Every place raw sewage is dumped into our rivers and exactly how often it happens

Raw sewage has been dumped into Welsh waterways more than 100,000 times in just 12 months.

Data from Welsh Water records the amount of times sewage has been released into Welsh rivers and streams to relieve pressure on the sewage network.

Part of this problem comes from the fact we have a combined sewer network. According to Welsh Water, when the sewer system is operating normally, combined sewers collect rain water that runs off gutters, drains and roads, as well as sewage. This wastewater is taken to treatment works, where it is cleaned, treated and returned safely to the environment through watercourses or the sea.