The exam is open book, and the passing score is 70%. Please visit the
Trades Examination Information page for additional exam information and dates.
The exam will cover information contained in the following:
You will need a working knowledge of the component manuals for the various POWTS. You will need to bring these to the exam site. These can be purchased through
Document Sales or by calling (608) 243-2441 or (800) 362-7253, and some can be viewed and printed directly from the POWTS Component Manuals site. The general product names are as follows:
At-Grade Pressure Distribution Component Manual|
Holding Tank Component Manual|
|Single Pass Sand Filter Component Manual|
|In-Ground Soil Absorption Component Manual|
|Mound Component Manual|
|Pressure Distribution Component Manual|
Additional training materials relating to this credential may be ordered through
Document Sales. They are intended to be training guides and may not match the current code.
Plumbing - Drain & Vent System Design|
|Plumbing - Sizing the Water Supply System|
|Plumbing - Wisconsin Water Treatment Handbook|
|Wisconsin POWTS Inspector Handbook|
|Soil & Site Evaluation Handbook|
Multi Purpose Piping Systems Design Manual
Copies of Wisconsin Administrative Codes may be printed from the Wisconsin State Legislature site or obtained from Document Sales online or by calling (608) 266-3358. International model codes and accessibility standards can be obtained from the International Code Council (ICC) or by calling (800) 786-4452. When there is a change to Wisconsin codes, exams will cover the new codes three months after the effective date.