Methods are provided for remediating contaminated soil. The methods may include collecting contaminated soil at a plurality of treatment sites. The contaminated soil at one or more of the plurality of treatment sites may be at least partially contained. Vapors produced from heating soil at one site may be used to heat contaminated soil at another site. A fluid directed to a portion of heated contaminated soil may accelerate heat transfer through the site of contaminated soil or through another site of contaminated soil. A method may include heating contaminated soil from more than one site at substantially the same time. Heating contaminated soil from more than one site at substantially the same time may include in situ and ex situ treatment at a common location.