Sanitation collectors on Rennes Métropole

This layer schematically or topographically locates wastewater collectors, unit collectors and rainwater collectors. Among the available attributes: \- Status: status (public/private/undetermined) of the collector concerned; \- Operation: condition of the collector (abandoned, planned, disconnected...); \- Material: material of the collector – this field insists on the “Friend cement” value as this strongly impacts the work on collectors and their maintenance; \- Sensitivity: this value concerns waste and unit water and refers to users connected upstream of the pipe and their sensitivity to a malfunction of the network. Structures such as hospitals, EHPADs or schools will have a high value (3 or 4) while the pavilions of individuals at the top of the network will have a low value (1 or 2); \- Refoulement: pressure-operated pipes; \- Note ITV: the result of television inspections of the different types of collectors; \- preci_horizontal: to make the difference, the value “Low” indicates that it is a schematic accuracy, the value “Topographic” indicates that it is a topographical accuracy.