Division 20 - Clean Water Commission
- Chapter 1 - [Rescinded] (§§ 20-1.010 — 20-1.020)
- Chapter 2 - Definitions (§ 20-2.010)
- Chapter 3 - Enforcement (§ 20-3.010)
- Chapter 4 - Grants and Loans (§§ 20-4.010 — 20-4.070)
- Chapter 5 - Emergencies (§§ 20-5.010 — 20-5.020)
- Chapter 6 - Permits (§§ 20-6.010 — 20-6.300)
- Chapter 7 - Water Quality (§§ 20-7.010 — 20-7.050)
- Chapter 8 - Minimum Design Standards (§§ 20-8.010 — 20-8.500)
- Chapter 9 - Treatment Plant Operations (§§ 20-9.010 — 20-9.040)
- Chapter 10 - Underground Storage Tanks - Technical Regulations (§§ 20-10.010 — 20-10.074)
- Chapter 11 - Underground Storage Tanks - Financial Responsibility (§§ 20-11.090 — 20-11.115)
- Chapter 12 - State Underground Storage Tank Insurance Fund (§§ 20-12.010 — 20-12.080)
- Chapter 13 - State Underground Storage Tanks - Administrative Penalties (§ 20-13.080)
- Chapter 14 - Concentrated Animal Feeding Operation Waste Management System Operations (§§ 20-14.010 — 20-14.030)
- Chapter 15 - Aboveground Storage Tanks-Release Response (§§ 20-15.010 — 20-15.030)