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OWTS Permit Search (Before 1990)
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Permit Application Center
Application Forms

OWTS Program Exam Schedule - 2017

Event Date Time Location
Installer Exam Prep:
OWT 100
Conventional Onsite Wastewater Treatment Basics for Installers
August 31 8 am - 5 pm NE OWT - Kingston
Installers' Exam September 8
(Application Deadline- September 1)
9 am - noon DEM
Room 300
Designer Exam Prep:
OWT 120
RI Designer Examination Prep
November 2 8 am - 5 pm NE OWT - Kingston
Class I Exam November 9
(Application Deadline- October 27)
8 am - noon DEM
Room 300
Class II Exam November 10
(Application Deadline- October 27)
8 am - noon DEM
Room 300
Class III Exam November 10
(Application Deadline- October 27)
8 am - 4 pm DEM
Room 300
Class IV Exam TBA
Rain date- TBA
(Application Deadline- TBA)
All day - Specific times TBA written - TBA
field- TBA

Although it is unlikely, all dates are subject to change. In the event of a changing date, this schedule will be updated, and registered applicants will be notified.





Contact Water Resources
Office of Water Resources
235 Promenade Street
Providence, RI 02908-5767
Phone: (401) 222-3961
Fax: (401) 222-3564

For permitting information
Mohamed Freij (

For installer licensing information
Linda Washington (

For designer licensing information
Deb Knauss (

For rules and policy information
Jon Zwarg (