STATEMENT OF MR. CLARENCE W. HUBBELL,
CONSULTING SANITARY ENGINEER OF THE CITY OF DETROIT.
Mr. Tawney. Mr. Hubbell, I think you had better state for the record what work, if any, you have done in connection with the consulting engineer of the commission and what duty you were required to perform in connection with this problem. First, let me ask you if you reside here in the city of Detroit?
Mr. Hubbell. Yes, sir; I do.
Mr. Tawney. You are a consulting sanitary engineer, practicing here in the city of Detroit?
Mr. Hubbell. Yes, sir.
Mr. Tawney. How long have you been engaged in the actual practice of your profession?
Mr. Hubbell. I graduated from the University of Michigan in 1893 and have been engaged in engineering work ever since. About a year and a half ago Mr. Fenkell, the commissioner of public works for the city of Detroit referred to me three problems to be reported upon.
The first problem was that I review the data and conclusions of the international joint commission for the purpose of enlarging on any phase of the matter that might be necessary in order to determine what preventive or remedial measures are required with reference to Canadian waters.
The second problem was, to what extent does the sewage of the city of Detroit pollute American waters so as to render them unfit as a source of raw water for filtration purposes?
The third problem submitted was, by what means, if any, should the city of Detroit undertake to purify the sewage, and what expense would be justifiable for that purpose?