Mr. Gardner. What has been your observation in regard to the water supply for the city of Brockville?

Dr. Macauley. The water supply, the untreated water, for years has been found to be impure. It is much more impure now than it was some years ago, but we have always found colon bacilli in the water.

Mr. Gardner. In your opinion, does it increase in amount as the time goes on?

Dr. Macauley. It certainly has increased.

Mr. Powell. To what do you attribute the increase?

Dr. Macauley. I suppose it is the pollution. There is a constant emptying of sewers into the water all the way up. As you will find by investigation, the St. Lawrence River is polluted all the way up, even above the towns where the summer resorts are.

Mr. Mignault. There are a large number of boats that ply on the river, are there not?

Dr. Macauley. There are a great many boats; I could not say as to the number.

Mr. Mignault. I suppose the islands and the riparian communities are increasing in population, and the increase in sewage would be the logical result?

Dr. Macauley. Yes, sir.