| Storm | Runoff generating Areas (%) | Rainfall (mm) | Peak Flow (L/S) | Time to Peak (min) | Volume of Runoff (m3) | Depth of Runoff (mm) | Runoff Coefficient (%) | Return Period (year) |
| July 22, 2008 | 33 | 28.2 | 3.40 | 140 | 12 | 0.30 | 1 | 2.8 |
| July 30, 2008 | 8 | 8.8 | 0.50 | 120 | 6 | 0.14 | 1.5 | 1.3 |
| August 2, 2008 | 0 | 1.4 | 0.00 | 0 | 0 | 0.00 | 0 | 0.0 |
| August 5, 2008 | 41 | 37.4 | 6.10 | 50 | 14 | 0.40 | 1 | 3.5 |
| August 7, 2008 | 26 | 1.7 | 0.20 | 70 | 0.7 | 0.05 | 6 | 1.2 |
| August 9, 2008 | 66 | 20.6 | 3.00 | 30 | 5 | 0.15 | 1 | 2.3 |
| August 10, 2008 | 100 | 25.6 | 7.10 | 110 | 26 | 0.60 | 2.5 | 4.7 |
| August 13, 2008 | 17 | 2.8 | 0.15 | 40 | 4 | 0.10 | 3.5 | 1.1 |
| August 14, 2008 | 7 | 3.6 | 0.45 | 30 | 0.6 | 0.02 | 0.5 | 1.3 |
| August 18, 2008 | 41 | 10.2 | 2.20 | 60 | 4 | 0.10 | 1 | 2.0 |
| September 13, 2008 | 0 | 34.5 | 0.00 | 0 | 0 | 0.00 | 0 | 0.0 |
| September 14, 2008 | 100 | 15.5 | NA | NA | NA | NA | NA | NA |
| October 2, 2008 | 15 | 3.5 | 0.85 | 40 | 2.2 | 0.06 | 2 | 1.6 |
| October 8, 2008 | 0 | 11.8 | 0.00 | 0 | 0 | 0.00 | 0 | 0.0 |
| October 16, 2008 | 7 | 3.0 | 0.50 | 40 | 1.2 | 0.04 | 1.5 | 1.4 |
| March 29, 2009 | 48 | 16.2 | 13.50 | 150 | 178 | 4.00 | 24 | 7 |
| April 1, 2009 | 24 | 3.8 | 1.30 | 150 | 8.3 | 0.20 | 7 | 1.8 |
| April 3, 2009 | 83 | 30.9 | 19.50 | 820 | 623 | 14.0 | 45 | 14 |