Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 370 - ILLINOIS RECOMMENDED STANDARDS FOR SEWAGE WORKS
Subpart I - BIOLOGICAL TREATMENT
- Section 370.900 - Trickling Filters
- Section 370.910 - Rotating Biological Contactors (Repealed)
- Section 370.915 - Rotating Biological Contactors
- Section 370.920 - Activated Sludge
- Section 370.930 - Waste Stabilization Ponds and Aerated Lagoons
- Section 370.940 - Intermittent Sand Filtration for Secondary Treatment
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