Q-2, r. 19 - Regulation respecting the landfilling and incineration of residual materials

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42. The soil used for the daily cover of the residual materials must have a constant minimum hydraulic conductivity of 1 x 10-4 cm/s and less than 20% by weight of particles 0.08 mm or finer in diameter.
The soil may also contain contaminants in a concentration equal to or lower than the limit values set out in Schedule I to the Land Protection and Rehabilitation Regulation (chapter Q-2, r. 37) for volatile organic compounds and in Schedule II to that Regulation for other contaminants. Those limit values do not apply to contaminants that do not originate from human activity. The thickness of the cover layer consisting of such contaminated soil must not exceed 60 cm.
Other material may be used to cover the residual materials if the other material meets the requirements of the first paragraph, does not contain substances that are not accepted at the landfill, and is capable of accomplishing the purposes referred to in the second paragraph of section 41.
The operator must periodically verify, at the frequency specified in the authorization obtained pursuant to section 22 or 31.5 of the Environment Quality Act (chapter Q-2), whether the soils or other materials used to cover the residual materials meet the requirements of the first paragraph. For that purpose, the operator must have representative samples of the soils or materials measured and analyzed and the results of the measures and analyses must appear in the annual report prepared pursuant to section 52.
Despite the foregoing, residual materials may be covered temporarily using materials other than soil that does not meet the requirements of the first paragraph. In such a case, no residual materials may be subsequently deposited until the temporary cover has been removed or brought into conformity with that paragraph.
Contaminated soil or residual materials to be used as cover material may be stockpiled at an engineered landfill only in areas that meet the containment requirements set out in this Regulation and that have not received the final cover prescribed by section 50.
O.C. 451-2005, s. 42; O.C. 451-2011, s. 10.