Installer Info
For information regarding Installer Continuing Education Requirements (CEUs), please see LCC 8.4.320(2)(d).
Interested in being added to the Lewis County's list of Certified Installers?
The following criteria would need to be met (see LCC 8.4.320):
- Application
- Non-refundable $150 fee
- Current state registration certificate and bond in accordance with RCW 18.27 (Registration of Contractors)
- Passing Lewis County's Installers Test or Certificate of a passing WOSSA Test.
We offer a complimentary study guide for Lewis County's Installers Test, which can be found here here: STUDY GUIDE
For more information on becoming a New Certified Septic Installer, Pumper, or Designer, please contact our office 360-740-1135 or visit us at 2025 NE Kresky Ave Chehalis, WA 98532.
Forms: