| OTHERS |
| STP/NPS & STF: Buffer Zone |
| STP/NPS & STF: Design defects |
| STP/NPS & STF: Effluent Discharge Point/Drainage Issue |
| STP/NPS & STF: Hydraulic/Organic Overloading |
| STP/NPS & STF: Inadequate Perimeter Protection |
| STP/NPS & STF: Influent Illegal Discharge |
| STP/NPS & STF: Inundation |
| STP/NPS & STF: Non Conventional System |
| STP/NPS & STF: Product Defect |
| STP/NPS & STF: Slope Failure |
| STP/NPS & STF: Sludge/Biosolid overloading |
| STP/NPS & STF: Structural/Infra Defects |
| STP/NPS & STF: Theft Prone |
| Sewer Network: Illegal Dumping |
| Sewer Network: Insufficient Capacity |
| Sewer Network: Maintenance Access Issue |
| Sewer Network: Sewer Defects |
| Sewer Network: Unsuitable Pipe Materials |
| Sewer Network: Unsuitable Route/Layout/Location of Sewer |