Mr. Tawney. Have you ever made any independent examinations?
Dr. Macaulay. Examinations have been made by our board. They are made every week. I think from four to six samples a week are analyzed, and the raw water is now found to be constantly polluted.
Mr. Tawney. Have you a water-filtration plant?
Dr. Macauley. We have not. We chlorinate our water by gas chlorination.
Mr. Powell. What would be the average summer contamination, expressed in colon bacilli?
Dr. Macauley. We find colon bacilli practically constant in 5 to 10 cubic centimeters.
Mr. Gardner. Do you notice any difference in the amount of pollution in winter and summer?
Dr. Macauley. I think it is practically the same; perhaps it may be a little higher in the summer season.
Mr. Mignault. What have you done locally to remedy the situation, Dr. Macauley?
Dr. Macauley. Our epidemic was due to an accident. The intake pipe we have now extends 700 feet out into the St. Lawrence from the dock, but the one we had before extended only a little over 100 feet into the river. There is an eddy that flows down to Picketts Point right below Brockville, and it goes right straight up back along the shore; but our sewage pipe extends about 900 feet down and about 800 feet from the shore. In December about two years ago a boat anchor got a hold of the sewer pipe down below our intake pipe and opened it about 200 feet from shore. It made an opening in the joint of the pipe, and we got the pollution from the sewage into the intake pipe. That is undoubtedly what caused the epidemic. When that was remedied the epidemic stopped.