Table 7. Point-biserial correlation coefficients (rpb) of total fecal coliforms and generic Escherichia coli with the occurrence of verotoxigenic E. coli (VTEC), Salmonella, and Listeria monocytogenes in water samples collected from three sites each in two watersheds of the Lower Mainland of British Columbia.
| Total Fecal Coliforms | Generic E. coli | |||
|---|---|---|---|---|
| Pathogen | Membrane Filtration | 3M™ Petrifilm™ | Membrane Filtration | 3M™ Petrifilm™ |
| VTEC | 0.273** | 0.267** | 0.320** | 0.092 |
| L. monocytogenes | 0.412** | 0.152* | 0.403** | 0.072 |
| Salmonella | 0.097 | 0.042 | 0.099 | -0.017 |
| Any pathogen | 0.448** | 0.252** | 0.430** | 0.083 |
* p < 0.05
** p < 0.001