Environment Agency regulatory position on when you can accept non-hazardous filter cake waste from soil and aggregate washing facilities, at landfill and deposit for recovery sites.
Source
https://www.gov.uk/government/publications/accepting-filter-cake-waste-from-soil-and-aggregate-washing-facilities-rps-336Canonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.