REFERENCES

To guarantee the confidential character of its services GEOSAN has decided to keep the names of its clients from the private sector confidential. It mainly concerns the manufacturing industry, building promoters, SMEs, petrol companies, public notaries, lawyers, professional federations, international investors and private individuals.

GEOSAN also carried out numerous soil investigations for the public sector , including the European Community, the European Parliament, the Armed Forces, the NATO, the Public Waste Agency of Flanders, the Brussels Institute for Environmental Management, the Brussels Regional Development Agency, the Walloon Institute for Environmental Protection SPAQuE , the Port of Brussels, the Belgian Railways, the Soil Remediation Fund for Petrol Stations, the Federal Buildings Agency, various municipalities in the three Belgian regions. In France GEOSAN worked for ADEME, Voies Navigables de France (French waterways), the urban communities of Lille , Arras and Saint-Omer, etc.

The main intervention areas of GEOSAN are industrial installations, brownfields, building projects, petrol stations, port areas, dumpsites, mines and quarries, protected water collection areas, calamities and dredging materials .

GEOSAN also carries out drills and samplings at the request of other recognised soil experts both in its usual area of activities ( Belgium and France ) and throughout Europe . Within this scope we carried out projects in several countries, including the Netherlands , UK ( Scotland & England ), Portugal , etc.

		GEOSAN carried out the risk assessment on the site of the wastewater treatment plant of Brussels North and assisted in the remediation.

As a result of a rich industrial past this brownfield of approx. 10 ha featured an impressive mix of contamination parameters. GEOSAN carried out the detailed investigation and thus mapped the soil and groundwater contamination plumes. Groundwater modelling was done on the basis of Modflow® in order to assess the distribution risks in this heterogeneous geological context. The remediation works (October 2003 until August 2006) were constantly monitored by a GEOSAN site manager.