An official website of the State of Oregon
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These guides provide information to help you navigate the process of applying for different types of permits related to onsite wastewater system activities. After you complete an "Application for Onsite Sewage Treatment System" it is important that you send the application to the appropriate county or DEQ office. Find the right contact office by looking up your county on the Office and Agent List.
Sewage disposal service business license forms
Application for approval of Alternative Treatment Technology (ATT) products
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