Land and Water Services Ltd were contracted by the client to eradicate New Zealand Pygmy weed (Crassula) from an exposed mud flat in a lake at Layer-de-la-Haye in Essex. Works were carried out according to best practice with initial tree clearance and containment methods including the installation of a silt screen to prevent any water borne contamination.
Using Land and Water’s specialist low ground pressure amphibious excavator and tracked dumpers removal of the material plus a 2m depth of sand from the bar took place. All vegetation and spoil was buried on site in specifically prepared pits. Transport routes were protected and high levels of house keeping maintained including washing down of vehicles, daily site inspections and decontamination procedures throughout the contract.