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Under Part 8 of the NEM:WA (2009), site assessment reports are required for land that is significantly contaminated. A contaminated site investigation forms the basis of the site assessment report, and typically involves a desk-top/site walkover evaluation of the site (Phase 1), sampling of the potentially affected matrices (soil or groundwater) (Phase 2), identification of human health and/or environmental risk, and reporting on the results. With extensive experience of sites contaminated with petroleum hydrocarbons, DNAPLs, and metals, Dr Mills is very familiar with the investigation and reporting requirements for contaminated sites.
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Services
- Planning and implementing Phase 1 and Phase 2 investigations – including site interviews, siting of sampling locations, collection of samples, determining appropriate analytical suite, liaison with laboratory.
- Interpretation of data within the context of the relevant regulations – The first level of definition of sites that require remediation is as per the National Norms and Standards for the Remediation of Contaminated Land and Soil Quality (R331 of NEM:WA, 2014). Development of a conceptual site model, the source-pathway-receptor concept and following a risk-based approach can be used for a second tier evaluation of the requirement for remediation.
- Identification of potential mitigation measures - For sites which are found to be contaminated and requiring remediation, Dr Mills can provide insights into the available remediation alternatives.
- Reporting – reporting is completed as per the requirements of the Framework for the Management of Contaminated Land (2010).
- Technical peer review of contaminated land assessment investigations and reports.
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