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9400 Plum Drive, Suite 160
Urbandale, IA 50322
Phone +1 (515) 232-3623
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Ask WooPI!
  • Login

Contact WPI

9400 Plum Drive, Suite 160
Urbandale, IA 50322
Phone +1 (515) 232-3623
Send an email

MENU

About WPI
Contact WPI
PO
Prepare for your WPI Exam
Make a Payment
Log In
Facebook Twitter Linkedin Youtube Instagram
  • TESTING SERVICES
    • Information for Testing Clients
      • Exam Validation
      • Exam Development Option
      • Exam Delivery & Reporting
        • Computer-Based Testing Demo
      • Standardized Exams
    • ABC Testing
    • Standardized Exams
      • Standardized Water Treatment Operator Exams
      • Standardized Water Distribution Operator Exams
      • Standardized Wastewater Treatment Operator Exams
      • Standardized Wastewater Collection Operator Exams
    • Examination Resources
      • Information for Examinees
      • Study Guides
      • Exam References
        • Backflow Prevention Assembly Tester Exam References
        • Biological Industrial Waste Treatment Operator Exam References
        • Biosolids Land Applier Exam References
        • Physical Chemical Industrial Waste Treatment Operator Exam References
        • Plant Maintenance Technologist Exam References
        • Small Wastewater System Operator Exam References
        • Water Treatment Operator Exam References
        • Wastewater Treatment Operator Exam References
        • Wastewater Collection Operator Exam References
        • Water Distribution Operator Exam References
        • Water Laboratory Analyst Exam References
        • Wastewater Laboratory Analyst Exam References
        • Very Small Water System Operator Exam References
      • 2025 Need-to-Know Criteria
      • Formula/Conversion Tables
    • FAQ
  • CERTIFICATION
    • Certification Program
    • Certification Process
      • Certification Through Examination
        • Examination Resources
      • Certification by Reciprocity
    • Professional Operator
    • Operator Certification
    • Certification Renewals
    • Ohio EPA Certification
    • OpCert Program Contacts
    • FAQ
  • MEMBERSHIP
    • Become a Member
      • Benefits of Becoming a Member
      • Associate Membership
      • Certification Program Membership
      • Non-Regulatory Certification Program Membership
    • Make a Payment
    • WPI Members
  • ABOUT US
    • About Us
    • Read Our IMMERSE Blog
    • WPI Awards
      • WPI Awards Nominations
      • Award Recipients
    • WPI Staff
    • Board of Directors
      • Board of Directors Nominations
    • Certification Commission for Environmental Professionals
    • Annual Reports
    • Get Involved
      • Volunteer Testimonial
    • Login
    • Make a Payment
    • WPI Brand Management
  • EVENTS
    • WPI’s Annual Conference – Innovation in Certification
      • IiC23 – Innovation in Certification Conference
      • IiC24 – Innovation in Certification Conference
      • IiC25 – Innovation in Certification Conference
Make A Payment
  • TESTING SERVICES
    • Information for Testing Clients
      • Exam Validation
      • Exam Development Option
      • Exam Delivery & Reporting
        • Computer-Based Testing Demo
      • Standardized Exams
    • ABC Testing
    • Standardized Exams
      • Standardized Water Treatment Operator Exams
      • Standardized Water Distribution Operator Exams
      • Standardized Wastewater Treatment Operator Exams
      • Standardized Wastewater Collection Operator Exams
    • Examination Resources
      • Information for Examinees
      • Study Guides
      • Exam References
        • Backflow Prevention Assembly Tester Exam References
        • Biological Industrial Waste Treatment Operator Exam References
        • Biosolids Land Applier Exam References
        • Physical Chemical Industrial Waste Treatment Operator Exam References
        • Plant Maintenance Technologist Exam References
        • Small Wastewater System Operator Exam References
        • Water Treatment Operator Exam References
        • Wastewater Treatment Operator Exam References
        • Wastewater Collection Operator Exam References
        • Water Distribution Operator Exam References
        • Water Laboratory Analyst Exam References
        • Wastewater Laboratory Analyst Exam References
        • Very Small Water System Operator Exam References
      • 2025 Need-to-Know Criteria
      • Formula/Conversion Tables
    • FAQ
  • CERTIFICATION
    • Certification Program
    • Certification Process
      • Certification Through Examination
        • Examination Resources
      • Certification by Reciprocity
    • Professional Operator
    • Operator Certification
    • Certification Renewals
    • Ohio EPA Certification
    • OpCert Program Contacts
    • FAQ
  • MEMBERSHIP
    • Become a Member
      • Benefits of Becoming a Member
      • Associate Membership
      • Certification Program Membership
      • Non-Regulatory Certification Program Membership
    • Make a Payment
    • WPI Members
  • ABOUT US
    • About Us
    • Read Our IMMERSE Blog
    • WPI Awards
      • WPI Awards Nominations
      • Award Recipients
    • WPI Staff
    • Board of Directors
      • Board of Directors Nominations
    • Certification Commission for Environmental Professionals
    • Annual Reports
    • Get Involved
      • Volunteer Testimonial
    • Login
    • Make a Payment
    • WPI Brand Management
  • EVENTS
    • WPI’s Annual Conference – Innovation in Certification
      • IiC23 – Innovation in Certification Conference
      • IiC24 – Innovation in Certification Conference
      • IiC25 – Innovation in Certification Conference
Make A Payment
Ask WooPI!

