A Leeds firm has been ordered to pay £28,500 after an enquiry into the illegal handling, storage and export of hazardous waste.
Waste from PackCare Ltd, of Selby Road, Leeds, which reconditions containers, was traced back to the company after it was found at a recycling business in Triangle, Sowerby Bridge, where dangerous effluent was found to be leaking into the River Ryburn.
Illegal acts were unearthed when the Environment Agency investigated reports of dead fish in a pond fed by the river in 2009.
Crystal Recycling Ltd, which operated at the Triangle site, was found to be storing plastic containers, from which liquids were seen to be leaking onto the ground before entering the water, while not having an environmental permit or planning permission for a waste facility.
The effluent was 25 times more polluting than raw sewage when it entered the water, but was diluted by the fast current.
The PackCare Ltd waste was shredded plastic, contaminated with residues of resins, dyes and glues or rainwater which had been contaminated with such liquids, some of which were hazardous.
Waste from PackCare was also found to have been sent to a plastics processing firm in Merseyside which was not equipped to handle liquid waste.
The case saw fines totalling £10,000 and a suspended jail term handed out between two firms and four individuals. PackCare Ltd admitted one charge, was fined £1,000 and ordered to pay £27,500 costs at Bradford Crown Court.