Approved Onsite Wastewater Treatment Products and Product Approval

Tanks and Distribution Units

Only those tank sizes and configurations that are listed on the “List of Approved Tanks and Distribution Units” are approved for installation currently.

• List of approved Tanks and Distribution Units PDF
• How to use the list of approved Tanks and Distribution Units PDF
   
• Application for Material Plan Review PDF
• Application and checklist for Septic Tank Approval- Dosing Tank PDF
• Application and checklist for Septic Tank Approval - Single-Chamber Tank PDF
• Application and checklist for Septic Tank Approval - Two-Chamber Tank PDF

The Department will conduct one review per tank application to determine compliance with the applicable rules. After review, tank plans and installation manuals requiring correction will be returned to the manufacturer and engineer. All application materials returned for correction must be re-submitted to the Department within 60 days of notification. If there is a failure to correct all noted deficiencies and/or the information requested is not submitted within 60 days it will result in a new application fee assessment to continue the approval process.

Drainfield Products

Infiltrator

• Installation Guide PDF

EZ Flow

• Installation Guide PDF

ADS

• Installation Guide PDF
• ARC 18 Installation Guide PDF

Alternative Treatment Technology (ATT) Products

• List of approved Alternative Treatment Technology (ATT) products
   
• Application for approval of Alternative Treatment Technology (ATT) products PDF
• Checklist for approval of Alternative Treatment Technology (ATT) products PDF

-- IMPORTANT:  Time of Transfer Inspections --

After January 1, 2006, time of transfer inspections will be required for all Alternative Treatment Technologies (ATT) products. Time of sale inspections are not required for all onsite systems. However, DEQ and the Oregon Property Buyers Advisory developed by the Oregon Real Estate Agency recommends inspecting all onsite systems. Below is a copy of the rule, information on who can do an inspection, and the DEQ inspection form:

• Time of Transfer Evaluation Rules (OAR 340-071-0131) PDF
• Who can do Time of Transfer Evaluations? PDF
• Time of Transfer Evaluation form PDF

Add-on Treatment Units

Lombardo Associates, Inc.

• DEQ Letter of Approval PDF
• Approved Drawings PDF
• Service Contract PDF
• Installation Instructions PDF
• Operation and Maintenance Standards PDF

New or Innovative Technologies, Materials, or Designs for Onsite Systems

• Application for New or Innovative Technologies, Materials, or Designs for Onsite Systems PDF

[print version]