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Q-2, r. 7.1 - Regulation respecting sand pits and quarries
FrançaisArticle 32
Versions de la disposition
32. Blasting carried out in a quarry must be performed in accordance with the following conditions:
1° no mineral substance is projected outside the quarry;
2° the particle velocity does not exceed 10 mm/s at the dwelling or public institution; and
3° air overpressure does not exceed 126 linear dB at the dwelling or public institution.
In a calendar year, the limit value prescribed by subparagraph 2 of the first paragraph may however be exceeded, up to a maximum of 15 mm/s, only once or up to a maximum of 10% of the total number of blasts during that period.
In a calendar year, the limit value prescribed by subparagraph 3 of the first paragraph may however be exceeded, up to a maximum of 130 linear dB, 2 times or up to a maximum of 20% of the total number of blasts during that period.
In force: 2019-04-18
32. Blasting carried out in a quarry must be performed in accordance with the following conditions:
1° no mineral substance is projected outside the quarry;
2° the particle velocity does not exceed 10 mm/s at the dwelling or public institution; and
3° air overpressure does not exceed 126 linear dB at the dwelling or public institution.
In a calendar year, the limit value prescribed by subparagraph 2 of the first paragraph may however be exceeded, up to a maximum of 15 mm/s, only once or up to a maximum of 10% of the total number of blasts during that period.
In a calendar year, the limit value prescribed by subparagraph 3 of the first paragraph may however be exceeded, up to a maximum of 130 linear dB, 2 times or up to a maximum of 20% of the total number of blasts during that period.
