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Understanding Threats to Drinking Water in Lake Ontario

Mar 21, 2012


For Immediate Release

(TORONTO - March 21)-  Approximately 80 per cent of Ontario residents get their drinking water from Lake Ontario.  Some of the top potential threats to our drinking water will be discussed at Toronto and Region Conservation's (TRCA) Lake Ontario Evenings: Protecting Our Source Edition. This free public event brings together Lake Ontario experts who will talk about water quality, address possible threats to drinking water, and provide an overview of proposed policies to protect drinking water sources.

Four potential water quality threats specific to Lake Ontario have been assessed:  sewage, bulk fuel, petroleum pipelines and nuclear power stations. At the event attendees will learn how possible spill events (based on past, real events) might impact drinking water and what policies are proposed to avoid these impacts.

The CTC Source Protection Committee represents the general public, municipal, business and environmental sectors from across the Credit Valley, Toronto and Region, and Central Lake Ontario Source Protection Areas. Under the Clean Water Act, the Committee's Source Water Protection Plan will include policies to protect municipal drinking water sources, for both groundwater systems and Lake Ontario sources. The Draft Proposed Source Protection Plan released on March 19th, contains the proposed polices that includes recommendations about continuing to study and model the lake, and collaborative approaches for all levels of government to manage these threats. These proposed policies are now available for public comment until May 1, 2012.

More information on the proposed policies and how you can comment is available online at


WHAT: Lake Ontario Evenings- Protecting Our Source Edition

WHERE: Gladstone Hotel - 1214 Queen Street West

WHEN: Monday March 26, 2011

Doors open at 6:00 pm. Evening presentations will begin at 6:30 pm followed by a Q & A




  • Water Quality in the Lake Ontario Nearshore by Dr. Todd Howell, Great Lakes Monitoring Unit, Ministry of Environment
  • Understanding Threats to Lake Ontario Water Quality near Drinking Water Intakes by Michael D'Andrea, Director, Water Infrastructure Management, City of Toronto
  • Protecting Lake Ontario Drinking Water Quality: A Policy Perspective by Beverley Thorpe, Project Manager, CTC Source Protection Region


Lake Ontario Evenings

Lake Ontario Evenings was started in 2009 in an effort to increase public interest in and awareness of issues facing Lake Ontario. Five events have been held so far on the themes of water diversions, biodiversity, the nearshore environment, environmental contaminants and the Toronto landscape.


Toronto and Region Conservation

With over 50 years of experience, Toronto and Region Conservation (TRCA) helps people understand, enjoy and look-after the natural environment. Our vision is for The Living City®, where human settlement can flourish forever as part of nature's beauty and diversity.  For more information, call 416-661-6600 or visit us at





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Media contact:

Elizabeth Oakley
Tel: 416-661-6600 ext 5856

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