Drain plug requirements for dry cleaners: PERC regulations

PERC Pointer #3 - PERC-Resistant Drain Plugs

PDF version - 120 KB


You must have tetrachloroethylene (PERC)-resistant drain plugs readily available to seal all floor drains that could be impacted by PERC in the event of a spill.


How many drain plugs am I required to have?

You must have enough PERC-resistant drain plugs to seal all floor drains so that any spilled PERC, waste water or residue will not enter the environment. These drain plugs must be readily available in the event of a spill.

PERC-resistant drain plugs come in various shapes/forms (round, mats, inflatable, solid, etc.) sizes and materials. Specially designed drain plugs may have to be used
in some floor drains to ensure a proper seal. Contact your supplier to discuss PERC-resistant drain plug options.


PERC, waste water and residue can enter the environment through drains, and this poses a threat to human health and the environment. PERC is harmful to plants, causes
groundwater and surface water contamination, and poses a health threat to humans if not safely handled.

Regulatory Compliance

Environment Canada undertakes regular inspections in order to verify compliance with the requirements of the Canadian Environmental Protection Act, 1999 and its regulations. Investigations are conducted when there are reasonable grounds to believe that a violation has occurred. In situations of non-compliance, enforcement officers may issue a warning or an environmental protection compliance order, proceed with prosecution, or take some other enforcement action, depending on the circumstances (see the Compliance and Enforcement Policy for the Canadian Environmental Protection Act, 1999.

Where an officer proceeds with prosecution and a conviction is obtained, the Court may order a fine and/or imprisonment. In 2012, maximum fines were increased and mandatory minimum fines were introduced for certain specified offences. For further information, consult Environment Canada's website.

Prevent site contamination!

PERC-Resistant Drain Plugs
Long Description

Image of a drain plug fitting into a circular drain opening and image of a mat covering a floor drain.

Please contact your regional Environment Canada office if you have any questions or concerns:

Newfoundland and Labrador, Prince Edward Island, Nova Scotia, New Brunswick



Manitoba, Saskatchewan, Alberta, Northwest Territories, Nunavut

British Columbia, Yukon

Environment Canada
Inquiry Centre

For information regarding reproduction rights, please contact Environment Canada's Inquiry Centre at 1-800-668-6767 (in Canada only) or 819-997-2800 or email to enviroinfo@ec.gc.ca.

Also available in French, Persian, Chinese (traditional), Punjabi and Korean.

This document is provided as a courtesy for compliance promotional purposes only and is neither an official version of nor a substitute for the Canadian Environmental Protection Act, 1999 or the Tetrachloroethylene (Use in Dry Cleaning and Reporting Requirements) Regulations. Please refer to the Regulations to determine your full legal obligations. In case of a discrepancy between the law and this document, the law prevails.

Report a problem or mistake on this page
Please select all that apply:

Privacy statement

Thank you for your help!

You will not receive a reply. For enquiries, contact us.

Date modified: