Median Pay by Area
- Northeast
- $39.32 an hour
- Thompson–Okanagan
- $38.40 an hour
- Cariboo
- $38.04 an hour
- Lower Mainland–Southwest
- $37.49 an hour
- Kootenay
- $37.34 an hour
- Vancouver Island and Coast
- $36.99 an hour
- North Coast
- $36.34 an hour
British Columbia wastewater operators
The steps from no certification to Wastewater Treatment Level I in British Columbia, how to apply for and write the exam with the Environmental Operators Certification Program (EOCP), how to keep your certification and what operators earn. Every requirement links to EOCP or the BC regulation it follows.
EOCP makes the final eligibility determination. Check with EOCP before you apply.
Why it matters
Under BC's Municipal Wastewater Regulation, a discharger must not discharge unless the wastewater facility is operated and maintained by people who are certified under the EOCP and have the education, experience and qualifications set out in the facility's operating plan. The facility itself must also be classified under the EOCP.
Since the regulation took effect in 2012, wastewater collection operators must also be certified, and a facility owner can no longer name an uncertified person as capable of running a plant instead.
EOCP says everyone doing operating duties at a water or wastewater facility must be certified at a level that fits their responsibilities and the facility they operate.
EOCP certifies Wastewater Treatment and Wastewater Collection operators at Level I, II, III and IV. Facilities are classified at matching levels, from Level I to Level IV.
Operator-in-Training (OIT) is an optional entry-level certification. Since January 1, 2018 there is one OIT exam and certificate covering water treatment, water distribution, wastewater collection and wastewater treatment.
Small Wastewater System certification is for systems serving 500 people or fewer. It is recognized only at small systems. EOCP also offers Multi-Utility Level I and II for operators working across two or more utilities in smaller communities.
Step 1
To apply for certification with EOCP, you must be employed, or have an employment offer letter, with an employer in BC or Yukon.
Operator-in-Training through Level IV need proof of high school: an official BC high school diploma or transcript, a BC Adult Graduation Diploma, a Red Seal Certificate of Qualification, a post-secondary diploma that requires high school, or the Canadian Adult Education Credential (which replaced the GED in 2024).
Wastewater Treatment Level I needs 12 months (1,800 hours) of operating experience at a Class I or higher facility.
Level III and IV also need post-secondary education or CEUs and 2 years (3,000 hours) of Direct Responsible Charge, meaning time in a role with active control and the mandate to make operating decisions at a Level II or higher facility.
Step 2
Operator-in-Training: high school plus 3 months (at least 500 hours) at a Class I or higher facility, or completion of 90 hours (9.0 CEUs) in an approved basic operator training course.
EOCP says the OIT certificate should be applied for within 3 months of starting work at a water or wastewater facility.
Small Wastewater System: 1.2 CEUs (12 hours) in an approved operator training course and at least 50 hours of hands-on operating experience. High school is not required for small systems certification.
Step 3
EOCP suggests studying WPI's Need-to-Know Criteria for your discipline and level, trying the computerized exam demo and reviewing WPI's sample exam questions.
EOCP's exam preparation page also has sample math questions, a guide to the EOCP and ABC formulas with solved examples in US and metric units, Math for Operators for Wastewater Level I and II, and a sample OIT exam.
WPI lists approved study references, including Operation of Wastewater Treatment Plants, Volumes I and II, from the Sacramento State Office of Water Programs, and Canadian provincial and territorial regulations.
Step 4
Apply through your profile in EOCP's online system (the CRM): register or log in, add a relationship to your employer or facility, then choose Action and Apply for Exam. Exam dates and locations are listed there under Career Management.
Attach your proof of high school, a job description and the Supervisor Verification Form, which every exam application needs. Level III and IV applications also need the Direct Responsible Charge form.
EOCP's Program Guide asks for applications at least three weeks before the exam session. EOCP reviews each application and tells you whether you are eligible to write.
EOCP lists a $30 application fee and a $150 exam fee for Level I to IV ($100 for OIT, $50 for Small Wastewater System), plus GST. Cancelling, not showing up or rescheduling less than seven days before the exam costs $75.
Step 5
Once you pass, keep your certification by paying annual dues and meeting EOCP's continuing education requirement. EOCP lists annual dues of $179 for Level I to IV, $99 for OIT and $70 for Small Wastewater System only, plus GST.
Level I to IV operators need 24 hours (2.4 CEUs) of continuing education every 2-year reporting period; Small System operators need 12 hours (1.2 CEUs). OIT certificates, and operators newly certified during a reporting period, are exempt.
A CEU is ten contact hours of organized continuing education with responsible sponsorship, capable direction and qualified instruction, relevant to your certificate. Examples include operator courses and workshops, disinfection, safety training such as WHMIS and confined space, first aid, relevant lab courses and supplier training. EOCP-recognized courses are listed in the CRM.
EOCP does not award CEUs for writing exams or for self-study. You cannot earn credit for the same course twice in one 2-year period, and each course counts in one period only.
Holding more than one certificate needs one set of hours, with at least a quarter of the requirement in each certificate's area. Keep course completion certificates or transcripts; without the hours or dues, your status shows Not Certified until you catch up.
Exam day
Most EOCP exams were developed by the Association of Boards of Certification (ABC) with the Canadian certification boards. ABC Testing is now a Water Professionals International (WPI) service. The exams use both metric and US units, and a formula sheet is provided.
Wastewater exams come with the ABC Canadian Formula/Conversion Table for Wastewater Treatment, Industrial, Collection and Laboratory Exams, along with EOCP's conversion chart and formula sheets.
Level I to IV exams have 110 multiple-choice questions, including 10 unscored trial questions; the OIT exam has 100. The passing grade is 70%. If you score below 70%, you can rewrite 30 days later.
The exam is closed book and computer-based. Bring valid government photo ID, such as a driver's licence, BC Services Card or passport. Your own books, notes and programmable calculators are not allowed.
Operator Master has free practice questions with an explanation after every answer and a timed full-length practice exam. Its math help is built on the US WPI formula table, not the ABC Canadian table handed out at EOCP exams, so check your math against the Canadian table. It is an independent study tool, not the official exam.
Pay
The median wage for water and waste treatment plant operators (NOC 92101) in British Columbia was $36.80 an hour in Canadian dollars (reference period 2023–2024), compared with $36.06 across Canada. Job Bank's low wage was $28.80 and its high wage $45.07 an hour.
These Job Bank figures, updated November 19, 2025, cover water and wastewater plant operators together, at every level. Regional figures are for 2024 (Thompson–Okanagan 2023–2024); Job Bank publishes none for the Nechako region.
Moving up
These are EOCP's Operator-in-Training to Level IV requirements. Each needs proof of high school; Level II to IV also need the certificate one level below, and the facility class counts. EOCP's Program Guide explains when training or education can stand in for experience.
From another province
Operators certified in any other Canadian province or territory except Quebec are granted EOCP certification at the level they hold. You apply to EOCP while working in BC.
EOCP lists a $299 reciprocity application fee for certified operators from another province, plus GST.