We regulate the installation, repair, and maintenance of septic systems on homes and businesses not served by community sewer systems. Septic and onsite wastewater treatment systems must be designed, installed, and maintained to protect:
- the groundwater aquifer and surface waters from pathogen and nitrogen contamination
- public health by properly treating and disposing of disease-causing human waste
Forms
- Credit Card Authorization Form
- Public Records Request
- Recommended Standards and Guidelines
- Septic Program Fees
Soil Onsite Evaluations
- Minimum Separation Distances Setback Table
- Notice Authorizing Representative
- Onsite Wastewater Treatment Application
- Plot Plan Requirement Form: Soil Site Evaluation
- Soil Site Evaluation Guide
Connection/Reconnection
- Authorization Notice Process
- Maintenance Inspection Report
- Minimum Separation Distances Setback Table
- Notice Authorizing Representative
- Onsite Wastewater Treatment Application
- Plot Plan Requirements: Septic Installation
Change in Use/Increased Flow
- Authorization Notice Process
- Minimum Separation Distances Setback Table
- Maintenance Inspection Report
- Notice Authorizing Representative
- Onsite Wastewater Treatment Application
- Plot Plan Requirements: Septic Installation
Failing/Malfunctioning Septic Systems
- Guide for Septic Tank Replacement
- Minimum Separation Distances Setback Table
- Notice Authorizing Representative
- Onsite Wastewater Treatment Application
- Plot Plan Requirements: Septic Installation
- Sewer Availability Worksheet
Construction Permits
- Alternative Treatment Technologies (ATT) Plans Submittal
- As-Built Form
- Certification of Existing System Decommissioning
- DEQ Land Use Compatibility Statement
- Ground Water Interceptor
- Installed Materials List
- Minimum Separation Distances Setback Table
- Notice Authorizing Representative
- Onsite Wastewater Treatment Application
- Plot Plan Requirements: Septic Installation
- Requesting a Septic System Inspection
- Sand filter Plans Submittal
- Stakeout Procedure
Hardships
- Authorization Notice Process
- Maintenance Inspection Report
- Minimum Separation Distances Setback Table
- Notice Authorizing Representative
- Onsite Wastewater Treatment Application
- Plot Plan Requirements: Septic Installation
Other Forms
- CMAP
- Deck Setback Guidance
- DEQ Annual Operation and Maintenance Report Form
- Different Owner Easement Form 5-2013
- Existing System Evaluation Report
- Existing System Verification
- Same Owner Easement Form 11-2012
- Same Owner Easement Release Form 2-2007
- Same Owner Easement Release Instructions 2-2007
- Time of Transfer Evaluation Form for Existing Individual Onsite Waste Water Systems
- Watermaster Information
- Winter Recheck Request Process
Resources
- DEQ Certified Maintenance Providers and Installers Lists
- EnergyTrust of Oregon Cash Incentive for Alternative On-Site Wastewater Treatment Systems
- EPA SepticSmart
- Homeowner's Guide to Evaluating Service Contracts
- On-Site System Installers and Pumpers Database
- Section 504 Home Repair Loans and Grants
- Septic Consultants