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

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About WPI
Contact WPI
PO
Prepare for your WPI Exam
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  • TESTING SERVICES
    • Information for Testing Clients
      • Exam Validation
      • Exam Development Option
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        • 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
      • Need-to-Know Criteria
      • Formula/Conversion Tables
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  • CERTIFICATION
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    • WPI’s Annual Conference – Innovation in Certification
      • IiC23 – Innovation in Certification Conference
      • IiC24 – Innovation in Certification Conference
      • IiC25 – Innovation in Certification Conference
  • 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
      • 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 Media Kit
  • 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
      • 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 Media Kit
  • 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

Exam Delivery & Reporting

Three Testing Options

Computer-Based Testing

PSI is WPI’s international computerized exam administrator. Through this partnership, PSI handles the scheduling and administration of computerized exams at PSI Test Centers. Candidates immediately receive their score reports at the conclusion of the exam and clients are able to access examinee results through a password-protected web portal.

Watch the brief PSI Test Center Experience (external link) video for a quick test center tour that shows candidates what to expect during a testing session.


Web-Based Testing

A WPI-supported, web-based option exists for clients to administer computerized exams through their own local resources, such as community colleges and field offices. Similar to paper-based exam administration, clients are responsible for scheduling, arranging, and proctoring exam sessions.

WPI’s web-based exams are password protected and require a two-step process with unique IDs and passwords for both proctor and candidate. Candidates immediately obtain their score reports and clients receive email notification of exam results at the conclusion of the exam session.

A web-based exam process demo is available here.


Paper-Based Testing

Clients using ABC’s paper-based exams are responsible for scheduling, arranging, and proctoring exam sessions. WPI will provide test books, administration instructions, and scannable sheets for candidates to record their answers.

Following the administration of the exam, the client returns all exam material to WPI for scoring and report generation. As part of the scoring process, WPI’s Testing Team performs quality control steps, such as evaluating missing or smudged marks on the scanned sheets.

WPI Voluntary Certification Process >
Get Involved >
Testing Service >

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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.

Get More Information

© Water Professionals International.

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

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