| Attributes | Alternative A | Alternative B | Status quo |
| Quantity of treated wastewater | 60% | 70% | Neither alternative A nor alternative B: I prefer to stay with my current service |
| Restoration the ecosystem in Nhue-Day river basin | Yes | No | |
| Improvement of wastewater collection system | No
| Yes | |
| Additional monthly fee | 50 | 130 | |
| Your choice | | | |