Transport committee  We have noticed that the retention time of copper in the pipes of residences that are a long way from the street is much longer. So we have to increase the pH of the solutions. Adding an anti-corrosion treatment and increasing the pH makes the water less aggressive. So we can sol

Transport committee  The situation is not the same in terms of health. Copper pipes do not pose as serious a problem. But we still became involved as soon as we saw copper content that was outside the standard because it is also a little unpleasant. It produces water with a very blue colour, which i

Transport committee  A part of that information is already in registries and municipal plans. The type of pipe used in a house and the date when it was built are mentioned.

Transport committee  I do not know if that is the case. But I can tell you that, internally, we can check the overall condition of the water pipes installed in the street. However, we cannot determine the condition of the pipes on any given property.

Transport committee  At the moment, we have not installed water meters in residences, but it may not be long, by virtue of some of the results we are getting, which are actually more or less convincing. We have installed some in the system to measure water consumption. Currently, they are mostly in c

Transport committee  Yes, exactly.

Transport committee  All test protocols have a standard flow time of five minutes. In the past, we actually did other studies, when the sample was taken as soon as the tap was turned on in the morning. In those conditions, the results of the lead concentration tests certainly showed a higher concentr

Transport committee  The difference is quite considerable. In places where the results were already outside the standard after a five-minute flow, the concentration was perhaps not twice as high, but it was not far off.

Transport committee  Ms. Prévost would be in a better position to answer that question.

Transport committee  Thank you.

Transport committee  Yes, I can hear you. Good afternoon, everyone. The city of Trois-Rivières has a population of 136,000. We have 965,000 kilometres of water pipes. Since 2013, we have been working to improve method of our water sampling in order to detect the presence of lead and copper. We have