The location of the test sitewas Friedewald, Germany. Thewidening
of an existing highway required the removal of an old clay pigeon shooting
range (see Fig. 7). Since such clay material is considered hazardous
waste under German law, the site required specialized excavation and
treatment before any of the clay material could be repurposed. The
estimated area of specialized excavation had a size of 17,000 m2
(200 × 85 m) and a specified depth of several centimeters over the
entire area.