Issue 7 and Volume 59.

THE WAKEFIELD WATER STERILIZATION PLANT The only chlorine gas plant used for the sterilization of a municipal water supply in Massachusetts is the one in Wakefield, which was put in regular use on September 1, 1914. Wakefield has a surface water supply, taken from Crystal Lake, in the outskirts of the town, and pumped directly into the mains, a standpipe serving to take the surplus, and to afford a night supply, the pumps being run about 8 hours a day. A considerable part of the watershed is under cultivation and much of the resident population is without sewers, so that heavy rains wash a good deal of organic matter into the lake, raising the bacterial content very considerably and, at times, causing dangerous contamination. While it is indisputable that filtration is the only method by which such a supply can be rendered always satisfactory in bacterial quality and in appearance,…

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