Langley Soil and Groundwater Investigation and Remediation

The remediation of a heavily contaminated 26 hectare former vehicle assembly site close to Heathrow Airport. End uses for the site were to be one third residential development and two thirds commercial/industrial hard cover.  Targets for the remediation of the site were set appropriately and generally conformed to ICRCL recommendations, if more suitable, Dutch standards were used.

Die Lösungen

Soil Remediation:

53.000 m³ of hydrocarbon-contaminated soil was bioremediated in windrows/biopiles and backfilled

20.000 tons of hazardous waste (PAH and heavy metals) were specially disposed of using selected excavation

Groundwater Remediation:

The amount of l/s that was remediated was adjusted to the progress of the soil remediation.

7.000m³ of groundwater skimmed to remove free-floating product. 150.000m³ of TPH-contaminated groundwater was pumped and cleaned.196.000 m³ of groundwater was processed by air stripping and activated carbon filters to remove volatile organic compounds.

Our services:

Investigation of the site (soil and groundwater) by drilling, trail pits, sampling, analysis, reporting.
Planning and executing the remediation.


    Europe  United Kingdom  

Responsible office:

  • Austria – Salzburg
    INTERGEO Umwelttechnologie und Abfallwirtschaft G.m.b.H

    Robinigstraße 93

    5020 Salzburg

Our services in the project:

Intergeo Services
Chemical Analysis and Laboratory

INTERGEO runs several environmental chemical laboratories which are accredited according to EN ISO / IEC 17025.

Intergeo Services
Soil and Groundwater Investigation

INTERGEO has accumulated over 30 years of experience in Soil and Groundwater Investigation and has a corresponding high core competency.

Intergeo Services
Soil and Groundwater Investigation and Remediation

Intergeo has performed over 10.000 soil and groundwater investigations in Europe and overseas since being founded in Salzburg in 1983. We provide a single source for all services – from the initial investigation to the detailed remediation action plan.

Intergeo Services
Soil and Groundwater Remediation

INTERGEO implements cutting-edge innovation and technology to simplify remedial actions and reduce costs.