Septic Systems General Information

Are you planning to build a private sewage or septic system? It's smart to know the rules first.

It can save you time, money, and help extend the life of your disposal system.

This page includes the information you need to build and stay in compliance. If you have questions or would like guidance, contact the Environmental Health division at 309-888-5482.

Information on obtaining permits for a private sewage disposal system can be found in the Statutes, Rules, and Ordinances section.

I Need to Have a Sewage Disposal Plan Approved or Inspected

Get to know these documents:

• Septic Systems: An Overview
• Policy on Verification of Legal Private Sewage Disposal Systems

What Happens in the Case of EPA-Regulated Sewage Treatment System Violations

The information you need is on these reports:

• EPA Sewage Discharge Quality Report
• EPA Notice of Final Decision Regarding Surface Discharge Systems (PDF)
• EPA Surface Discharge Permit (NPDES permit)