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All treatment processes that remove wastewater from an individual single-family home usually on the plot on which the house is built, without any wastewater conveyance. An extension (rarer) concerns the wastewater treatment of some neighbouring houses on private land. It is still on-site sanitation but it is regrouped. On the contrary, a group having a small collecting system and a treatment facility (spreading, filters, etc.) on community land is considered community sanitation. On-site sanitation is first defined as opposed to community sanitation.
A sanitation process including a public system for wastewater collecting and conveyance to a treatment plant.
Municipal urban planning document, created by the Law on Urban Solidarity and Renewal (SRU) of 13 December 2000 and replacing the land use plan, the local urbanisation plan (PLU) sets out rules for land use. It may also include operational urban planning projects such as the development of existing or new urban districts, public spaces or city entrances, etc. The PLUs must be compatible or made compatible, within three years, with the basic guidelines for sound water resources management and with the water quality and quantity objectives defined by the
All facilities for the collecting and treatment of urban wastewater. These systems are often managed by public authorities or semi-public associations.
Extraction of fresh water from a groundwater source or surface, permanently or temporarily, and conveyed to the place of use. Water abstractions include all activities related levies generated by agriculture, industry (including energy), the supply of drinking water, or other (mineral spring authorized, production artificial snow).
Area on which the water that soaks into the ground supplies the abstraction for drinking water.
Warning issued in advance by the departmental flood forecasting services. In the event of heavy rainfall or hydrological alert, a flood warning is sent to the Prefect, who then alerts the mayors of the catchment areas concerned.
Warning issued in advance by a special state service (flood forecasting service). In the event of a rainfall or hydrological alert (triggering when thresholds are exceeded), the flood forecasting service offers the Prefect the alert of the mayors of the watersheds concerned. As a severe overflow flood, the flood warning service broadcasts, for prefects and mayors, hydrological situation bulletins and information on the evolution of water levels . In 1994, 54 flood warning services monitored 16,000 km of waterways in France using automated measurement networks.