• An extensive area of groundwater under forest and disused commercial property is impacted with fuel due to a large historic spill incident.
• Pilot trials of RegenOx® and ORC Advanced® resulted in a 95-100% reduction of the Petroleum Hydrocarbon contamination in the aquifer.
• Due to this success, regulatory approval was given for the first phase of remediation in autumn 2013. Phase II started in 2015 and site closure is expected in 2017.

RGS 90 has been commissioned to undertake the remediation of a former large military fuel depot. A number of pollution events had been recorded during its 40 years use. The largest was an explosion in 1958, where 14,000 m3 of petroleum products were released with around 6,000 m3 reaching the wider environment. An initial proposal provided by the problem holder consisted of biosparging and chemical oxidation using more than 1 million litres of hydrogen peroxide. RGS 90 approached REGENESIS with concerns regarding the inherent environmental and H&S risks, as well as its validity due to the low permeability and heterogeneity of the site.