Sean Needham, BSc, PhD, FGS

Sean is a Senior Hydrogeologist with more than 20 years of experience in the assessment and remediation of contaminated land and groundwater liabilities within the UK and Europe.

Sean has gained management and technical leadership experience from many multi-disciplinary projects, specialising in site characterisation, hydrogeological interpretation, groundwater modelling and risk assessment for complex sites including fractured aquifers and DNAPL affected sites. Key experience includes regulatory liaison on behalf of clients, design & build of contaminant transport models (Modflow, Feflow and Frac3dvs), pumping test design & analysis and groundwater abstraction license applications. Sean has also provided Expert Witness Statements for a chlorinated solvent DNAPL contaminated fractured aquifer site on behalf of the Environment Agency, and for a cross-boundary contamination dispute on behalf a multi-national insurance company.

Sean's doctoral research investigated the mobility and attenuation of the recalcitrant Triazine pesticides within the UK fractured Chalk aquifer.