Former Reynard Mills Industrial Estate, Brentford

Client:  Hill Partnerships (Special Projects)
Date: 2016
Nature of works: Remediation & Enabling
Contract Value: £1.45m

Soilfix were contracted to carry out site enabling, remediation works and development platform preparation

The Challenge
Hill Partnerships are developing the 3Ha former Reynard Mills trading estate to residential housing and apartments for Notting Hill Housing Association.  Due to the widespread presence of asbestos containing materials (ACMs) within made ground, initial estimates of over £4million rendered the scheme commercially non-viable.

Our Solution
Soilfix designed and implemented a sustainable, cost effective remediation & development platform preparation solution, all in accordance with a Materials Management Plan (MMP) developed in accordance with CL:AIRE Code of Practice (CoP), including:

• Breakout of surface / subsurface concrete slabs & removal of sub-structures including mass concrete storage tanks & basement structures. Processing to 6F2 specification;
• Targeted remediation of identified hydrocarbon contaminated source areas;
• Targeted remediation of gross asbestos contaminated areas, including basement structures infilled with AIB & lagging materials;
• Site-wide reduced level excavation & processing, including hand-picking of ACMs prior to re-use or disposal as de-categorised non-hazardous waste;
• Comprehensive preparatory earthworks in accordance with the clients requirement to ensure that soils to be excavated during construction did not contain ACMs above trace concentrations;
• Development platform preparation using cement stabilised soils capped with site-won crushed materials; and,
• A comprehensive programme of third party environmental monitoring and site verification to satisfy various stakeholders.

Soilfix completed all works on programme to allow unimpeded progress of piling and construction works, with 90% materials recovery achieved out of 25,000m³ materials subjected to breakout & excavation.