Bacterial loadings from the resuspension of contaminated sediments were measured in situ at three Toronto waterfront beaches and the increase in water bacterial densities due to sediment resuspension was determined. The loadings due to sediment resuspension varied from 0 to 1410 fecal coliforms/(m2∙s). Sediment loadings in excess of 100 fecal coliforms/(m2∙s) caused significant increases in the water fecal coliform densities in shallow beach areas. Over 2970 water samples were analyzed for both fecal coliforms and E.coli and it was found that fecal coliforms and E.coli were statistically correlated. Over 1770 water samples were analyzed for both fecal coliforms and Pseudomonas aeruginosa and these bacteria were found to be statistically correlated. Key words: beach bacterial contamination, sediment resuspension loadings, fecal coliforms, E.coli and Pseudomonas aeruginosa.