Recently, owing to contamination from the textile dye waste
generated by factories that are situated
along the Kelani river, the water supply
to the city of Colombo got seriously
disrupted. According to reports, there
are several such factories along the
river's banks which have been discharging toxic chemicals in absence of proper affluent controlling device
installed in them. The poisonous elements found in the
water are toxic even in a measure of parts per million.