Firefighters were called to a blaze during Easter at a site in Ellesmere, Shropshire, part of the Tudor Griffiths Group.
A statement from Shropshire Fire and Rescue Service said seven fire appliances were mobilised and Environment Agency (EA) staff attended the blaze, which involved a large quantity of plastic.
The BBC reported that about 100 tonnes of plastic was on fire. Fire station manager Jon Temple said: “We do not yet know the exact cause but it is likely to be material within the waste which has caused the combustion.”
An EA spokeswoman said staff were monitoring the water runoff to minimise the impact on the surrounding area.
TG Waste Services operates a landfill site and MRF at Wood Lane, Ellesmere, offering bulk waste disposal.
- Meanwhile, London Waste has said that operations were restored on Sunday evening at its Edmonton EcoPark waste transfer centre after fire on Saturday night.
It said there were no injuries or damage to buildings or equipment. The cause is as yet unknown and an investigation is underway.