The investigations were performed on sites contaminated with explosives and their related metabolites. My presentation consists of the following chapters. Firstly, I give some information about the Situation in Germany as regards explosive contaminated sites. Further, I describe the processing phases for the site investigation, in brief and then examining some examples of processes for historic inquiry, orientation and detailed investigation and a remedial investigation. The last mentioned was funded as a project by the Federal Ministry for Education and Research – Investigation on Remediation of Explosive Contaminated soil, including the testing of large scale remediation methods. Finally I give some information in brief about a project where natural attenuation processes in explosive contaminated sites were investigated, and some results in the summary. Before starting my presentation, I give a brief description of our firm's credentials in the field.