A blaze at an RDF facility in Saltney, North Wales is being attended after some recycling caught fire, producing plumes of black smoke.
The fire broke out yesterday morning at River Lane Industrial Estate, less than a year since another blaze at the same site.
Natural Resources Wales (NRW) said the smoke has now subsided and firewater run-off is not expected to affect the River Dee.
NRW duty tactical manager, Ann Weedy said: “Contractors have removed some of the waste from the building to allow the Fire and Rescue Service, who have two appliances, an aerial ladder platform and a high volume pump still at the incident, to extinguish any hotspots.
“Our officers are continuing to work with North Wales Fire and Rescue to monitor the area for any environmental impact.”
Five fire service vehicles attended the scene when the fire broke out at 11.39am on 13 May.
This is the second incident in a year at the site, operated by Lancashire Fuels 4 U, following a blaze in May 2014 that was put out a week after piles of waste caught fire.
Weedy said: “NRW issued Lancashire Fuels 4 U with a notice to remove waste from their site at River Lane in December 2013. The company has appealed against the notice and legal proceedings are ongoing.”
MRW was unable to contact Lancashire Fuels 4 U.