EXPERTISE FOCUS: Large scale industrial site
TENDER VALUE: £0.5M
CONTRACT: CARRINGTON REDEVELOPMENT
CLIENT: HIMOR CARRINGTON LTD.
The investigation encompassed a former petrochemical site within Carrington, Trafford, and Greater Manchester as well as other offshoot areas of interest immediately adjoining the main site. Accordingly for manageability and future development planning the investigation was subdivided into four key area each having different environmental characteristics.
At the time, principal ecological constraints included breeding birds, Great Crested Newts (GCN) and badgers. In addition, steps were put in place with respect to tree root protection. Due to the potential presence of GCNs, toolbox talks were given to all site staff detailing the measures to be undertaken should evidence be found in proximity to the exploratory hole locations. A qualified Ecologist was present on site for the duration of the site works and fingertip searches undertaken as required. Non-
Specialist Continuous Multichannel Tubing (CMT) were installed into selected boreholes to allow discrete depth monitoring and sampling of groundwater across a range of depths. The CMT wells were installed using centralisers to maintain verticality at approximately 3m intervals. Each response zone was carefully backfilled with gravel and bentonite as appropriate.
To reduce the risk of cross contamination all equipment (including drill bits, casing and excavator buckets) was washed down using a pressure washer after the completion of each exploratory hole. A set-
Management of the long-
Maintaining good levels of moral within the site work force in an environment that was significantly challenging was extremely important throughout the main investigation and subsequent long-