Table 7.
Copper concentrations in drinking water by ecozone
| Ecozone | No. of first draw samples >2000 μg/L | No. of flushed samples >2000 μg/L | No. of first draw samples >1000–1999 μg/L | No. of flushed samples >1000–1999 μg/L | Maximum concentration, μg/L |
|---|---|---|---|---|---|
| Boreal Cordillera | 0 | 0 | 0 | 0 | 602 |
| Boreal Plains | 1 | 0 | 8 | 0 | 5130 |
| Montane Cordillera | 1 | 0 | 1 | 0 | 2200 |
| Pacific Maritime | 4 | 0 | 9 | 0 | 2930 |
| Taiga Plains | 0 | 0 | 0 | 0 | 337 |
| Taiga Shield | 0 | 0 | 2 | 0 | 1270 |
| Boreal Shield | 5 | 2 | 21 | 0 | 6540 |
| Prairies | 0 | 0 | 2 | 1 | 1890 |
| Hudson Plains | 3 | 0 | 5 | 0 | 3460 |
| Mixedwood Plains | 1 | 1 | 4 | 2 | 5850 |
| Atlantic Maritime | 0 | 0 | 3 | 0 | 1570 |
| Total | 15 | 3 | 55 | 3 | 6540 |