Table 24
Water discharge in mineral extraction industries,
by type of final treatment, industry group and region, 2007
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| Water not treated before discharge | Primary or mechanical | Secondary or biological | Tertiary or advanced | |
|---|---|---|---|---|
| millions of cubic metres | ||||
| Industry group | ||||
| Coal mines | 18.8 B | x | x | x |
| Metal mines | 322.3 C | 87.7 B | x | x |
| Non-metal mines 1 | 98.3 D | x | x | x |
| Total | 439.3 C | 269.2 B | 28.5 D | 17.9 B |
| Region | ||||
| Atlantic 2 | 222.3 D | x | 11.1 D | x |
| Quebec | 99.6 C | 50.3 E | x | x |
| Ontario | 34.0 E | 34.4 C | x | x |
| Prairies 3 | 36.1 B | x | x | 0.0 |
| British Columbia and territories 4 | 47.4 D | 152.0 A | F | x |
| Canada | 439.3 C | 269.2 B | 28.5 D | 17.9 B |
Excluding sand, gravel, clay, and ceramic and
refractory minerals mining and quarrying (North American Industry Classification
System, code 21232).
Atlantic provinces include: Newfoundland and
Labrador, Prince Edward Island, Nova Scotia and New Brunswick.
Prairie provinces include: Manitoba, Saskatchewan
and Alberta.
British Columbia and territories include: British
Columbia, Yukon, Northwest Territories and Nunavut.
Note(s):
Figures may not add up to totals due to rounding.
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