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Public-images-osm logo.svg man_made = wastewater_plant
Klaerwerk Buelk nahe Kiel.jpg
A wastewater plant is a facility used to treat wastewater. Show/edit corresponding data item.
Rendering in OSM Carto
Group: man made
Used on these elements
may be used on nodesshould not be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Useful combination
See also
Status: approvedPage for proposal

A wastewater plant (also known as sewage works, sewage treatment plant, wastewater treatment plant, wastewater treatment works (WWTW), reclamation plant, resource recovery facility) is a facility used to treat wastewater. It includes physical, chemical, and biological processes to remove physical, chemical, and biological contaminants. See  sewage treatment.

How to map

Draw an area marking this feature. It is also OK to set a node at its center if mapping as area is impossible.

Add the tag man_made=wastewater_plant

This tag is often combined with landuse=industrial, which is both correct and may help simpler data consumers.

Useful combinations

The treatment reservoirs can be mapped as:

Tanks, particularly with walls or a roof, should instead use man_made=storage_tank with content=sewage (assuming that the wastewater is sewage; other types of wastewater, such as industrial waste, should use the more general content=wastewater). Other man_made=storage_tank combinations will likely apply as well in this case.


Wastewater treatment plants could lend themselves to micromapping, however identifying the functions of various components may not be easy. This newspaper article provides a useful overview of these components & their functions.



Similar tags

  • man_made=water_works - A place where drinking water is found and applied to the local waterpipes network. water works = incoming drinking water, wastewater plant = outgoing sewage.

Tagging mistakes

If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!