Ontario Association of Sewage Industry Services
OASIS was established in 1991 to support and represent businesses in the septic, portable toilet and biosolid land application industry.
Become a Member
Join the largest professional network of hauled sewage, septic and portable toilet companies in Ontario and be at the forefront of leading industry advancement, training programs and regulatory updates.
Training & Certification
OASIS training programs are designed in consultation with Ontario Ministries to ensure your business and employees are compliant.
Learn more about how your septic system works and what you need to do to keep it operating efficiently to avoid costly emergency maintenance and replacement costs.
13th Annual Chairty Golf Tournament
30th Annual OASIS Conference & Trade Show
Charity Golf Tournament
Wingham Lindon Hotel, 86512 London Rd, Wingham, ON N0G 2W0, 519-357-1342
Friday, June 9th, 2023
Tee Time: 11:00 A.M.
$125 Per Golfer
$500 Per Team
Lunch available by donation
Dinner & Auction 6:00 P.M.
30th Annual OASIS
Conference & Trade Show
January 18th – 21st, 2023