Trichloroethylene (TCE)

Trichloroethylene (TCE) is a clear colourless liquid used mainly for degreasing metal parts in manufacturing. TCE evaporates in the air, but can stay in the soil and in groundwater for an extended period of time if it is improperly disposed.

Bishop Street Community

Some homes in the Bishop Street community in Cambridge have TCE in the indoor air due to the presence of TCE in the groundwater underneath the homes. The levels of TCE in the Bishop Street Community are not expected to result in acute health effects.

For more information:

The Bishop Street Community Newsletter was developed to share updates from a variety of government agencies including the Ministry of Environment and Climate Change, City of Cambridge and the Region of Waterloo about the TCE remediation and mitigation measure in the Bishop Street Community.

Public Meetings

May 2017

The purpose of the meeting was to provide an update to residents on the progress of the TCE groundwater remediation and indoor air mitigation activities.

Public Health provide an update on indoor air treatment:

November 2010

After the meeting in June 2010, Public Health Ontario (formerly known as the Ontario Agency for Health Protection and Promotion) an expert provincial agency, was invited to review all available information on the TCE contamination and to hear residents' concerns directly.

Dr. Ray Copes, Director for Environmental and Occupational Health at Public Health Ontario, presented his findings at the November 2010 meeting.

A third party reviewer, Dr. John Eyles, a professor from the School of Geography and Health Sciences at McMaster University, provided additional commentary at that meeting. Region of Waterloo's Medical Officer of Health, Dr. Liana Nolan, and Associate Medical Officer of Health, Dr. Hsiu-Li Wang were also in attendance to hear residents' concerns.

Public Health Ontario's report and presentation are available below:

June 2010

Public Health hosted a meeting to listen to residents' questions and concerns regarding health impacts of TCE in the Bishop Street Community.

Contact publichealth@regionofwaterloo.ca to request a copy of the audio transcripts of the Bishop Street public meetings.

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