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Manchester, Salford, Cadishead

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History

The site had been in the ownership of Clariant Chemicals since 1970, and used predominantly as a tank storage facility for oil-based products. Although well managed by Clariant Chemicals, previous site owners from the 1950s onwards had not been as diligent, resulting in high levels of oil-based product contained within the soils and ground water

Aware of the historic liability, Clariant commenced a series of investigations to determine the extent of this legacy prior to marketing the site for disposal

It was extremely important to Clariant that the successful bidder had the ability, expertise and financial standing to result in both a safe transfer of environmental liability and also be capable of bringing the site back into use within the community

Through an informal tender process, Harrow Estates was chosen as the successful party to acquire the site.

Approach

This land was acquired with an outline residential development. However, the consent lacked commercialism and was not responsive to the residential market operating in the locality. In addition, no detailed progress had been made in dealing with this heavily contaminated site, despite numerous reports over many years

Led by Harrow’s technical team, a detailed remediation strategy was prepared and submitted together with development platforming proposals to the Local Planning Authority

Having acquired the site in 2004, Harrow’s technical team commenced work on preparing a detailed remediation strategy together with platforming proposals to the Local Planning Authority

In parallel with the above remediation application, a more detailed residential proposal was submitted seeking to increase the capacity of the site

Both applications were subsequently approved, the outcome of which was consent for 350 residential units capable of multi-phased implementation

In 2008 a consent for a further 42 units was achieved for an adjacent land parcel which had been aquired to promote comprehensive development.

Status

Post remediation Groundwater monitoring is now complete at the site and the Environment Agency have accepted the site no longer poses a significant risk to groundwater and evnironmental sign-off has been achieved from Urban Vision on behalf of Salford City Council.

Images

Aerial view of former tar distillery | Harrow Estates plc
Purpose-built groundwater treatment plant | Harrow Estates plc
Visual evidence of contamination | Harrow Estates plc
Odour mitigation equipment | Harrow Estates plc
In-situ groundwater treatment system | Harrow Estates plc
Final surface restoration | Harrow Estates plc