https://www.waterworld.com/home/article/16192273/introduction-to-wastewater-treatment-ponds#:~:text=The%20most%20often%20used%20ponds,and%20aerobic%20at%20the%20top. >Thursday, December 17, 2020 1:15 PM -06:00 from Joseph Eisenberg ><joseph.eisenb...@gmail.com>: > >Re: "volume, elevation and sometimes particular usage" > >I don't think mappers can know the maximum volume or capacity of a water >reservoir or water basin, unless it is written on a public sign somewhere? We >can map the surface area, but knowing the average depth or maximum depth is >quite difficult, especially when it is not uniform. However for >man_made=reservoir_covered and =storage_tank we have capacity=* (in cubic >meters?) and content=water/sewage/etc. > >It is possible to use ele=* for the elevation of the surface of the water if a >mapper has a very good GPS or finds this info on a sign, but this information >is also widely available from digital elevation models. > >The usage is not often tagged yet, since this might be hard for a mapper to >know. > >Currently for landuse=reservoir and water=reservoir this is some use of >reservoir_type= - https://wiki.openstreetmap.org/wiki/Key:reservoir_type - >with values of water_storage, sewage, tailings, evaporator, tank, salt_pan, >wastewater, slurry, irrigation, aquicultura, cooling, etc - though only the >first 4 are at all common. > >basin=* is used with landuse=basin or water=basin to describe the form and >function of the basin: >* basin = infiltration - An infiltration basin catches storm water and >allows it to seep into an aquifer . >* basin = detention - A detention basin catches storm water and allows it >to drain slowly into natural waterways. >* basin = retention - A retention basin catches storm water and retains >it, forming an artificial pond. > >And note that salt ponds (used to evaporate salt from sea-water) are tagged as > landuse = salt_pond >Pools for swimming are leisure = swimming_pool > >I don't see many combinations with usage=* or another tag that might describe >how the reservoir or basin is used, so perhaps this could be proposed? > >-- Joseph Eisenberg > >On Thu, Dec 17, 2020 at 10:36 AM François Lacombe < fl.infosrese...@gmail.com >> wrote: >>Hi all >> >>I'm ashamed to not have enough time to be involved in all discussions >>regarding reservoir, ponds, basins and so on... and thank you to make such a >>capital topic on the table >>I'd be happy with a tagging that separates the structure, the water body and >>purpose of a given feature. >> >>Have a look to Storage chapter in this page (probably lacks many thing, it's >>just a start) >>https://wiki.openstreetmap.org/wiki/Water_management >> >>There are at least 5 ways to tag features involved in (potable) water storage >>What if I'm only interested to find "water storage places" with their volume, >>elevation and sometimes particular usage? >>Waste water retention basins are a supplementary situation like we could find >>dozens of them. >>Where will this end? >> >>All discussed features share the "water body" concept (or more generic >>fluid-body with substance=water) inside very different structures with even >>different purposes. >>Why don't we look to describe a generic water body, with a volume, elevation >>and usage prior to list every single feature that stores/retain water? >> >>This said, it's fine to have many different tags to describe very different >>structures (building=*, man_made=*, natural=*...) >>As such structures tagging should be separated from the water body they >>contain, an uniformed semantic for water bodies would make OSM a yet cooler >>place than it already is >> >>All the best >> >>François >> >> >>Le jeu. 17 déc. 2020 à 18:46, Brian M. Sperlongano < zelonew...@gmail.com > a >>écrit : >>>I knew them as sewage treatment ponds, but apparently there's a name for >>>them: >>> https://en.m.wikipedia.org/wiki/Waste_stabilization_pond >>> >>>I feel like this a separate class of object that deserves its own tag, >>>either within or separate from natural=water, or perhaps even subclassed as >>>water=basin+basin=waste? >>>On Thu, Dec 17, 2020, 12:24 PM Joseph Eisenberg < joseph.eisenb...@gmail.com >>>> wrote: >>>>How should sewage treatment facilities be tagged, then? >>>> >>>>Isn't sewage 99% water? >>>> >>>>I think that most sewage treatment facilities in the USA include open >>>>settling basins and I would use landuse=basin or water=basin + >>>>natural=water for these: https://www.openstreetmap.org/way/420075503 >>>> >>>>-- Joseph Eisenberg >>>> >>>>On Thu, Dec 17, 2020 at 1:55 AM Mateusz Konieczny via Tagging < >>>>tagging@openstreetmap.org > wrote: >>>>> >>>>> >>>>> >>>>>Dec 17, 2020, 08:02 by dieterdre...@gmail.com : >>>>>> >>>>>> >>>>>>sent from a phone >>>>>> >>>>>>>On 16. Dec 2020, at 17:52, Joseph Eisenberg < joseph.eisenb...@gmail.com >>>>>>>> wrote: >>>>>>>You still have to distinguish marine water (outside of the >>>>>>>natural=coastline) from inland waters, and distinguishing rivers from >>>>>>>lakes is very important for proper rendering of many maps. >>>>>> >>>>>> >>>>>>and it seems landuse=reservoir is used for sewage as well: >>>>>>https://taginfo.openstreetmap.org/tags/reservoir_type=sewage >>>>>> >>>>>>is this appropriate for natural=water? >>>>>No. >>>>> _______________________________________________ >>>>>Tagging mailing list >>>>>Tagging@openstreetmap.org >>>>>https://lists.openstreetmap.org/listinfo/tagging >>>>_______________________________________________ >>>>Tagging mailing list >>>>Tagging@openstreetmap.org >>>>https://lists.openstreetmap.org/listinfo/tagging >>>_______________________________________________ >>>Tagging mailing list >>>Tagging@openstreetmap.org >>>https://lists.openstreetmap.org/listinfo/tagging >>_______________________________________________ >>Tagging mailing list >>Tagging@openstreetmap.org >>https://lists.openstreetmap.org/listinfo/tagging >_______________________________________________ >Tagging mailing list >Tagging@openstreetmap.org >https://lists.openstreetmap.org/listinfo/tagging
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