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Ontario Association of Sewage Industry Services represents septage pumpers, haulers, septic tank installers, and portable toilet rental members. The Ontario Sewage and septage industry.

Ontario Association of Sewage Industry Services - "Working Together for a Greener Tomorrow." Welcome OASIS provides a membership forum for those in the business of sewage systems in Ontario. We represent our members' needs by maintaining a high level of concern for safety, environmental and political issues. We keep our members advised with respect to all present or contemplated legislation from all levels of government. Main Page