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Weightings applied to the drinking water and distribution system criteria used in the ranking of Canadian water systems serving >1000 people
| Weight out of 100 | |
|---|---|
| Drinking water system criteria | |
| Source water type | 10 |
| Source water quality | 30 |
| Log reduction capability of the treatment system | 30 |
| Number of treatment barriers | 20 |
| Population served | 10 |
| Distribution system criteria | |
| Pipe material | 20 |
| Pipe condition | 20 |
| System size (pipe length) | 15 |
| Population served | 15 |
| Storage | 15 |
| Chloramination | 15 |
