On the 22nd of February 2011, a 6.3 magnitude earthquake struck the New Zealand city of Christchurch; causing extensive damage to the central city area. This earthquake followed an initial 7.1 magnitude earthquake on the 4th of September 2010. Contract Resources began working on damaged sewage and other pipelines on the 27th of February 2011.
Since the initial earthquake in September, over 7,000 aftershocks and earthquakes of varying degrees have been recorded; including 26 over 5.0 magnitudes and 2 over 6.0 magnitudes.
The work is ongoing, and to date Contract Resources has been located in the suburbs of Aranui, Parklands, Burwood, Wainoni, Bromley, Bexley, St Martins, Spreydon, Shirley, Richmond, Dallington, Avondale, New Brighton, South Brighton, and Southshore; with a total distance of approximately 200km of sewer line cleaned.