Contaminated Sites & Soils

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Contaminated Sites & Soils: Environmental expertise for effective management

Our expertise in environmental engineering provides you with effective solutions for the management of contaminated sites and soils. With our specialized approach, we ensure compatibility between environmental conditions and intended uses. Our detailed studies and recommendations for remediation and pollution management are based on rigorous cost and benefit evaluations. Furthermore, we offer certification services in compliance with current regulations, ensuring that soil studies are considered to ensure compatibility between soil conditions and construction or development projects. Our approach also includes quantitative assessments of health risks, aiming to demonstrate the compatibility of intended uses with current health standards. With our expertise, you can be assured of effective environmental management and optimal consideration of your needs.

Management Plan (MP) and Residual Risk Analysis (RRA)

We develop management plans aimed at ensuring compatibility between environmental conditions and intended uses (A320). In these studies, we outline the entire site management approach by justifying the best pollution remediation or management techniques identified based on a cost-benefit analysis (A330) and the selected construction or development choices.

ALUR Certification

The "ATTES" mission includes the certification to be attached to building permits (PC) or development permits in areas with soil information (SIS) or for change of land use (ALUR law). This mission is carried out in accordance with the requirements of Article 3 of the February 9, 2022 decree and Parts 1 and 5 of the NFX-31-620 series of standards (December 2021 version).

This certification guarantees the completion of a soil study and the consideration of this study to ensure compatibility between the soil conditions and the future use of the site in the design of the construction or subdivision project.

Interpretation of Environmental Conditions (IEM) & Quantitative Evaluation of Health Risks (EQRS)

In order to demonstrate the sanitary compatibility of the intended uses in development projects or those around the site, we:

Our Certifications and Commitments

ixsane is LNE certified according to the service provider reference standard in the field of contaminated sites and soils, in connection with the NFX-31-620 standard. Since July 2015, ixsane has held certification for Domain A, "Studies, Assistance, and Control," and since January 2020 for Domain D, "Issuance of ALUR Certificates." This certification aims to "operationally and genuinely improve the quality of professions in the field of contaminated sites and soils" and enhances trust in our relationships with clients by ensuring the achievement of service commitments, such as client communication, the establishment of a qualified team, the use of suitable equipment, and subcontracting control.

LNE Certification

ixsane is technically capable of performing Domain A services (studies, assistance, control) and Domain B services (rehabilitation works engineering). However, we would like to inform you that only Domain A services are covered by the service provider certification in the field of contaminated sites and soils. Nevertheless, ixsane possesses the skills and references necessary for the successful execution of services related to Domain B (decontamination works engineering).

References

ADEME, French Agency for Ecological Transition

ADEME commissioned ixsane to conduct an interpretation of the environmental conditions (IEM) of the EUREMALCO industrial brownfield site in BELLEU (02), in order to assess its environmental state and verify if the pollution detected in the soils and groundwater on-site during previous studies could have contaminated other off-site matrices (soils, groundwater, soil gases, and ambient air in residential areas). The EURELMALCO company housed metal treatment and enameling activities. The services performed during this study included:

  • Site visit - service A100;
  • Historical, documentary, and memorial study - service A110;
  • Assessment of environmental vulnerability - service A120;
  • Neighborhood survey, identification of private wells, and establishment of a prospective investigation program - service A130;
  • Field investigations - service A200 (boreholes and soil sampling in residential areas);
  • Groundwater sampling - service A210;
  • Soil gas and ambient air sampling - services A230 and A240;
  • Interpretation and conclusions on the environmental quality of the site and establishment of appropriate management measures.

Logo of ADEME

Aerial photograph of site

Current state of the site

SOGEPROM-PROJECTIM, Société Générale Group

ixsane was commissioned by SOGEPROM-PROJECTIM and NHOOD to conduct an additional soil pollution assessment within the former brownfield site "TRANSPOLE" located on Avenue de la République in MARCQ-EN-BAROEUL (59) as part of the characterization of future excavated materials for the second basement level planned beneath certain collective housing units. For this project, the following services were carried out:

  • Development of a prospective investigation program - service A130;
  • Field investigation - service A200;
  • Interpretation of soil analysis results - service A270;
  • Definition of management measures;
  • Recommendations and conclusions regarding development.

Logo of SOGEPROM-PROJECTIM

Geological cross-sections

Soil borehole investigations were conducted

3F Notre Logis, Action Logement Group

3F Notre Logis commissioned ixsane to conduct a soil and soil gas pollution assessment (DIAG) as well as a Management Plan (PG) with Residual Risk Analysis (ARR) within a site located in Tourcoing for a collective and individual housing project, as well as a daycare center. For this project, the following services were performed:

  • Site visit - service A100;
  • Development of a prospective investigation program - service A130;
  • Field investigations - service A200;
  • Installation of piezometers and soil gas sampling - service A230;
  • Interpretation of soil analysis results - service A270;
  • Development of a conceptual model for the site (existing and projected);
  • Recommendations and conclusions regarding development;
  • Analysis of health implications (service A320);
  • Identification of possible management options and cost-benefit analysis (service A330).

Logo of 3F Notre Logis

Soil borehole plan

Field interventions at the study site