GWSW Ontologie
| Naam | Code  |
| URI | Code |
| Definitie intern | Unieke verkorte aanduiding |
| Datum start/wijz | 2006-02-21 / 2015-07-23 |
| Is kenmerk van | Afwateringsgebied [inverse] |
| RWZI [inverse] | |
| Rioleringsgebied [inverse] | |
| Zuiveringseenheid [inverse] |
| Is type | Unieke identificatie |