Investigation of contaminated sites, risk analysis

Contamination surveys

  • Contamination surveys represent a range of services designed to verify and determine the spatial extent and the level of contamination of the geological environment, including data search, reconnaissance of the site, drilling, sampling and analysis, evaluation of results.
  • Depending on the objectives of given problems is the contamination survey conducted either separately or is often a part of larger projects, such as environmental audits, risk analysis, pre-remediation surveys or hydrogeological studies and assessments.
  • Works are carried out in accordance with the Guidelines of MoE for the contamination survey from 2005 and for the evaluation of pollution level is used MoE Guideline "Indicators of pollution" (soil and groundwater) from 2014.

Risk analysis

Risk analysis is processed in cases where there is a suspicion of the existence of contamination threat for surface water or groundwater or other adverse effects of contamination on human health or environment. Risk analysis is the decisive tool for the management and elimination of risks associated with contaminated sites.

The goal of risk analysis is to evaluate existing and potential risks of the impact of potential contamination of the rock environment (soil, groundwater, soil gas) on the environment and human health. As part of the risk analysis is also evaluated possible threats in the future, resulting from the possible spread of contamination or changes in the functional use of the territory. Remediation measures are set out based on the assessment of the seriousness of risks, including the determination of target parameters of the remediation.

Risk analysis is carried out in accordance with the Guidelines of MoE "Risk analysis of the contaminated area" from 2011 and a binding outline of the report referred to Decree No. 369/2004 Coll. for designing, implementing and evaluating geological work.

Feasibility study

The company EUROGAS Inc. produces the feasibility study in the frame of remediation of contaminated sites. The feasibility study is the basis for the final selection of remedial design and based on this selection the remediation project is processed. The primary value of the feasibility study is that even in the pre-project phase can greatly reduce the uncertainties and risks associated with the realization of remedial measures.

The purpose of the feasibility study is to compare different variants of remediation process and technologies from the point of view of technical, economical aspects and the specific site conditions. The goal of these activities is to select an optimal remediation method to achieve the target limits (reduction of risk to an acceptable level) within acceptable financial means and within the required deadlines.

The feasibility study is processed in accordance with the methodology of the Ministry of Environment “Policy for the feasibility study processed within remediation measures of contaminated sites” from 2007.

Environmental monitoring

Monitoring is used to observe the quality of environment´s components, especially groundwater and surface water. Another aim of monitoring is to check the effectiveness of the remedial activities. Based on the obtained results and their evaluation, if necessary, further measures are proposed.

Within our services, we offer long and short term quality monitoring (hydrochemical, bacteriological and ecotoxicological assessment) of groundwater and surface water of the contaminated sites in relation to current legislation, including the measurement of water regime.

Specialists of EUROGAS Inc. have the necessary experience in their fields and many years of experience with the realization of the above-mentioned activities.