Q-2, r. 16 - Regulation respecting the liquid effluents of petroleum refineries

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8. Suspended matter: The effluent standards established in sections 4 and 6 shall apply to all liquid effluents deposited in the environment by a petroleum refinery. However, a petroleum refinery may withdraw from such deposits the suspended matter contained each day in the untreated water supply of the petroleum refinery where the person responsible for that refinery measures the suspended matter in the same way and in accordance with the same frequency and terms and conditions as he measures the contaminants deposited in the environment pursuant to sections 15 to 17.
R.R.Q., 1981, c. Q-2, r. 6, s. 8.