|  | Hydrological conditions | Use of the watersheda | E. coli | |||
---|---|---|---|---|---|---|---|
 | Sampling date (day/mo/yr) | Rainfall (mm) | Turbidity (NTUb) | SSCc (mg.L-1) | Head of cattle | CFU/100 ml | |
 |  | Within 5 days of sampling | On day of sampling |  |  |  |  |
Wet period | 21 Feb 2007 | 27.8 | 2.0 | 15.0 | 23.0 | 0 | (1.0 ± 0.1) 102 |
Dry period | 3 May 2007 | 3.8 | 0.0 | 3.1 | 11.4 | 172 | (6.2 ± 0.6) 102 |
Rainfall event during dry period | 11 July 2007 | 8.9 | 50.0 | 33.0 | 74.4 | 172 | (4.0 ± 0.7) 104 |