Surface entity responsible for the risk of Hem’s PPRN

The origin of risk characterises the real-world entity which, by its presence, represents a potential risk. This origin can be characterised by a name and, in some cases, a geographical object l' real entity to #x27; origin of risk. The location of the entity and the knowledge of the dangerous phenomenon are used to define the risk basins, the areas exposed to the risks that form the PPR.For PPRNs, this entity may, for example, correspond to a stream of water, a geologically unstable area. __Origin__ According to the state of the heritage of the geographical data used in the port-to-know of l’'State- by digitising the clearance surfaces from the large-scale repository (BD Topo) or Scan 25- by reuse of the resource N_T5_ASSIETTE_SUP_S described by the Geostandard COVADIS Servitudes d’' Public Utility and rendered obsolete by this CNIG standard __Partner organisations__ DDTM Pas-de-Calais __Links annexes__ * [XML metadata view](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-fbda7e16-d9c3-444a-9229-49fb5b1fe235) * [COVADIS data standard: Table containing surface plates related to T5 easements.](http://geostandards.developpement-durable.gouv.fr/afficherPageStandard.do?jeu=T5_ASSIETTE_SUP_S) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/2b87c583aa31567cdfa270cd9225188b57e9d449)