FAQ

Find answers to some of the most common questions asked of WPI’s testing service, ABC Testing:


Q: What is the format of ABC Testing’s examination questions?

A: WPI’s standardized exams contain only multiple-choice questions. Most questions have four options (one correct answer and three distractors).


Q: How should I prepare for the exam?

A: WPI recommends that you review the Need-to-Know Criteria for your exam to identify those areas for which you may need additional preparation. A list of reference materials for each exam is included in each Need-to-Know Criteria and on the Exam References page of our website. You may also wish to familiarize yourself with the Formula/Conversion Table that will be provided for your use during the exam.


Q: How do I prepare to take a Computer-Based or Web-Based exam?

A: Here is a link to a video of the Computer-Based Testing process. This page will take you to a Web-Based Testing process demo.


Q: I would like to check on the status of my score, may I contact WPI?

A: No, WPI is not authorized to release your score; you should contact your certifying authority.


Q: My score does not reflect what I think it should. What can I do?

A: If you would like to request a rescore, please complete the Hand Score Request Form and submit it along with the $35 fee. Once the request and fee are received by WPI staff, your test will be hand-scored with permission from your certifying authority. Any questions about the hand score process may be directed to WPI Scoring. Please note that there are several procedures in place to ensure the accuracy of your initial score, and hand score results have always matched the initial score.     


Q: I did not pass the exam. How can I better prepare?

A: After taking an exam, you can request a diagnostic report from WPI for $25. A diagnostic report shows your strengths and weaknesses in exam areas. Some of our clients already receive diagnostic profiles, which are included in your scoring information. Please check this information before requesting a diagnostic profile.


Q: Will WPI provide exam scores directly to the examinees? 

A: WPI is only able to provide test-related information to the testing client. The testing client is responsible for providing information to examinees in their state/province.


Q: Does WPI recommend a process for candidates to challenge an examination question?

A: Candidates should provide comments regarding any question(s) they believe contain errors during the examination. Examinees taking a paper-based exam should submit comments on the Question Comment Form; those taking a computerized exam should submit comments electronically during the exam.

WPI will review specific candidate comments relating to the examination at the request of testing service clients.  A written response will be provided to the client but not to the candidates. Although WPI will provide a recommendation, the client makes the final decision to change the examination score.


Q: How does WPI validate the questions and exams?

A: An overview of WPI’s validation process is found in the pamphlet Validating Your Certification Exam.


Click here to submit FAQs.

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Upcoming Events

WPI will be hosting a POWER event in San Antonio, Texas June June 13th at AWWA’s ACE22 where we will be honoring the most recent PO Certifications in a pinning ceremony.  Contact us if you would like us to honor YOU.

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9400 Plum Drive, Suite 160
Urbandale, IA 50322
Phone +1 (515) 232-3623
Send an email

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