Forms and Guidelines

Application forms and guidelines for onsite wastewater systems

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

For projects other than those listed above and for commercial facilities, contact the DEQ Office/Agent that serves your county.

Product approval application forms and checklists

Tanks and distribution units

Application for Material Plan Review
Septic Tank Approval:

Dosing Tank Application - please contact the program for the application
Dosing Tank Checklist
Single-Chamber Tank Application - please contact the program for the application
Single-Chamber Tank Checklist
Two-Chamber Tank Application - please contact the program for the application
Two-Chamber Tank Checklist

Alternative Treatment Technology products

Application for approval of Alternative Treatment Technology (ATT) products

Additional forms

Notice Authorizing Representative
Annual Operation and Maintenance Report Form
Onsite Land Use Compatibility Statement (Onsite LUCS)
General Land Use Compatibility Statement (LUCS for WPCF Permits)
Existing System Evaluation Report Form