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To view MWWA"s Student Expectations for Attending Remote Training, please click here.

looking for training seminar?  click here to view our calendar and find classes scheduled near you

For more information on any of MWWA's Education Programs, please contact MWWA's Training Coordinator, Daniel Laprade.

information on obtaining a massachusetts drinking water license:


MWWA offers the Basic Treatment, Advanced Treatment and Distribution prerequisite courses required to sit for the Grade 2 or higher exams.  The courses are offered in the spring and fall and locations vary.  We advertise these courses on our homepage.  To view the complete list of Board of Certification approved prerequisite courses, click here.  

Looking to become a Drinking Water Operator? 

Review our information sheet on understanding the pathway to becoming an operator here.  

MA Board of Licensure: — We suggest that you navigate around this website for the board's policies, regulations, exam calendar and other important information. This is the website of the MA board that licenses all water system operators.

Board of Certification of Operators of Drinking Water Supply Facilities Policy for Training Requirements to Sit for Exams

Operator Exam Test Development:

Within the above web site, you will find a list of links including this web address: this website has information pertaining to study materials and exam topics. You will want to navigate around this website to become familiar with ABC's test topics and recommended review materials. Specifically you will want to look for the "Need-to-Know" Criteria and the Exam References and Study Materials.

Operator Exam Test Administrator:

The website that has the information on how to register is: Tests | PSI Online (  Click on the Candidates link on the home page and it will walk you through the steps to register for the exam. You will be able to take a computerized exam at PSI locations throughout New England.

Information on Submitting the License Application to the Board of Certification:

  • Worksheet for determining the appropriate type and grade of license that you wish to apply for.  Click here
  • Important reminders when completing the application.  Click here
  • Sample license applications. Click here

Exam Passing Rates - Historical Charts (produced by MWWA Education Committee)

Practice Web Test Demo:
You can purchase a practice Very Small System exam to see how questions are formatted.  Find more information here.  
Disclaimer: MWWA is providing this link for informational purposes only. Providing this link does not imply endorsement of any particular product, service, organization, company, or content.


For a list of MWWA's course policies, please click here.

operator quiz corner answers:


March 2024 Newsletter Practice Problems - Answers to  Materials and Operational Standards in Drinking Water


       October 2023 Newsletter Practice Problems - Answers to CT

August 2023 Newsletter Practice Problems - Answer to Chemical Feed Pumps

       May 2023 Newsletter Practice Problems - Answer to Turbidity

       March 2023 Newsletter Practice Problems - Answer to Storage Tank Inspections

       January 2023 Newsletter Practice Problems - Answer to Work Zone Safety


       October 2022 Newsletter Practice Problems - Answer to Cathodic Protection

August 2022 Newsletter Practice Problems - Answer to Chemical Safety

       May 2022 Newsletter Practice Problems - Answer to Membrane Filtration

       March 2022 Newsletter Practice Problems - Answer to Magnesium vs. Manganese

       January 2022 Newsletter Practice Problems - Answer to Service Line


       October 2021 Newsletter Practice Problems - Answer to Lead and Copper Rule

August 2021 Newsletter Practice Problems - Answer to Water pH

       March 2021 Newsletter Practice Problems - Answer to Water Main Testing Problems

January 2021 Newsletter Practice Problems - Answer to Flushing Problems


October 2020 Newsletter Practice Problems - Answer to Measuring Chlorine Residuals Problems

August 2020 Newsletter Practice Problems - Answer to Fluoridation Practice Problems

May 2020 Newsletter Practice Problems

March 2020 Newsletter Practice Problems

January 2020 Newsletter Practice Problems

Previous Years 

October 2019 Newsletter Practice Problems

March 2018 Newsletter Practice Problems

October 2017 Newsletter Practice Problems