Metal and Diamond Mining Effluent Regulations

Version of the schedule from 2018-06-01 to 2024-11-26:

SCHEDULE 3(Subsections 1(1) and 12(2) and subsection 4(2) of Schedule 5)Analytical Requirements for Metal or Diamond Mining Effluent

TABLE 1

Item	Deleterious Substance/pH/temperature	PrecisionFootnote for TABLE 1 ¹	AccuracyFootnote for TABLE 1 ²	Method Detection Limit (MDL)
	Column 1	Column 2	Column 3	Column 4
1	Arsenic	10%	100 ± 10%	0.0025 mg/L
2	Copper	10%	100 ± 10%	0.001 mg/L
3	Cyanide	10%	100 ± 10%	0.005 mg/L
4	Lead	10%	100 ± 10%	0.0005 mg/L
5	Nickel	10%	100 ± 10%	0.0125 mg/L
6	Zinc	10%	100 ± 10%	0.010 mg/L
7	Suspended Solids	15%	100 ± 15%	2.000 mg/L
8	Radium 226	10%	100 ± 10%	0.01 Bq/L
9	Total ammonia	10%	100 ± 10%	0.05 mg/L expressed as nitrogen (N)
10	pH	0.1 pH unit	0.1 pH unit	Not Applicable
11	Temperature	10%	± 0.5 °C	Not Applicable

Return to footnote ¹Relative standard deviation at concentrations 10 times above the MDL.
Return to footnote ²Analyte recovery at concentrations above 10 times the MDL.

TABLE 2

Item	Substances/hardness/alkalinity/electrical conductivity	PrecisionFootnote for TABLE 2 ¹	AccuracyFootnote for TABLE 2 ²	Method Detection Limit (MDL)
	Column 1	Column 2	Column 3	Column 4
1	Aluminum	10%	100 ± 10%	0.005 mg/L
2	Cadmium	10%	100 ± 10%	0.000045 mg/L
3	Chloride	10%	100 ± 10%	60 mg/L
4	Chromium	10%	100 ± 10%	0.00445 mg/L
5	Cobalt	10%	100 ± 10%	0.00125 mg/L
6	Iron	10%	100 ± 10%	0.15 mg/L
7	Manganese	10%	100 ± 10%	0.005 mg/L
8	Mercury	10%	100 ± 10%	0.00001 mg/L
9	Molybdenum	10%	100 ± 10%	0.0365 mg/L
10	Nitrate	10%	100 ± 10%	1.46835 mg/L, expressed as nitrogen (N)
11	Phosphorus	10%	100 ± 10%	0.05 mg/L
12	Selenium	10%	100 ± 10%	0.0005 mg/L
13	Sulphate	10%	100 ± 10%	0.6 mg/L
14	Thallium	10%	100 ± 10%	0.0004 mg/L
15	Uranium	10%	100 ± 10%	0.0075 mg/L
16	Total ammonia	10%	100 ± 10%	0.05 mg/L expressed as nitrogen (N)
17	Hardness	10%	100 ± 10%	1 mg/L
18	Alkalinity	10%	100 ± 10%	2 mg/L
19	Electrical Conductivity	10%	100 ± 10%	1 μS/cm

Return to footnote ¹Relative standard deviation at concentrations 10 times above the MDL.
Return to footnote ²Analyte recovery at concentrations above 10 times the MDL.