In 1866 there was a further cholera outbreak in London that claimed 5,596 lives, although it was confined to an area of the East End between Aldgate and Bow. At the time that was a part of London which had not been connected to Bazalgette's system, and 93 per cent of the fatalities occurred within the area. The fault lay with the East London Water Company, who discharged their sewage half a mile () downstream from their reservoir: the sewage was being carried upstream into the reservoir on the incoming tide, contaminating the area's drinking water. The outbreak and the diagnosis of its causes led to the acceptance that cholera was water-borne, not transmitted by miasma. "The Lancet", relating details of the investigation into the incident by Dr William Farr, stated that his report "will render irresistible the conclusions at which he has arrived in regard to the influence of the water-supply in causation of the epidemic." It was the last outbreak of the disease in the capital.