| 1 | 3-1 River Pollution by River-Lengths | 2021-04-26 | PDF | 12 |
| 2 | 3-2 Trophic State Index of Major Reservoirs | 2021-04-26 | PDF | 4 |
| 3 | 3-3 Coastal Water Quality Monitoring | 2021-04-26 | PDF | 6 |
| 4 | 3-4 Wastewater Pollution Reduction | 2021-04-26 | PDF | 10 |
| 5 | 3-5 Drinking Water Quality Inspection | 2021-04-26 | PDF | 13 |