Jarmo Koljonen works as a Department Manager of Site Solutions unit, Finland. He has more than 20 years of expertise in environmental engineering and consulting. His main area of expertise is related to groundwater research. He has been responsible for various types of projects, such as investigation of groundwater abstraction sources, groundwater protection planning, investigations and risk assessment of soil and groundwater contamination, remediation (e.g. in situ) of contaminated soil and groundwater.