Rubuta ci gaba don wannan sakin layi - A London a watan Yunin 1866, wata annoba ta gida a Gabas ta Gabas ta kashe mutane 5,596, kamar yadda garin ke kammala gina manyan magudanan ruwa da tsarin kula da ruwa (duba tsarin magudanar ruwa na London); Ba a kammala sashin Gabas ta Gabas ba. Masanin cututtukan cututtuka William Farr ya gano Kamfanin Ruwa na Gabashin London a matsayin tushen gurbatawa. Farr ya yi amfani da aikin da John Snow da wasu suka yi a baya da ke nuna gurɓataccen ruwan sha a matsayin dalilin cutar kwalara a cikin barkewar 1854
Ka yi haƙuri. Matakin da aka ɗauka da sauri ya hana ƙarin mutuwar mutane. A cikin wannan shekarar, amfani da gurbataccen ruwan canal a ayyukan ruwa na gida ya haifar da karamin barkewar cutar a Ystalyfera a Kudancin Wales. Ma'aikatan kamfanin da iyalansu ne suka fi shan wahala, kuma mutane 119 ne suka mutu.