Due to various previous uses on the site of a current children's playground, there was a general suspicion of possible pollutant contamination in the soil. Since children regularly spent time playing on the meadow areas and oral ingestion of soil could not be ruled out, the responsible municipality considered a corresponding investigation to be sensible. With object-specific planned and executed investigations, well-founded knowledge about the pollutant concentrations in the soil could be obtained and the all-clear could be given.