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DEQ Installer & Maintenance Provider Certification

The Oregon Department of Environmental Quality (DEQ) has contracted with Chemeketa to provide classes to fulfill required training and certification of Onsite System Installers and Maintenance Providers.

DEQ Installer & Maintenance Provider Trainings

Students who complete the 8-hour DEQ Installer class or the 16-hour DEQ Maintenance Provider class and pass the certification test (with a score of 70% or better), will be mailed a serial-numbered, laminated certification card.


See DEQ website for Installer criteria

Installers: under OAR 340.071.0650 a person who supervises or is responsible for construction or installation of onsite systems must be a certified and licensed installer unless the person is the permittee for construction or installation of the system or the permittee's regular employee.  

Note: Certified installers must obtain a license to conduct construction or installation of onsite systems.

Maintenance Providers 

See DEQ website for Maintenance Provider criteria

Maintenance Providers: under OAR 340.071.0650 a maintenance provider who inspects, maintains, or certifies or supervises maintenance of onsite systems using alternative treatment technologies, recirculating gravel filters, or sand filters must be certified as a maintenance provider and by the manufacturer of the system.


Classes are held at the Chemeketa Center for Business & Industry. See location and CCBI Directions.

  • Installer Certification Classes


    Directions for registering for DEQ Initial Installer Certification Course: 

    • Click on link to open.  If link does not open, copy and paste the link into your browser.
    • Fill out form to register and process your payment.  Print your receipt, as only a confirmation will be sent to your email.
    • At least 3 business days before your class, you will receive an email with class information and directions/parking.



    Monday, October 21, 2019

    Monday, November 18, 2019


    Check In:  8:00 am to 8:30 am 

    Class:  8:30 am to 5:30 pm

    Where:  Chemeketa Center for Business & Industry, Room 203

    Class Cost:  $295

    Please call 503.399.5181 to be put on a class contact list or approximately 30 days in advance of class to register.

  • Maintenance Operator Certification Classes

    Maintenance Operator


    Monday and Tuesday, October 28 and 29, 2019


    Check In:  8:00am to 8:30am 

    Class:  8:30 am to 5:30 pm

    Class Cost:  $525

    Please call 503.399.5181 to be put on a class contact list or approximately 30 days in advance of class to register.