If underground storage tanks were closed properly in-place (i.e. filled with a solid-inert material) prior to 1974, and the tanks are now pulled with no evidence of a release, is sampling required?
Underground Storage Tanks properly closed prior to 1974 with a solid inert material do not require sampling upon removal unless there is evidence of contamination. Any solid material generated from the tank removal should be profiled for disposal (industrial solid waste) or a one time soil re-use via RECAP should be proposed. However, owners/operators of these sites may have liability should it be shown that a release to the environment did occur.
