Government of Canada / Gouvernement du Canada
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Metal and Diamond Mining Effluent Regulations

Version of the schedule from 2006-03-22 to 2006-10-02:

SCHEDULE 4(Section 3, paragraph 4(1)(a), subsections 12(1) and (3), section 13, subsection 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)


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.

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