120. The required guarantee is intended to ensure, during the carrying on of the activity and during the cessation, the carrying out of the obligations to which the operator is held pursuant to the Environment Quality Act (chapter Q-2), the regulations, an order or a permit. In the case of failure of the operator, the guarantee shall be used for the payment of the expenses incurred by the Minister of Sustainable Development, Environment and Parks under sections 113, 114, 115 and 115.1 of that Act.