Levels of Water Operator Licensure
Water systems are classified at levels I to IV in both treatment and distribution categories based on system complexity and the population served. Operators of these systems must show competency by…
- Successfully completing examinations in both treatment and distribution categories and
- Accruing the appropriate experience.
The Very Small Water System (VSWS) classification covers Operator requirements in both treatment and distribution for systems with a population of less than 500. Guidance on Becoming a VSWS Operator (PDF)
Characteristics of a Water Operator
A Water Operator must possess the knowledge, skills, ability and judgment to assure safe drinking water. This is measured via examination as well as through reviews of education and experience.
Education & Experience
Licensed Water Operators must have a high school diploma or GED. Experience is based on work in a public water system as well as credit for related professions. The Board offers Operator-in-Training (OIT) license status for persons that have successfully passed examinations but have not achieved the required experience. Holding an OIT license shows employers or prospective employers that you demonstrate capability and interest in the profession.
Operator Experience Requirements
License Classification: Required Experience
- Very Small Water System (VSWS): 6 Months
- Class I: One Year
- Class II: Two Years
- Class III: Three Years
- Class IV: Four years
Click here to view the Policy for Evaluating Experience to Qualify for Level of Operator Licenses (PDF)
Examinations
Examinations for Water Operator licensure are offered by the Association of Boards of Certification (ABC). These standardized exams are nationally-based, multiple choice, validated, and reviewed. The Water Operators' Board urges Operators to become subject matter experts through ongoing education and welcomes participation in the exam development process.
Exams are computer-based, offered at a designated testing center. Traditional paper exams are also available by speciasl request. Exams do not need to be taken in the sequential order (passing lower levels and working one's way up); instead, they can be taken in a direct process (take one exam at the desired level of licensure).
Important: Passing the exam does not automatically result in licensure. After successfully taking the exam, candidate Water Operators must apply for their licenses through the Drinking Water Program. (See the 'Licensure' section below.)
Note: Exam results are valid for one calendar year from the exam date.
Licensure
Once a candidate Operator has passed the exam, an application for licensure (PDF) must be submitted to the DWP prior to assuming Operator duties at a public water system. An Operator's first license is the initial license. This may be a license in either - or both - treatment and distribution disciplines. Candidates may apply for an upgraded license after passing an exam that corresponds with the appropriate license classification.
Reciprocity
Water Operators certified or licensed by other State or Provincial certification authorities most often are recognized by the State of Maine. A candidate's education and experience are taken into consideration when determining reciprocity. Licenses or certificates from states with examination requirements similar to Maine's may not require re-examination. Candidates applying for licensure through reciprocity should still complete and submit an application for licensure.
Training and Professional Development
License holders must earn continuing education credits for license renewal. The number of training contact hours (TCHs) required for license renewal depends on the classification of the license. Operator training is available in a variety of programs. Self-study programs are also available. Training topics must be relevant to the treatment or distribution licenses held.
Learn more about Water Operators' training and professional development.
For More Information
To learn more or for assistance, contact Licensing Clerk Tina Lemieux: Email DWPlicensing.dhhs@Maine.gov or phone (207) 287-5699.