| Validation | |
|---|---|
| Must be in standard GIS format (e.g., .shp, .kml, .json) | - |
| Must be represented in a 2D polygon geometry | - |
| Must be represented using a detailed polygon geometry | - |
| Must encompass the WWTP location (sampling location) | - |
| Must encompass the sewer network | - |
| Must include required files (for .shp format) | - |
| Must not be a point, line or polyline feature type | - |
| Must not be in local coordinate system | - |
| Must not have multi-polygons geometry | - |
| Must retain essential attributes | - |