| Year | Number of days | Total | ||||
| Turbidity less or equal than 5 NTU | Turbidity more than 5and less or equal than 10 NTU | Turbidity more than 10 and less or equal than 20 NTU | Turbidity more than 20 and less or equal than 40 NTU | Turbidity more than 40 NTU | ||
| 2009 | 147 | 60 | 101 | 34 | 23 | 365 |
| 2010 | 0 | 0 | 113 | 148 | 104 | 365 |
| 2011 | 0 | 132 | 144 | 59 | 30 | 365 |
| 2012 | 301 | 38 | 17 | 5 | 5 | 366 |
| 2013 | 260 | 74 | 23 | 8 | 0 | 365 |
| 2014 | 247 | 62 | 32 | 20 | 4 | 365 |
| 2015 | 184 | 132 | 34 | 10 | 5 | 365 |
| Total | 1139 | 498 | 464 | 284 | 171 | 2556 |
| Aggregated data | 1139 | 1637 | 2101 | 2385 | 2556 |
|
| Percentage | 45% | 19% | 18% | 11% | 7% |
|
| Percentage of Aggregated data | 45% | 64% | 82% | 93% | 100% |
|