sentences:  In 1866, during a cholera pandemic outbreak, where 5,973 Londoners perished, the East London Water Company was found guilty of supplying contaminated water taken from River Lea and stored into open reservoirs.Dead eels were found in water pipes, and foul water taken from the reservoirs and pumped into the main supply.The Metropolis Water Act 1902 amalgamated the eight private water companies into the Metropolitan Water Board, whose members were chosen by the various local authorities of the metropolitan area.