Initiatives in the field
29.06.2005

Cleaning up an old industrial site

Since August 2005, Pollution Service has been carrying out the clean up of a former industrial landfill site in southeast France. Located on a plateau high in the mountains, the site was used between 1960 and 1977 for dumping chemical substances (solvents, aromatics, phenols and ketones), which have migrated to a depth of 30 m and contaminated the water table as well as a mountain stream. The clean up operation includes 57 bore-holes involving total drillings of 1,400 m. The soil is treated by vacuum extraction and the water table has been pumped by 35 submersible pumps: the extracted water and air are treated above ground. Over a 31-month period, 42.5 tons of pollutants have been recovered.

A clean up project requires a high sense of responsabilities from the contractor in charge:

  • As with all its jobs, Pollution Service has run the contract in accordance with integrated safety (OHSAS 18001 & GHESE), environmental (ISO 14001) and quality (ISO 9001) certifications.
  • To minimize the environmental footprint of the environmental techniques themselves, Pollution Service manufactured an innovative, high-performance bio-filter made from branches and second hand containers, which operates side-by-side with state-of-the-art equipment.

    The project purpose is to secure the site permanently.
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- polluserve@pollution-service.colas.fr