Dr. Macauley. Partially it does; but it enters the St. Lawrence by a separate pipe.
Mr. Gardner. How many cases of typhoid fever do you think developed in consequence of the sewage pollution in your water supply?
Dr. Macauley. At that time?
Mr. Gardner. Yes; that is approximately how many cases?
Dr. Macauley. There is no doubt that the breaking of the intake pipe was practically the cause of the epidemic. We have had too high a typhoid content always until the water was heavily chlorinated. We have chlorinated our water since 1910.
Mr. Gardner. Previous to that time did you have an epidemic of typhoid?
Dr. Macauley. We had in 1909 a slight epidemic. There were, perhaps, 25 or 30 cases. I could not give you the exact number now. We had none in 1910. The dredging that was being done along the river front was practically the cause of the epidemic. We have never been as free from typhoid as we were this last summer. We have never had any cases that we could trace to the water since it has been highly chlorinated. Still our water is always suspicious, and if anything went wrong with the chlorination plant we would surely have typhoid.
Mr. Mignault. At the time of the last epidemic the water was chlorinated?
Dr. Macauley. Yes; but it was not chlorinated highly enough. We practically got sewage into our water pipe.
Mr. Powell. I suppose there was too great a burden thrown on your chlorinating system?