The Value of Education
Whether you’re an employer or someone looking to get hired on, having the skills, attitude and knowledge you need to work in the field is one of the foundational blocks to a successful career. Employers that recognize the value of their employee’s to their business success, understand the value of education and training to make them more competitive. Existing employee’s understand what they have to contribute to the team when they know what their job is and have the skills to perform their responsibilities with confidence.
The Washington Onsite Sewage Association wants to help its members find the learning program that will help you succeed, whether you’re a company owner or you are an individual building or improving your knowledge. With extensive class offerings that meet you specific skill development and crossover learning opportunities that are integrated with all industry segments, you can find a success pathway to meet your personal and company goals. WOSSA classes are recognized by the regulatory agencies for the ongoing education CEU requirements across the state.
We’ve heard all too often, “Why should I train my future competition” … But, if you’re a smart business owner, you look at education of your workforce as an investment in your success and theirs … as an owner you will also get respect and loyalty of your employees. If you’re an individual looking to develop the skills to enter the on-site industry or simply build on your current experience to get a shot at a good job and a career, the WOSSA Training Center can help.
Online Distance Learning Courses
In response to many requests, WOSSA offers online distance learning courses. The first two of many are Basics of On-Site O-101 and On-Site O-102, self-directed study courses, providing the participant with 8 contact hours (.8 CEU's). The course consists of a printable Study Guide, seven modules, quizzes, and final exam, with a printable certificate upon successful completion. Course Fee is $150. Appropriate for installers, pumpers, operation and maintenance. Click here to register for the course.
Online Courses
Industry Certification Testing
WOSSA is presently doing the certification testing for Installer, Pumper (O&M Level 1), and Specialist (O&M Level 2) for a number of counties.
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Island (Installer exam pending)
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Skagit
- Snohomish
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Clallam
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Kitsap
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Pierce
- Thurston
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Lewis
- Cowlitz
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Clark (Installer exam pending)
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Skamania

We are working with other counties to bring them onto the program, so call or check back often. Reciprocity exists between these LHJ's for this exam, meaning you only have to take the test once, but additional requirements for education (CEU's), experience, insurance and bonding are required and may be different. Contact your LHJ for more specifics on these questions click on the “County LHJ Links” Button.
Your Local LHJ
Study Guidance and Links
There are a number of "content" areas for the exam that you are taking. The Installer exam and the Specialist (O&M Level 2) exams have a 50 question, multiple choice component. In addition, the O&M level 2 and Installer exams have a supplemental exam. Pass/Fail on the exam is 70%.
The regulatory based content areas of all exams are based in state code. Local code variations for LHJ's are not covered in this exam as part of the content areas.
For O&M Level 2: The supplemental test has a combination of multiple choice, short word answers and a math component that tests your understanding of system component volumes for both standard rectangular and cylindrical tanks. Press the button labeled “Math Study Guide” for a practice study guide on math for both level 1 and level 2.
If you are testing for the Operations and Maintenance (Level 1) exam, focus content areas are relative to frequency of inspections, critical and essential inspection points and techniques for system components.
For O&M Level 2, evaluation of systems for problem solving are additional content areas of focus.
Review information for both Installers and O&M testers.
Other study Resources can be reviewed using the links below. These resources are for both Installers and Operations and Maintenance test takers. If you are an Installer, focus content areas are related to the installation issues, setbacks, construction detail and orifice sizing, site preparation and consideration for topography.
Click on the links below, to download the study material:
Important Note: Proprietary Systems are not a testing content area for any exams proctored by WOSSA