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Show 9 sumption of 245 gall ens of water per capita, within the last five years there has been an increase of 45/& services metered and a decrease in consumption of 90 ;: allons per capita per day. Likewise Fig.• 4- shows the effect of meters on censumption in Salt Lake City for the past five years. The water consumption per capita is very much larger for this city than any other city of the approximate size. This is due largely to the using of the water for fire prevention continuous flowing drinking fountains, and the flushing and washing of thr streets of the business district. during winter tims. The following table, page 11f gives data concerning the use of water in a variety of conditions with respect both to consumption of water and the use of meters. Especially noteworthy is the increase in the use of meters, and comparatively steady consumption rate where meters have been in use for a considerable period of time, and the very high rates of consumption for the unmetered supplies of Boston and Chicago. The effect of introduction and general use of meters in reducing wasrte of water is always very marked, and may be illustrated by innumerable instances. At Cleveland, Ohio, the introduction of meters reduced the per capita consumption from 172 gallons per day in 1901 to 98 gallons in 1909 and 102 gallons in 1910. In Lawrence, Mass., the consumption in 1890, with 28 percent of taps metered was 80 gallons; while in 1909 with 90 percent metered, it was about 43 gallons. The effect of the use of meters on consumption in the Boston Metropolitan water district is shown in iJllg.. • 5 -.. Up to 1905, in spite of careful inspection, the consumption had steadily grown about 120 gallons per capita. Since that time, meters have been rapidly installed, resulting in a reduction of consumption to about 90 gallons in 1915, with 70 percent of services metered. The effect of this waste reduction is very great in construction and operating costs, and in making plans for extensions, as indiedted hy - |
