Table 24
Water discharge in mineral extraction industries,
by type of final treatment, industry group and region, 2011
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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 | 23.3 A | 13.7 A | 0.1 A | 0.0 |
| Metal mines | 106.5 B | 194.0 B | x | x |
| Non-metal mines 1 | 128.0 E | 72.3 B | x | x |
| Total | 257.8 D | 279.9 A | x | x |
| Region | ||||
| Atlantic 2 | 74.4 C | x | x | 19.1 A |
| Quebec | x | 80.7 A | 0.1 C | x |
| Ontario | x | x | x | x |
| Prairies 3 | 42.7 B | x | 0.0 A | x |
| British Columbia and territories 4 | 37.9 A | 57.2 D | x | x |
| Canada | 257.8 D | 279.9 A | x | x |
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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