Coliforms are commonly used as an indicator of drinking water quality. In March and April of 1993, there was a major outbreak of gastrointestinal illness in Milwaukee, Wisconsin caused by contamination in the public drinking water During this outbreak, coliform levels remained within the acceptable range. In four sentences or fewer please describe why, in this case, this commonly used indicator of water quality remained at acceptable levels despite contamination that resulted in over 400,000 cases of gastrointestinal illness?

Applications and Investigations in Earth Science (9th Edition)
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ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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  1. ) Coliforms are commonly used as an indicator of drinking water quality. In March and April of 1993, there was a major outbreak of gastrointestinal illness in Milwaukee, Wisconsin caused by contamination in the public drinking water During this outbreak, coliform levels remained within the acceptable range. In four sentences or fewer please describe why, in this case, this commonly used indicator of water quality remained at acceptable levels despite contamination that resulted in over 400,000 cases of gastrointestinal illness?

 

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