FOI has assisted the Swedish Armed Forces in the cleaning-up of the former FOI site in Ursvik, Sundbyberg. This report describes the work regarding sampling, analysis and handling of chemicals that emerged from the remediation of a dumpsite. All together, 111 saples have been analyzed, of which 85 were liquid and 26 solid samples. Many liquid samples contained water or water solutions of organic matter. One water sample contained an oxime with unknown properties. A toxicological analysis showed that it was acute toxic to Daphnia magna. Six samples contained pentachlorethane, which is known to be chronically toxic. One sample contained dibromopentane, which is an irritant to eyes and skin. Some of the 85 liquid samples contained solvents, e.g. xylene, toluene and petroleum products. The solid samples found contained many different chemicals, e.g. sulphur, dyes, metals, polymers, plasticizers, amines, acetates, carboxylic acids. There were about 80 small cans containing a magnesium compound, which probably was a residue from a personal decontamination set (PS 102). Water samples were discarded. All other samples were sent to SAKAB for destruction.