 1997