Table 1.
Overall occurrence of parasites detected at each drinking water treatment plant and the distribution systems.
| Location | Parasites | |||||||
|---|---|---|---|---|---|---|---|---|
| Giardia | Cryptosporidium | Other Parasites | Amoebae | |||||
| +/N | % | +/N | % | +/N | % | +/N | % | |
| Subdivision A-1 | 6/30 | 20.0 | 5/30 | 16.7 | 12/30 | 40.0 | 18/18 | 100.0 |
| Subdivision A-2 | 13/30 | 43.3 | 6/30 | 20.0 | 9/30 | 30.0 | 18/18 | 100.0 |
| Plant B | 9/18 | 50.0 | 4/18 | 22.2 | 6/18 | 3.3 | 18/18 | 100.0 |
| DS | 0/7 | 0 | 1/7 | 14.3 | 0/7 | 0 | 1/7 | 14.3 |
| Total Positive | 28/85 | 32.9 | 16/85 | 18.8 | 27/85 | 31.8 | 55/61 | 90.2 |
DS = Distribution system; + = positive samples, N = total of samples; % = percentage.