The site comprised approximately 4.2Ha of former industrial land covered with hardstandings. Underlying soils were impacted with a range of contaminants including Petroleum range and Polycyclic-Aromatic Hydrocarbons, Heavy Metals, Asbestos Containing Materials, Spent Alum Shale and the regionally significant Leblanc process waste – Galigu. Redstart broke out all slabs and relict foundations. All suitable hardstandings were processed to form recycled aggregates including certified 6F2, MOT 1 and pipe bedding. Soils were re-engineered to achieve a demanding a geotechnical specification. Suitable site won soils were excavated and stockpiled for use in garden areas. A zero cut fill balance was achieved and no materials were disposed of offsite saving the client huge sums of money.