Table 12-2
Water discharge in manufacturing industries,
by type of final treatment, 2011 — Drainage regions
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| Water not treated before discharge | Primary or mechanical | Secondary or biological | Tertiary or advanced | |
|---|---|---|---|---|
| millions of cubic metres | ||||
| Canada | 1,097.7 A | 576.2 A | 1,167.0 A | 385.8 A |
| Pacific Coastal | 7.0 E | F | x | x |
| Fraser - Lower Mainland | 39.4 B | x | 160.6 B | x |
| Okanagan - Similkameen | 0.2 E | F | 0.2 C | 0.0 |
| Columbia | x | F | x | x |
| Yukon | x | x | x | 0.0 |
| Peace - Athabasca | x | x | 120.4 A | 0.0 |
| Lower Mackenzie | x | 0.0 | x | 0.0 |
| Arctic Coast - Islands | x | 0.0 | 0.0 | 0.0 |
| Missouri | 0.0 | 0.0 | 0.0 | 0.0 |
| North Saskatchewan | 9.4 E | 7.5 B | 4.7 A | 0.0 E |
| South Saskatchewan | 7.2 B | 6.8 E | F | 3.4 E |
| Assiniboine - Red | 3.9 D | 6.8 B | x | x |
| Winnipeg | 0.1 B | 0.0 | x | 0.0 |
| Lower Saskatchewan - Nelson | x | x | x | x |
| Churchill | 0.0 C | 0.0 | x | 0.0 |
| Keewatin - Southern Baffin Island | x | 0.0 | 0.0 | 0.0 |
| Northern Ontario | x | 0.0 | x | 0.0 |
| Northern Quebec | x | 0.0 E | x | 0.0 |
| Great Lakes 1 | 451.8 A | 237.0 A | 157.9 A | 297.2 A |
| Ottawa 1 | 45.4 E | 38.9 E | 66.0 B | 0.1 E |
| St. Lawrence 1 | 239.1 C | 111.3 A | 188.0 B | 11.4 E |
| North Shore - Gaspé | x | x | 58.9 A | x |
| Saint John - St. Croix | 35.3 A | 8.4 A | 84.0 A | 1.7 A |
| Maritime Coastal | 36.1 B | 111.1 D | 62.7 D | 2.9 E |
| Newfoundland - Labrador | x | x | F | x |
| percent | ||||
| Percentage of total water discharge | 34.0 | 17.9 | 36.2 | 12.0 |
For both 2007 and 2009, data
for the Great Lakes drainage region, the Ottawa drainage region and the St.
Lawrence drainage region were combined under the Great Lakes drainage region.
For all other years they appear separately.
Note(s):
Figures may not add up to totals due to rounding.
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