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Drinking water quality
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    A safe water supply is crucial to public health and plays a critical role in the success of our society and economy. Improvements in water quality over the past century—in particular, the disinfection of water—resulted in one of the great public health achievements of the 20th century: a dramatic drop in the incidence of waterborne diseases, such as cholera and typhoid. Before disinfection, the incidence of typhoid fever was approximately 100 cases per 100,000 population in 1900; by 1920, it had decreased to 33.8 cases per 100,000, and by 1950, to 1.7.7 By 2000, there were no typhoid cases related to public drinking water in the U.S.

    The U.S. has one of the safest drinking water supplies in the world. People safely come in contact with water every day through drinking and eating, bathing, participating in recreational activities, and inhaling water vapor or mist.

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