Title 372 - Ecology, Department of (Water Pollution)
- Chapter 372-36 - Columbia Basin irrigation area - Sewage and waste (§§ 372-36-010 — 372-36-130)
- Chapter 372-52 - Water districts requests for approvals and certifications of necessity to operate sewer districts (§§ 372-52-010 — 372-52-070)
- Chapter 372-68 - Water pollution control and abatement plans for sewage drainage basins (§§ 372-68-010 — 372-68-100)