Again, I was impressed with the fact that the Diamond Crystal Salt Co., which is the chief industry located at St. Clair, is at the proposed point of purification and disposal. That might constitute a hardship for the leading industry of the town. The Diamond Crystal Salt Co. has recently expended a great deal of money for a new intake pipe 24 inches in diameter and 350 feet long. It has recently expended a large sum of money for a filtration system to filter all the water that goes into the plant, to the salt beds, and through its vessels. It is expending a large sum of money for sterilizing the brine and carrying it to a temperature of 280° F. before it is used.
It may be known to this commission that experiments made in France show that pathogenic germs live for six months in brine not subjected to a temperature of 100° C. The department in France that made the experiments corresponds to our bureau in the United States having to do with pure foods and drugs. In France they were even going so far as to prohibit the sale of so-called natural salt, sea salt, and so forth, for the table, on the basis of impurity. The ordinary vacuum plant, as you may know, carries a temperature of only about 120° F., and that does not destroy pathogenic germs in brine.
As I have stated, the Diamond Crystal Salt Co. has gone to a very large expense to produce pure salt. The location of a plant of the kind mentioned at that point, notwithstanding the amount of proof that could be brought to bear to show that harmful results would be a minimum, might possibly be very objectionable. I can say that, in my individual opinion, and not speaking for the company, I feel that the company would be willing to cooperate with the city of St. Clair to secure a location that would be more advantageous to this plant. I am not criticizing the proposition, but simply stating that the proposed location may be objectionable, and I may be wrong with regard to that.
Another impression that I got from the report was this: I found that it says that the population of this city has not increased in 25 years. I think that is about right. I also found in looking over the report that they would pay over 2 to 1 to maintain this plant if it were put in as proposed; that is, the cost of maintenance would be, roughly speaking, 2 to 1: say, 50 cents perhaps in Detroit and 90 cents in St. Clair, something like twice the expense on a city that is in no way an increased menace if it has not changed its conditions at all. Therefore it would appear to me as a taxpayer and one interested from the outside that the installation of such a plant at the undivided expense of a small city like St. Clair might perhaps be a burden, and hardly a just burden, on the taxpayers when this is, in a measure, an international matter. I understand from Mr. Barron that the city would be subject to a considerable expense through its change in pavements if the plan at present proposed is carried out.
The summation of what I have had to say is probably this: That interested in the improvement of and desirous to combine in this plan, a small city like St. Clair has to be very guarded in its commendation or acceptance on account of the conditions that might be imposed through a too hasty conclusion in the matter. I think that is about all I have to say.
Mr. Powell. What is the population of St. Clair?
Prof. Weil. Three thousand.
Mr. Tawney. You probably observed in reading the report of the consulting sanitary engineer that three possible sites for the treatment plant were studied, and I understand that the one that is recommended here is the one that you are objecting to.
Prof. Weil. Yes, sir.
Mr. Tawney. Have you considered the objection stated by the engineers to either of the other two?