Black Gold?

Sadly not in this case. But what do you do if you’re digging a hole and it fills with a horrible mixture of black fuel and water? Call Subadra of course! We are able to guide you with all aspects of contaminated ground from waste disposal or how to minimise the impact on your development programme to how to discharge your planning conditions.
The site  in the photo is a filling station that is currently undergoing a full site redevelopment. When the contractor opened up the forecourt to remove the below ground fuel tanks the excavation filled with a heady mix of petrol and diesel that had accumulated over the years around the off-set fill points.
We were on-site within 2hours of being contacted. We collected water and soil samples from the excavation that were run through our in-house hydrocarbon laboratory. The results were issued within 48hours allowing the contractor to efficiently deal with the soil disposal and avoid costly delays to the works programme.

Subadra Appointed to Advise Retail Motor Industry Federation

Subadra have been appointed by the Retail Motor Industry Federation (RMI) to provide specialist environmental advice to their members. The RMI represents the interests of petrol retailers and forecourt operators across the UK. They provide support on matters ranging from contaminated fuel problems to getting a better deal with your fuel supplier.
We join their technical support team in providing practical and sensible advise for all matters associated with fuel leaks, spills and ground contamination issues.
Whether you need guiding through the planning process during a site redevelopment or you suspect you may have had a fuel leak – we can help.
Please contact James Edley(Tel. 01296 739412 or email) for further information.

Subadra win multi-site forecourt investigation package

Subadra have recently been awarded a package of investigation works by one of the major oil companies.  We were selected based upon our continued excellent working relationships with the end client and their project managers , continuing to provide a high quality service and as always being able to offer cost effective site investigation services.

Particular praise was made of the quality of our tender submission, highlighting key areas of excellence and capabilities which enabled the client to quickly and easily conclude that we were the service provider best suited to complete the works.

The works package includes investigating 12 retail filling sites using our GeoProbe direct-push drilling system.  The majority of the chemical analysis will be completed by our UKAS accredited laboratory. The reporting deadlines for the package is six weeks from the point of instruction.  Contact value: ~£55k+

There are always cost savings to be made when multi-site packages are being completed and we like to pass these savings onto the client.  If you have a small network of filling station sites or are a ‘Top-50’  operator and need an environmental survey get in touch to discuss our highly competitive rates.

Foundations for Key City Data Centre

Whilst much of our work in carried out in the provinces we sometimes dabble with high finance in the City.

Subadra played a key role in the development of an £80 million multi-storey data centre facility in London’s docklands area. We were brought in at the inception of the project to carry out a geotechnical and environmental investigation to determine ground conditions.

Our investigation comprised a network of boreholes across the development area that were used to collect soil samples for analysis and groundwater and hazardous gas monitoring points.

The site was especially tricky geotechnically, comprising areas of in-filled docks, some highly contaminated and others containing very soft silts and clays.

We used the data to assist with foundation design and the classification of waste soil.

Contract value: £20-50k

From Scrapyard to Parkland

Subadra have completed the successful transformation of a former scrap yard site into a public open space – on time and under budget.
Subadra, acting as Principal Contractor, have recently completed the investigation, remediation and landscaping of a 0.3ha former scrap yard site in Harmondsworth following an eight week program of works. Following detailed site characterisation works, we devised a remedial strategy comprising the targeted excavation of contaminated soils using GPS surveying equipment. Contamination issues included soils impacted with lead, hydrocarbons and solvents and additional impact of underlying groundwater. We pre-treated excavated soils on site, with over 100tonnes of material reclaimed for re-use on site.

Over 500tonnes of soil required offsite disposal to recycling facilities and an additional 30tonnes of plastic waste and 8tonnes of metal were recovered. Groundwater was treated with in-situ oxygen release compounds. Following remedial works we have completed detailed landscaping of the site, importing over 800tonnes of top soil and foundation materials, meeting the Client’s requirements to return the site to public open space. The site will shortly form part of the larger Harmondsworth Moor parkland complex.

Contract Value: £100-250k