On Fri, 18 Dec 2020 at 01:04, Joseph Eisenberg <joseph.eisenb...@gmail.com> wrote:
> > But there is also > https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dwastewater_plant - > man_made=wastewater_plant so perhaps the key wastewater_plant=* would be > appropriate, e.g.: landuse=basin + content=sewage > + wastewater_plant=decanter for your example? > landuse=basin seems inappropriate for many wastewater treatment plants. It may be appropriate for plants which use constructed wetlands, but the plants that have aerators, clarifiers, digesters, etc. don't have anything that could be called a basin but do have large, mappable objects (the circular profiles are a good clue from aerlial imagery that a wastewater plant is there). See https://upload.wikimedia.org/wikipedia/commons/5/54/ESQUEMPEQUE-EN.jpg There are also farm slurry pits, which handle animal faeces but do not attempt to purify water. https://en.wikipedia.org/wiki/Slurry_pit I'm not entirely happy with natural=water being applied to either sewage treatment or slurry. Neither are natural and neither store water. -- Paul
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