Mr. Rich. No; we are not.

Mr. Tawney. Have you made any bacteriological examination of the waters of the Detroit River independent of the examination which was made by our bacteriologists?

Mr. Rich. We have made some this summer in connection with the water as it is supplied to the other municipalities, not making a study of the river as a river, but, taking it as it comes through the means of these municipalities below, we have made some studies.

Mr. Tawney. How does your examination compare with the examination of the cross sections of the river made by our bacteriologists?

Mr. Rich. They could not be compared, because all the water that is taken from these intakes comes from a single point in the river. We have not taken any samples in the river any more than last year we took some few samples from the western end of Lake Erie which coincided in a general way with the findings of the bacteriologists of this commission, except that our samples were taken at other points and showed what might be expected from theirs.

Mr. Tawney. As the chief State sanitary engineer, what would you say, Mr. Rich, as to the thoroughness and completeness of the work of the consulting engineers in their study of the problems that are involved here in the city of Detroit?

Mr. Rich. I think it has been very fine, indeed. I do not believe I could speak too enthusiastically upon that point. I am very much pleased, indeed, with the results obtained and the way in which the work was done, and that especially in connection with Mr. Hubbell’s work on the part of the city. It is a fine thing.

Mr. Magrath. You feel that we were justified in undertaking the work?

Mr. Rich. I do, indeed; and I think it is a great contribution to the future as indicating the way in which such problems ought to be attacked and worked out.

Mr. Powell. Have you given any consideration to the disposal of the sludge that would be the result of screening and sedimentation?