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The Leavenworth, Washington Case: Environmental Concerns With a Water Treatment Plant Failure

A waterborne outbreak of gastrointestinal illness occurred in Leavenworth, Washington during the spring of 1980. Evidence is provided suggesting that multiple etiologic agents were reponsible for the outbreak, including Giardia lamblia and Yersinia enterocolitica. Monthly sampling of the water suppl...

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Published in:	Journal of environmental health 1984-01, Vol.47 (1), p.10-14
Main Authors:	Carberry, William L., Deffenbach, Jeffrey R., Schlender, George, Jensen, Ann, Wetzler, Theodore F., DeWalle, Foppe B.
Format:	Article
Language:	English
Subjects:	Chlorine Disease outbreaks Environmental health Giardia lamblia Public health Surface water Water filtration Water samples Water treatment Water treatment plants Yersinia enterocolitica
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container_title	Journal of environmental health
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creator	Carberry, William L. Deffenbach, Jeffrey R. Schlender, George Jensen, Ann Wetzler, Theodore F. DeWalle, Foppe B.
description	A waterborne outbreak of gastrointestinal illness occurred in Leavenworth, Washington during the spring of 1980. Evidence is provided suggesting that multiple etiologic agents were reponsible for the outbreak, including Giardia lamblia and Yersinia enterocolitica. Monthly sampling of the water supply a year before the outbreak showed a presence of virulent Y. enterocolitica. G. lamblia was recovered from a filtered water sample after the outbreak had been realized. The failure of the sand filtration system and the absence of adequate chlorination and pretreatment at the Leavenworth water treatment plant allowed these pathogens to enter the distribution system. Issues are discussed which are of concern to water treatment plant operators whose utilities draw their water from undeveloped protected watersheds.
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source	JSTOR Archival Journals and Primary Sources Collection
subjects	Chlorine Disease outbreaks Environmental health Giardia lamblia Public health Surface water Water filtration Water samples Water treatment Water treatment plants Yersinia enterocolitica
title	The Leavenworth, Washington Case: Environmental Concerns With a Water Treatment Plant Failure
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