Backflow Prevention Program

Backflow Prevention Program

The Municipality of Thames Centre has put in place a Backflow Prevention Program, under By-Law 6-2019, to ensure that the treated water in any watermain, buildings, and homes stays free of any contaminants, pollutants, and un-potable water. The way in which this is done is by installing a backflow prevention device to the water connection to ensure no backflow event occurs.

The Municipality has partnered with Backflow Solutions Inc (BSI) for the organization and notification of annual backflow prevention device test reports and requirements. Annual backflow test reports and supporting documents can be submitted by clicking the submit a completed report button below.

Submit a Competed Test Report

Cross Connect Survey Report

Backflow Prevention Device Test Report

About Backflow Solutions Inc.

Backflow Solutions Inc. (BSI) is a company that specializes in the organization, administration and management of backflow prevention programs in over 500 water systems in Canada and the United States. BSI will notify property owners via mail when they require an annual backflow prevention device test.


What is the Backflow Prevention Program?

The Backflow Prevention Program safeguards the municipal drinking water system.  The goal of the program is to inform Thames Centre municipal drinking water users on how to prevent external contamination from entering the distribution system, identify potential cross-connections, and ensure annual testing compliance.


All backflow prevention devices in The Municipality of Thames Centre are required to be tested annually, as per By-Law 6-2019 . Properties in Thames Centre that currently do not have a backflow prevention device, but require one under By-Law 6-2019, will be issued a letter to install an appropriate device and have it tested thereafter. Some properties will already have an appropriate backflow prevention device installed and are conducting an annual test. If you currently have a backflow prevention device installed and are conducting annual tests, please forward a copy of the test reports to Kevin Willson, (


What is Backflow?

Backflow is the reversal of the normal direction of water from the customer’s premises into the municipal drinking water system.  Potential backflow hazards could be caused by fire sprinkler systems, solar heating systems, swimming pools, boilers, lawn irrigation systems, or a number of other factors.


What is a Cross-connection?

A Cross-connection is any potential, or current connection between the potable municipal water supply, and any non-potable water, substances, or hazardous materials. Improper cross-control management can lead to a potential Backflow event.




What is a Backflow Prevention Device?

A Backflow Prevention Device is a mechanism that allows water to flow only in a single direction. A testable backflow prevention is required under By-Law 6-2019. A testable backflow prevention device can be seen below.


Do I need a Backflow Prevention Device?