Start on site

Nov 2009  - Dec 2009

Site clearance, compound, Japanese Knotweed removal, pump trials, testing

Pre-excavation works

Jan 2010 – April 2010

Cut-off wall/sheet piling, installation of dewatering system

Excavation & infilling

May 2010 – Sept 2011

Main part of project

Decommissioning works

Oct 2011 - Nov 2011

Removal of cut-off wall/sheet piling.  Continuation of air quality monitoring, removal of site set-up