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Murray Einarson
Principal Hydrogeologist – Haley & Aldrich


17 min

How conceptual site models summarise and communicate subsurface conditions for environmental cleanup

A conceptual site model (CSM) is used by the environmental industry to communicate information about the subsurface environment, which is them used for risk assessments and designing effective cleanup programs. Requirements for CSMs are not built into USEPA’s Superfund cleanup program and the essential elements of CSMs have not been standardised. This presentation describes Murray’s 30-year journey developing CSMs for contaminated sites, focusing on work flows to summarise and communicate the essential elements of the subsurface to remediation engineers, risk assessors and environmental regulators.