A further quantity of diesel laundering waste was discovered dumped in Kilkerley at the weekend.
The 6,000 litres of toxic waste was abandoned at Belrobin with the latest find leading to local councillor Tomás Sharkey calling for stricter measures to be taken against the illegal activity.
He has challenged the authorities to carry out proper forensic investigations of the evidence to help bring those responsible to justice.
He said: “Approximately 6,000 litres of this toxic waste was dumped in the Kilkerley area this weekend. Once again public health and the environment were in danger by the culprits. They have no place in our community.
“This latest incident highlights my growing annoyance that forensic evidence does not seem to be gathered at the scenes of this dumping.
“I have been to many sites where this waste has been dumped and not once have I seen a Garda Síochána forensics team taking evidence. These cubes must have fingerprints on them. Often paint from the van or trailer they were loaded in marks the cubes. There may be tyre tracks from the vehicle that dumped the waste.
“The IBC cubes obviously came from a factory or yard that uses them for their business. Somewhere a business owner must be missing hundreds of expensive cubes.
“I have asked that the multi agency approach including county council officials, Gardaí, Revenue and environmental protection staff give a presentation on how they do their work.
“As a public representative I want to know why forensic evidence isn’t being gathered at these dump sites. I want to know why the scourge of dumping isn’t being properly investigated and who is making the decision not to take this problem seriously,” he said.