Contaminated sites within the meaning of the Federal Soil Protection Act are
- Disused waste disposal facilities and other properties on which waste has been treated, stored or deposited (old deposits), and
- Properties of decommissioned installations and other properties on which environmentally hazardous substances have been handled, with the exception of installations whose decommissioning requires a licence under the Atomic Energy Act (abandoned sites),
which cause harmful soil changes or other hazards to individuals or the general public.
Sites suspected of being contaminated within the meaning of this Act are old deposits and old sites where there is a suspicion of harmful soil changes or other hazards to individuals or the general public.