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Former Moss Side (Stagecoach) Bus Depot, Manchester Client: GB-Building Solutions/Manchester City Council

Beech Demolition was awarded the specialist contract to demolish the former in the summer of 2011, which was subsequently completed in November 2011. The site was approximately 2.4 hectares and was predominantly covered in a structural frame. The site had been developed in the early 1900`s as a tram shed, operating until early 1950`s when it was converted to diesel driven buses.

Following a Phase I and Phase II geoenvironmental assessment (2011) by Curtins, and following further intrusive site investigation by Beech Consultants (Phase III) it was found that the site had been infilled between concrete slabs, with demolition waste at the end of WWII. Significant contamination was found within the imported infill material, generally organics and asbestos (Crysotile and Amosite), together with diesel contamination of weathered sandstone directly overlying a primary aquifer. There were several underground chambers at the site, containing former fuel tanks and solvents. The diesel found within the underlying groundwater was traced to a buried fuel tank on the site. There were several hot spots of contamination (mainly organics – TPH and PAH) that required some degree of remedial treatment.

Beech Consultants establish a Remediation Strategy that was reviewed and agreed by the Local Authority Contaminated Land Section and the Environment Agency (EA). Beech Remediation were then appointed as the specialist sub-contractor to the Framework Principal Contractor to remediate the site to allow residential development.

The remediation of the site included removal of hazardous waste materials, and the ex-situ bioremediation in winrows of diesel impacted Sands (weathered Sandstone). Groundwater monitoring was undertaken during and following the removal and treatment of contaminated materials at the site, leading to sign off by the EA following validation testing and reportage. Beech Remediation successfully treated the diesel contaminated sands to agreed target levels.

Beech Demolition was awarded the specialist contract to demolish the former in the summer of 2011, which was subsequently completed in November 2011. The site was approximately 2.4 hectares and was predominantly covered in a structural frame. The site had been developed in the early 1900`s as a tram shed, operating until early 1950`s when it was converted to diesel driven buses.

 

Following a Phase I and Phase II geoenvironmental assessment (2011) by Curtins, and following further intrusive site investigation by Beech Consultants (Phase III) it was found that the site had been infilled between concrete slabs, with demolition waste at the end of WWII. Significant contamination was found within the imported infill material, generally organics and asbestos (Crysotile and Amosite), together with diesel contamination of weathered sandstone directly overlying a primary aquifer. There were several underground chambers at the site, containing former fuel tanks and solvents. The diesel found within the underlying groundwater was traced to a buried fuel tank on the site. There were several hot spots of contamination (mainly organics – TPH and PAH) that required some degree of remedial treatment.

 

Beech Consultants establish a Remediation Strategy that was reviewed and agreed by the Local Authority Contaminated Land Section and the Environment Agency (EA). Beech Remediation were then appointed as the specialist sub-contractor to the Framework Principal Contractor to remediate the site to allow residential development.

 

The remediation of the site included removal of hazardous waste materials, and the ex-situ bioremediation in winrows of diesel impacted Sands (weathered Sandstone). Groundwater monitoring was undertaken during and following the removal and treatment of contaminated materials at the site, leading to sign off by the EA following validation testing and reportage. Beech Remediation successfully treated the diesel contaminated sands to agreed target levels.

Accreditations Beech Group Accreditations