The Drinking Water Information System (DWIS) is designed to collect important information regarding the state of the province's drinking water.  At this time DWIS is only available for Ministry staff and Laboratories with a user ID who  are reporting an Adverse Water Quality Incident or submitting other data. To access, please click here: Link to Drinking Water Information System

If you require assistance with the Drinking Water Information System, please phone our Service Desk at 1-866-494-6663 and follow the menu instructions.

If you are a Drinking Water System wanting to submit information in accordance with the Drinking-Water System Regulation (O.Reg. 170/03), please click here: Link to Drinking Water Submission Forms

If you require assistance with submission forms, please call 1-866-793-2588 during normal business hours.

If you have general questions about the Safe Drinking Water Act, 2002 or its associated regulations, please click here : Link to Drinking Water Web Page or call the Ministry’s Public Information Centre at 1-800-565-4923.