| Date | Average sodium hypochlorite dosage (mg/L) | Average sodium bisulphite dosage (mg/L) |
| 5/1/2010 | 14 | 6 |
| 5/2/2010 | 15 | 6 |
| 5/3/2010 | 15 | 7 |
| 5/4/2010 | 14 | 7 |
| 5/5/2010 | 14 | 6 |
| 5/6/2010 | 13 | 7 |
| 5/7/2010 | 13 | 6 |
| 5/8/2010 | 14 | 7 |
| 5/9/2010 | 13 | 6 |
| 5/10/2010 | 14 | 7 |
| 5/11/2010 | 13 | 7 |
| 5/12/2010 | 13 | 6 |
| 5/13/2010 | 13 | 6 |
| 5/14/2010 | 13 | 7 |
| 5/15/2010 | 13 | 7 |
| 5/16/2010 | 13 | 7 |
| 5/17/2010 | 14 | 7 |
| 5/18/2010 | 13 | 7 |
| 5/19/2010 | 11 | 7 |
| 5/20/2010 | 12 | 8 |
| 5/21/2010 | 11 | 7 |
| 5/22/2010 | 11 | 7 |
| 5/23/2010 | 11 | 7 |
| 5/24/2010 | 12 | 7 |
| 5/25/2010 | 12 | 7 |
| 5/26/2010 | 12 | 6 |
| 5/27/2010 | 12 | 7 |
| 5/28/2010 | 12 | 7 |
| 5/29/2010 | 12 | 7 |
| 5/30/2010 | 12 | 7 |
| 5/31/2010 | 12 | 7 |