Table 2
Percentage of surface water and groundwater volumes
processed by drinking water plants, by treatment category, 2007
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| Surface water | Groundwater 1 | |
|---|---|---|
| percent of total water treated | ||
| Treatment category 2 | ||
| Conventional treatment | 53.5 | 3.8 |
| Direct filtration | 8.3 | 2.0 |
| Other filtration systems | 19.1 | 10.8 |
| Disinfection and other (unfiltered systems) | 11.6 | 34.0 |
| Disinfection only | 7.5 | 29.6 |
| No treatment | 0.1 | 17.4 |
| No disinfection with other treatment | 0.0 | 2.6 |
Includes groundwater under the direct influence
of surface water (GUDI).
Note(s):
Excludes Nunavut due to low response. Figures may not add up to totals
due to rounding.
Source(s):
Statistics Canada, Environment Accounts and Statistics Division, 2011,
Survey of Drinking Water Plants, special tabulation.
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