| Year | Water loss % | Expected required water million m3 | Administrative water loss | Technical water loss | Volume of required water million m3 | ||
| % | million m3 | % | million m3 | ||||
| 2015 | 20 | 561.1 | 5 | 28.1 | 15 | 84.2 | 476.9 |
| 2020 | 15 | 678.5 | 5 | 33.9 | 10 | 67.9 | 610.7 |