| 81 | What are the time, location, and process that recycled water provided to public at Dihua Sewage Treatment Plant? Do you need to apply in advance? Is there any fee for the application? | 2023-05-01 |
| 82 | What is the source of recycled water at Dihua Sewage Treatment Plant? | 2023-05-01 |
| 83 | How much recycled water is produced a day at Dihua Sewage Treatment Plant? How much of it can be provided to public? | 2023-05-01 |
| 84 | What is the purpose of recycled water that being produced from the Dihua Sewage Treatment Plant? Is it safe for human usage? | 2023-05-01 |
| 85 | How is the quality control of recycled water at Dihua Sewage Treatment Plant? | 2023-05-01 |