It also suggested EU law would be contravened on a few issues such as the lack of pre-treatment of waste and also too much hazardous waste being produced by the plant and disposed of to landfill.

BBC: Gloucestershire

New companies often send hazardous waste out of their plants because they have not yet invested in on-site treatment equipment, which allows them to recycle some waste.

NPR: Solar Industry Grapples With Hazardous Wastes

Since the early 1980s, the EPA has included waste created from zinc phosphate processing on its list of FO19 hazardous wastes, which requires expensive additional treatment.

FORBES: Magazine Article