Metal Mining Effluent Regulations (SOR/2002-222)

Regulations are current to 2017-05-11 and last amended on 2016-06-22. Previous Versions

SCHEDULE 4(Section 3, paragraph 4(1)(a), subsections 12(1) and (3), section 13, subsections 15(1), 19.1(1) and 20(1), paragraphs 21(2)(b) and (f), 24(1)(a) and 34(1)(b), subsection 34(3), paragraphs 34(4)(a) and (5)(a) and (b), 35(2)(b), 36(d) and 37(1)(a) and Schedules 5 and 7)

Authorized Limits of Deleterious Substances

ItemColumn 1Column 2Column 3Column 4
Deleterious SubstanceMaximum Authorized Monthly Mean ConcentrationMaximum Authorized Concentration in a Composite SampleMaximum Authorized Concentration in a Grab Sample
1Arsenic0.50 mg/L0.75 mg/L1.00 mg/L
2Copper0.30 mg/L0.45 mg/L0.60 mg/L
3Cyanide1.00 mg/L1.50 mg/L2.00 mg/L
4Lead0.20 mg/L0.30 mg/L0.40 mg/L
5Nickel0.50 mg/L0.75 mg/L1.00 mg/L
6Zinc0.50 mg/L0.75 mg/L1.00 mg/L
7Total Suspended Solids15.00 mg/L22.50 mg/L30.00 mg/L
8Radium 2260.37 Bq/L0.74 Bq/L1.11 Bq/L

NOTE: All concentrations are total values.

  • SOR/2006-239, s. 25.
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