88. Where the market value of a right is established according to a use of the immovable other than the use made as at the date of expropriation, it must be adjusted by deducting, if applicable,(1) the costs of demolishing the existing structures; and
(2) the costs of work related to decontaminating the soil of the immovable if the holder of a right in the immovable is required to decontaminate the immovable under a law of Québec or of Canada or under a contract, or in order to bring it into conformity for the intended use.