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Colorado Environmental Certification and Testing, Incorporated (CECTI) was established as a non-profit organization on January 17, 2001. Its formation was the culmination of the efforts of three parent organizations: the Rocky Mountain Section of the American Water Works Association (RMSAWWA), the Rocky Mountain Water Environment Association (RMWEA), and the Colorado Rural Water Association (CRWA). The non-profit was formed with the sole purpose of administering the water and wastewater treatment facilities operators certification program for the State of Colorado.

Each of the parent organizations appointed three persons to sit on the CECTI board for a three-year term. The terms are staggered to minimize the impact of turnover and to maintain continuity at terms end. The collective background of the current board includes experience in operations, maintenance, management, engineering and regulatory oversight. The Board members have the perspective of both large and small systems.

CECTI entered into an agreement with the State of Colorado via the Water and Wastewater Facility Operators Certification Board (WWFOCB) on February 12, 2001 to administer the treatment plant operators' certification program beginning with the fall 2001 exam cycle.

2170 S Parker Road # 290
Denver, CO 80231
Same Phone #: 303.394.8994
Same Fax #: 303.394.3450

When paying by check or credit card, please be aware of the following: checks should be made payable to OCPO; Only one check per operator, per application and/or certificate request. Checks returned for insufficient funds and/or credit card disputes will be subjected to an additional administration fee.

Test results: Posted approximately 4-5 weeks from test date. Individual results are mailed approximately 5-6 weeks.

Operators Certification Program Office
2170 S Parker Road # 290
Denver, Colorado 80231
Phone: (303) 394-8994
FAX: (303) 394-3450

To view information on the following, please go to

  • Colorado Operators Certification Statute
  • Expense Reimbursement Grant for Operator Certification Water Treatment
  • Colorado Plant Operator Certification Information
  • Colorado Operators Certification Regulation (As revised effective April 2006)
  • Exam Instructions and Application for Treatment Plant Operators
    • TU Application Form
  • Recommended Study Material Regarding Preparation for Water, Industrial Wastewater and Wastewater Treatment Certification
  • Examinations.
  • WWFOCB Meetings
    • Upcoming Meeting Agenda
    • Hearing Notices
  • WWFOCB Meeting Minutes