De or het incidentlocatie?

The correct Dutch article is:

de incidentlocatie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use incidentlocatie

the incidentlocatiede incidentlocatie
this incidentlocatiedeze incidentlocatie
that incidentlocatiedie incidentlocatie
our incidentlocatieonze incidentlocatie
your incidentlocatiejouw incidentlocatie
every incidentlocatieelke incidentlocatie
which incidentlocatie?welke incidentlocatie?
a big incidentlocatie / the big incidentlocatieeen grote incidentlocatie, de grote incidentlocatie