For a single person dwelling
(905.140 a) General. Holding tanks are approved for private sewage disposal only under the following circumstances:
1) To serve a seasonal use, single family residence, such as a cabin used only on weekends, short vacations, and other similar situations.
2) As a temporary measure while awaiting the availability of a municipal sewer extension. This temporary condition shall not exceed 1 year in length.
3) As a sanitary dumping station to receive the discharge from holding facilities on recreational vehicles.
4) To receive the discharge from fixtures or drains that receive waste products such as automotive grease, oils, solvents and chemicals that are not allowed to be discharged into a private sewage disposal system. These waste products shall be handled according to rules for the disposal of oil, gas and grease promulgated under the Environmental Protection Act, or according to 35 Ill. Adm. Code Subtitle G, or shall be taken to an oil and gas reclamation center. Note: Also see Illinois Plumbing Code (77 Ill. Adm. Code 890).)