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Washington Administrative Code (Last Updated: November 23, 2016) |
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Title 372. Ecology, Department of (Water Pollution) |
| Chapter 372-36. Columbia Basin irrigation area—Sewage and waste. |
| Chapter 372-52. Water districts requests for approvals and certifications of necessity to operate sewer districts. |
| Chapter 372-68. Water pollution control and abatement plans for sewage drainage basins. |