Septic Tank Inspectors in Illinois

Cities in Illinois

Illinois Septic Regulations

Illinois septic systems are regulated by the Illinois Department of Public Health (IDPH) through the Private Sewage Disposal Licensing Act and Code. Permits are required for all new installations, repairs, and modifications of private sewage disposal systems. Time-of-transfer inspections are not mandated statewide, though some counties may have local requirements.

• Septic permits are issued by local health departments under IDPH authority and require a site evaluation and soil analysis.
• Illinois requires licensed private sewage disposal system installers and pumpers for all installations and maintenance.
• The Illinois Private Sewage Disposal Code sets minimum setback distances from water wells, property lines, and water bodies.
• Illinois does not mandate a statewide time-of-transfer septic inspection, though some local jurisdictions may require one.
• Systems must be designed by a licensed environmental health professional or qualified soil tester when required by the local health department.
• Local health departments maintain records of permitted systems — contact the county health department for records before purchasing property.

Source: Illinois Department of Public Health (IDPH)