SEWERAGE
Desplaines, Ill., at a cost of $30,000, has put in a sewer system, which, it is claimed, is one of the most perfect sanitary plants in northern Illinois. The main sewers empty into the Desplaines river, but as the town does not depend for its water supply upon that stream, there is no danger of the water for domestic purposes becoming polluted.
The great intercepting artery of the sewerage systems at Washington, D, C., is approaching completion. Itslength is 1 1-5 mile (6,500 feet), and its dimensions 11 feet 8 inches. Part of it is tunneled through forty-five feet of solid rock. The sewer is constructed in three principal sections, the diameter of which are 11 feet 3 inches, 10 feet 6 inches, and 9 feet 8 inches, the diameters diminishing from the river to the Fifteenth street terminus.
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