<<< All the posts

Cross-connection control program for building owners

Building owners: protect drinking water through an effective cross-connection control program!

Owners of commercial, industrial and institutional buildings, with the exception of exclusively residential buildings of less than 3 floors and less than 8 apartments, are required by law to protect their buildings against possible drinking water contamination.

The most frequent cases of contamination occur inside a building, where the water has been delivered by the municipal water supply system. Contamination may be limited to one or more areas of the affected building, but it can also spread in the city water supply system to be redistributed to other buildings in the sector.

Cross-connections and contamination of drinking water

Seemingly innocuous behavior can be the source of contamination, as well as the presence of unprotected cross-connections in a building plumbing system. A cross-connection means any actual or potential connections between a potable water system and any source of pollution or contamination.

Contamination can occur when there is reversal of the normal direction of water flow in the potable water system. This is called a backflow. To protect against this phenomenon, it is mandatory to install backflow prevention devices everywhere a risk is detected.

The provisions of the Building Act

In Quebec, the Régie du bâtiment is acting as the legislator. It enforces the Building Act, which is composed of the Construction Code and the Safety Code. It is in the latter that the provisions for cross connections protection of existing buildings can be found (Chapter 1, Article 7).

The Security Code is referring to two CSA standards: B64.10-11 and B64.10.1-11 – Selection and installation of backflow preventers and Maintenance and field testing of backflow preventers.

Cross-Connection Control Program

The consequences of contamination are often disastrous for human health and to the environment, not to mention the substantial legal fees involved in case of dispute, costs to decontaminate the affected facilities or to restore the company’s reputation.

This is why a building analysis is recommended to determine if there is presence of risky cross-connections in the plumbing system. The establishment of a cross-connection control program will ensure compliance with the building codes and laws and preserve the peace of mind of building owner!

Contact Darspec experts for a building analysis or for more information on the offered cross-connection control programs!