“This is deeply concerning and NRW and Labour must conduct a full investigation immediately. Wales has four times as many sewage discharges proportionately in Labour run Wales than in England.
“The UK Conservative Government are holding water companies to task by subjecting polluters to unlimited penalties, while Labour let dumping to continue without consequence in Wales.
“The Welsh Conservatives have long called for Labour and NRW to hold water firms to account and issue penalty fines. By allowing Dŵr Cymru to continue dumping unchecked, they are enabling the polluting of our waterways.”