Rubuta ci gaba don wannan sakin layi - A watan Yunin 1866, wata annoba ta gida a Gabas ta Gabas ta Landan ta kashe mutane 5,596, kamar yadda garin ke kammala gina manyan magudanan ruwa da tsarin kula da ruwa; sashin Gabas ta Gabas bai cika ba. An kuma haifar da yawan jama'a a cikin East End, wanda ya taimaka cutar ta yadu cikin sauri a yankin. 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 dā, ya nuna cewa gurɓataccen ruwan sha ne ya jawo cutar kwalara a shekara ta 1854
Ka yi haƙuri. 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'aikata da ke da alaƙa da kamfanin, da iyalansu, su ne suka fi shan wahala, kuma 119 suka mutu.