Q-2, r. 46 - Regulation respecting contaminated soil storage and contaminated soil transfer stations

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5. Unless required for an authorized treatment, at no time may contaminated soils be mixed with clean soils or with soils or materials having a different contaminant concentration so that the overall contamination level would change and permit disposal of the soils in a less restrictive manner or, because of the mixing of soils having different contamination levels or different structures, decontamination would be made more difficult.
O.C. 15-2007, s. 5.