Well Water Testing

Check your well water for bacteria contamination at least 3 times per year - spring, summer, and fall. Free testing for E. Coli and Coliform bacteria is available from your local Public Health Unit.

For more information on water testing through your Public Health Unit,
Call ServiceOntario, INFOline at:
    1-866-532-3161 (Toll-free)   |   In Toronto, (416) 314-5518

    TTY 1-800-387-5559  |   In Toronto, TTY 416-327-4282

    Hours of operation : 8:30am - 5:00pm

Why test your well water?

Test your Well Water
by Mary Jane Conboy,
Executive Director Well Wise Resource Centre

What should I test for?


National Impairment Brochure

Technical Support Document for Ontario Drinking Water Standards, Objectives and Guidelines

Appendix A of the Ontario Drinking Water Standards (ODWS) Technical Support Document

Well Aware Booklet for Well Owners

Download the guide for well owners. The Well Aware booklet guides you through the life cycle of a well, how to maintain your well, and shows you how your well affects water quality.
Our new address is:
PO Box 22105, Elmwood Square
St. Thomas, ON N5R 6A1
Canada
The OGWA is an affiliate of:
The NGWA