| Date | Average sodium hypochlorite dosage after concentration correction (mg-Cl2/L) | Average sodium bisulphite dosage (mg/L) |
| 5/1/2012 | 16 | 3 |
| 5/2/2012 | 16 | 3 |
| 5/3/2012 | 17 | 3 |
| 5/4/2012 | 17 | 3 |
| 5/5/2012 | 17 | 3 |
| 5/6/2012 | 17 | 3 |
| 5/7/2012 | 17 | 3 |
| 5/8/2012 | 17 | 2 |
| 5/9/2012 | 18 | 3 |
| 5/10/2012 | 18 | 2 |
| 5/11/2012 | 18 | 3 |
| 5/12/2012 | 18 | 3 |
| 5/13/2012 | 18 | 3 |
| 5/14/2012 | 18 | 3 |
| 5/15/2012 | 18 | 3 |
| 5/16/2012 | 18 | 3 |
| 5/17/2012 | 19 | 3 |
| 5/18/2012 | 16 | 4 |
| 5/19/2012 | 17 | 3 |
| 5/20/2012 | 19 | 3 |
| 5/21/2012 | 18 | 4 |
| 5/22/2012 | 17 | 4 |
| 5/23/2012 | 17 | 4 |
| 5/24/2012 | 18 | 4 |
| 5/25/2012 | 18 | 3 |
| 5/26/2012 | 18 | 3 |
| 5/27/2012 | 18 | 3 |
| 5/28/2012 | 17 | 3 |
| 5/29/2012 | 18 | 3 |
| 5/30/2012 | 18 | 3 |
| 5/31/2012 | 18 | 3 |