Soil diagnosis and remediation


Soil diagnosis and remediation


CEMOSA is a company which is committed to the environment. Its comprehensive contaminated soil management department carries out activities relating to research and remediation of abandoned industrial sites and wasteland.

The primary objective of its activities is to turn degraded areas back into environmental assets and contribute to the generation of soil fertility. All of these activities are carried out in accordance with the principles of sustainability and circularity of the resources used through a detailed and personalised study of each recovery option.

The comprehensive contaminated soil management department is made up of expert qualified staff to assist the Client through all the phases of environmental liability management, inside and outside the country, offering innovative solutions through close collaboration with the most important environmental institutions.

Moreover, CEMOSA has ENAC Accreditations as Contaminated Soil Inspection Entity, according to UNE EN ISO / IEC 17020:2012. See Certificate and Technical Annex.

CEMOSA is registered in the Register of Collaborating Entities for Environmental Quality in Andalusia, according to Decree 334/2012, in the field of Soil Quality, Registration no. REC140; in the Generalitat Valenciana with Registration no. 158/ECMCA and in the Generalitat de Cataluña, according to Decree 60/2015, with Registration no. 145-EC-SOL-R, in the field of Soil Quality.

The list of policy documents is available to customers and administrations upon request by e-mail to

The complaints procedure is available to the interested parties upon request.

Committed to innovation and sustainable development

Study and Consultancy

  • Exploratory and detailed soil research
  • Planning of representative soil-gas campaigns
  • Technical and economic studies of decontamination options
  • Remediation system optimisation studies
  • Heavy metal bioavailability study
  • Contaminant fate and transport (F&T) modelling
  • Water table lowering studies
  • Calculation of general benchmarks
  • Calculation of natural background values for heavy metals
  • Analysis of risk to human health and the environment (LEVEL II)
  • Analysis of Level III risk: with speciation of metals and direct measurement of soil gases
  • Preparation of risk maps
  • Sustainable decontamination technologies
  • Hydraulic and physical barriers
  • Surface insulation measures (capping)
  • Analysis of chemical compounds in subsoils
  • In situ determination of physical and chemical parameters
  • Hydrocarbon analysis using Petrolag
  • Technical and administrative advice in all management phases
  • Compliance with environmental regulations and requirements
  • Assistance in the national and international arena
  • Land sales, mergers and acquisitions (due diligence)

Project Implementation

  • Installation of vapour sensors
  • Measurement of volatile and semi-volatile compounds
  • Monitoring and interpretation of natural attenuation of the aquifer
  • Environmental due diligence.
  • Segregation of contaminated soils and earth moving
  • Biopiles and landfarming
  • Soil washing
  • Thermal desorption
  • Soil venting and bioventing
  • Direct-push injection techniques
  • Phytoextraction and phytostabilisation
  • Mobile washing and thermal desorption units
  • Conventional pumping
  • Air sparging
  • Biosparging
  • Monitored natural attenuation
  • High vacuum multi-phase extraction
  • Bio-treatability test
  • Venting tests
  • Soil vapour extraction test
  • Washing and chemical oxidation test
  • Well tests (slug test, Lefranc, Lugeon)
  • Aquifer pumping tests
  • Bail-down tests

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